ig lintel manual april 09

IG Limited,Avondale Road,

Cwmbran,Gwent NP44 1XY

Tel: 01633 486486 Fax: 01633 486465E-mail: [email protected] Website: www.igltd.co.uk

Sales Department Hotline: 01633 486460 Fax: 01633 486465Technical Department Hotline: 01633 486461 Fax: 01633 486495Specials Department Hotline: 01633 486449 Fax: 01633 486495

The information contained in this brochure was accurate at the date of going to press. The Company, however, reserves the right, while maintaining the essential

performance of the lintels described, to introduce at any time modifications and changes of details as may be considered necessary to improve the products described.

Every endeavour will be made to bring this brochure up-to-date at regular intervals, but in order to avoid any misunderstanding, any

person interested should enquire of the Company as to whether there have been any material alterations since the date of this publication.

IG Limited is part of the

NEW

IMPR

OVED

PROF

ILE CI/SfB(31.9)

April 2009

Xh2

Part of the

INTRODUCTION 2

CONTENTS 3

PRODUCT GUIDE 4-6

CAVITY WALL LINTELS

THE L1 PROFILE 7

STANDARD 50-70/70-95 CAVITY 8-9

95-110/110-150 CAVITY 10-11

WIDE INNER LEAF 50-70 CAVITY 12

70-95/95-110 CAVITY 13-14

WIDE OUTER LEAF 50-110 CAVITY 15

L1/E EAVES LINTELS 16

STANDARD & WIDE INNER 50-100 CAVITY 17

HEAVY DUTY LINTELS 50-110 CAVITY 18

EXTRA HEAVY DUTY LINTELS 50-110 CAVITY 19

TIMBER FRAME LINTELS 20

L7/50 TIMBER FRAME 40-55 CAVITY 21

L7/75 TIMBER FRAME 70-90 CAVITY 21

L8/50 CONCRETE INNER 50-65 CAVITY 21

SINGLE WALL LINTELS 22

L9/L10/L11 23

BOX LINTELS 24

STANDARD 75-200 24-25

HEAVY DUTY 100-200 26

INTERNAL LINTELS 27

LINTEL SOFFIT CLADDING 28

UNIVERSAL ARCH 28

STAINLESS STEEL LINTELS 29

SPECIAL LINTELS AND FAX BACK FORM 29-32

TECHNICAL INFORMATION 33-35

CAVITY TRAYS 36-37

KEYLITE ROOF WINDOWS 38-39

C O N T E N T S

3

LINTELLIGENCE

Forty years of successfully meeting the lintel needs

of specifiers and contractors has taught us to take

nothing for granted.

We have developed our comprehensive range of

standard lintels to ensure we cover all conventional

and timber frame constructions. The range is

continually evolving to take account of changing

building requirements such as higher standards of

insulation.

Investment in manufacturing enables us to meet a

growing need for lintels of non-standard design -

we established our special lintels department

specifically to satisfy those needs.

If our standard range does not provide the lintels

you require, we will design and manufacture lintels

to meet your specification.

Specifying lintels is not always straightforward, so

we provide a range of technical advice and support

services to make sure our lintels are always used

in the most effective and efficient manner. This

includes free lintel scheduling to help ease your

busy workload.

Product quality and consistency have always been

of prime importance - that is why we have always

ensured that our lintels meet all current standards

of performance and durability. To help make sure

that our lintels are as good tomorrow as they are

today, we have just updated our lintel factory with

the latest machinery.

Finally, we have also learnt that all the above is

only of value if our lintels are available when and

where you want them. So our network of specialist

distributors has been established to give you ready

availability throughout the UK.

Features

Benefits

2

• Standard lintels for all cavity wall constructions

• Standard lintels for timber frame construction

• Special lintels designed and manufactured tospecification

• Complete with insulation and plaster key

• Conform to all relevant Building Regulations

• Available in galvanised mild steel or stainless steel

• Technical advice and assistance readily available

• Free lintel scheduling

• Investment in manufacture to ensure consistent quality

• Continually evolving product range to meetchanging needs

• Available through a nationwide network of specialistdistributors

New Website

www.igltd.co.uk

Now that is lintelligence - only available from IG Lintels

LL11//SS 5500

Page 8

LL11//HHDD 5500

Page 8

LL11//XXHHDD 5500

Page 8

LL11//SS WWIILL 5500

Page 12

LL11//HHDD WWIILL 5500

Page 12

LL11//XXHHDD WWIILL 5500

Page 12

LL11//SS WWOOLL 5500

Page 15

LL11//EE 5500

Page 17

LL11//EE WWIILL 5500

Page 17

LL55//5500

Page 18

LL66//5500

Page 19

LL11//SS 7755

Page 9

LL11//HHDD 7755

Page 9

LL11//XXHHDD 7755

Page 9


Page 13


Page 13


Page 13


Page 15

LL11//EE 7755

Page 17

LL55//7755

Page 18

LL66//7755

Page 19

LL11//SS 110000

Page 10

LL11//HHDD 110000

Page 10

LL11//XXHHDD 110000

Page 10


Page 14


Page 14


Page 14


Page 15

LL55//110000

Page 18

LL66//110000

Page 19

STAN

DAR

D

(also

availabl

e as

Ste

pped

Lin

tels)

WID

E IN

NER

BLO

CK/B

RIC

K(a

lso

availabl

e as

Ste

pped

Lin

tels)

WID

E O

UTE

RBL

OCK

/STO

NE

STAN

DAR

DST

AND

ARD

For standard duty loading conditions only

N.B. *Upstand to be positioned tight to inner block. Maximum overhang 25mm on either flangeFOR INSULATED BONDED BLOCK ARRANGEMENTS CONTACT TECHNICAL DEPARTMENT

BL

OC

K

SI

ZE

50 60 70 80 95 100 105 110 130 150

100 L1/S 50 L1/S 50 L1/S 75 L1/S 75 L1/S 100 L1/S 100 L1/S 100 L1/S 110 L1/S 130 L1/S 150

115 L1/S 50 L1/S 50 L1/S 75 L1/S 75 L1/S 100 L1/S 100 L1/S 100 L1/S 110 L1/S 130 L1/S 150

125 *L1/S 50/ L1/S WIL 50 *L1/S 75/ L1/S WIL 75 L1/S 100 L1/S WIL 100 L1/S WIL 100 *L1/S 110/ *L1/S 130/ *L1/S 150/L1/S WIL 50 L1/S WIL 75 L1/S WIL 110 L1/S WIL 130 L1/S WIL 150

130 L1/S WIL 50 L1/S WIL 50 L1/S WIL 75 L1/S WIL 75 L1/S WIL 100 L1/S WIL 100 L1/S WIL 100 L1/S WIL 110 L1/S WIL 130 L1/S WIL 150

140 L1/S WIL 50 L1/S WIL 50 L1/S WIL 75 L1/S WIL 75 L1/S WIL 100 L1/S WIL 100 L1/S WIL 100 L1/S WIL 110 L1/S WIL 130 L1/S WIL 150

150 *L1/S WIL 50 *L1/S WIL 50 *L1/S WIL 75 *L1/S WIL 75 *L1/S WIL 100 *L1/S WIL 100 *L1/S WIL 100 *L1/S WIL 110 *L1/S WIL 130 *L1/S WIL 150

190 WIL 50/200 WIL 50/200 WIL 75/200 WIL 75/200 WIL 100/200 WIL 100/200 WIL 100/200 WIL 110/200 WIL 130/200 WIL 150/200

215 WIL 50/200 WIL 50/200 WIL 75/200 WIL 75/200 WIL 100/200 WIL 100/200 WIL 100/200 WIL 110/200 WIL 130/200 WIL 150/200

C A V I T Y S I Z E ( C l e a r )

L INTELS SELECTION CHART

54

EAVE

S

L1/S 50

L1/HD 50

L1/XHD 50

L1/S 75

L1/HD 75

L1/HD 75

L1/S 100

L1/HD 100

L1/HD 100

L1/S WIL 50

L1/HD WIL 50

L1/HD WIL 50

L1/S WIL 75

L1/HD WIL 75

L1/HD WIL 75

L1/S WIL 100

L1/HD WIL 100

L1/HD WIL 100

L1/S 75 WOL

L1/S 100 WOL

L1/S 50 WOL L1/E 50

L1/E 75

L1/E WIL50

L7/75

L1/S 110

L1/S 130

L1/S 150L8/50

L7/50L1/S 50

L1/HD 50

L1/XHD 50

L1/S 75

L1/HD 75

L1/HD 75

L1/S 100

L1/HD 100

L1/HD 100

L1/S WIL 50

L1/HD WIL 50

L1/HD WIL 50

L1/S WIL 75

L1/HD WIL 75

L1/HD WIL 75

L1/S WIL 100

L1/HD WIL 100

L1/HD WIL 100

L1/S 75 WOL

L1/S 100 WOL

L1/S 50 WOL L1/E 50

L1/E 75

L1/E WIL50

L7/75

L1/S 110

L1/S 130

L1/S 150L8/50

L7/50L1/S 50

L1/HD 50

L1/XHD 50

L1/S 75

L1/HD 75

L1/HD 75

L1/S 100

L1/HD 100

L1/HD 100

L1/S WIL 50

L1/HD WIL 50

L1/HD WIL 50

L1/S WIL 75

L1/HD WIL 75

L1/HD WIL 75

L1/S WIL 100

L1/HD WIL 100

L1/HD WIL 100

L1/S 75 WOL

L1/S 100 WOL

L1/S 50 WOL L1/E 50

L1/E 75

L1/E WIL50

L7/75

L1/S 110

L1/S 130

L1/S 150L8/50

L7/50

CAVITY WALL LINTELS cont.

LL77//5500

Page 21

LL11//SS 111100

Page 11

LL77//7755

Page 21

LL11//SS 113300

Page 11

LL88//5500

Page 21

LL11//SS 115500

Page 11

WID

ER C

AVIT

IES

TYPE LOAD 40-55 CAVITY 70-90 CAVITY 50-65 CAVITY

L1/S 50

L1/HD 50

L1/XHD 50

L1/S 75

L1/HD 75

L1/HD 75

L1/S 100

L1/HD 100

L1/HD 100

L1/S WIL 50

L1/HD WIL 50

L1/HD WIL 50

L1/S WIL 75

L1/HD WIL 75

L1/HD WIL 75

L1/S WIL 100

L1/HD WIL 100

L1/HD WIL 100

L1/S 75 WOL

L1/S 100 WOL

L1/S 50 WOL L1/E 50

L1/E 75

L1/E WIL50

L7/75

L1/S 110

L1/S 130

L1/S 150L8/50

L7/50

L1/S 50

L1/HD 50

L1/XHD 50

L1/S 75

L1/HD 75

L1/HD 75

L1/S 100

L1/HD 100

L1/HD 100

L1/S WIL 50

L1/HD WIL 50

L1/HD WIL 50

L1/S WIL 75

L1/HD WIL 75

L1/HD WIL 75

L1/S WIL 100

L1/HD WIL 100

L1/HD WIL 100

L1/S 75 WOL

L1/S 100 WOL

L1/S 50 WOL L1/E 50

L1/E 75

L1/E WIL50

L7/75

L1/S 110

L1/S 130

L1/S 150L8/50

L7/50

L1/S 50

L1/HD 50

L1/XHD 50

L1/S 75

L1/HD 75

L1/HD 75

L1/S 100

L1/HD 100

L1/HD 100

L1/S WIL 50

L1/HD WIL 50

L1/HD WIL 50

L1/S WIL 75

L1/HD WIL 75

L1/HD WIL 75

L1/S WIL 100

L1/HD WIL 100

L1/HD WIL 100

L1/S 75 WOL

L1/S 100 WOL

L1/S 50 WOL L1/E 50

L1/E 75

L1/E WIL50

L7/75

L1/S 110

L1/S 130

L1/S 150L8/50

L7/50

L1/S 50

L1/HD 50

L1/XHD 50

L1/S 75

L1/HD 75

L1/HD 75

L1/S 100

L1/HD 100

L1/HD 100

L1/S WIL 50

L1/HD WIL 50

L1/HD WIL 50

L1/S WIL 75

L1/HD WIL 75

L1/HD WIL 75

L1/S WIL 100

L1/HD WIL 100

L1/HD WIL 100

L1/S 75 WOL

L1/S 100 WOL

L1/S 50 WOL L1/E 50

L1/E 75

L1/E WIL50

L7/75

L1/S 110

L1/S 130

L1/S 150L8/50

L7/50

L1/S 50

L1/HD 50

L1/XHD 50

L1/S 75

L1/HD 75

L1/HD 75

L1/S 100

L1/HD 100

L1/HD 100

L1/S WIL 50

L1/HD WIL 50

L1/HD WIL 50

L1/S WIL 75

L1/HD WIL 75

L1/HD WIL 75

L1/S WIL 100

L1/HD WIL 100

L1/HD WIL 100

L1/S 75 WOL

L1/S 100 WOL

L1/S 50 WOL L1/E 50

L1/E 75

L1/E WIL50

L7/75

L1/S 110

L1/S 130

L1/S 150L8/50

L7/50

L1/S 50

L1/HD 50

L1/XHD 50

L1/S 75

L1/HD 75

L1/HD 75

L1/S 100

L1/HD 100

L1/HD 100

L1/S WIL 50

L1/HD WIL 50

L1/HD WIL 50

L1/S WIL 75

L1/HD WIL 75

L1/HD WIL 75

L1/S WIL 100

L1/HD WIL 100

L1/HD WIL 100

L1/S 75 WOL

L1/S 100 WOL

L1/S 50 WOL L1/E 50

L1/E 75

L1/E WIL50

L7/75

L1/S 110

L1/S 130

L1/S 150L8/50

L7/50

L1/S 50

L1/HD 50

L1/XHD 50

L1/S 75

L1/HD 75

L1/HD 75

L1/S 100

L1/HD 100

L1/HD 100

L1/S WIL 50

L1/HD WIL 50

L1/HD WIL 50

L1/S WIL 75

L1/HD WIL 75

L1/HD WIL 75

L1/S WIL 100

L1/HD WIL 100

L1/HD WIL 100

L1/S 75 WOL

L1/S 100 WOL

L1/S 50 WOL L1/E 50

L1/E 75

L1/E WIL50

L7/75

L1/S 110

L1/S 130

L1/S 150L8/50

L7/50

L1/S 50

L1/HD 50

L1/XHD 50

L1/S 75

L1/HD 75

L1/HD 75

L1/S 100

L1/HD 100

L1/HD 100

L1/S WIL 50

L1/HD WIL 50

L1/HD WIL 50

L1/S WIL 75

L1/HD WIL 75

L1/HD WIL 75

L1/S WIL 100

L1/HD WIL 100

L1/HD WIL 100

L1/S 75 WOL

L1/S 100 WOL

L1/S 50 WOL L1/E 50

L1/E 75

L1/E WIL50

L7/75

L1/S 110

L1/S 130

L1/S 150L8/50

L7/50

L1/S 50

L1/HD 50

L1/XHD 50

L1/S 75

L1/HD 75

L1/HD 75

L1/S 100

L1/HD 100

L1/HD 100

L1/S WIL 50

L1/HD WIL 50

L1/HD WIL 50

L1/S WIL 75

L1/HD WIL 75

L1/HD WIL 75

L1/S WIL 100

L1/HD WIL 100

L1/HD WIL 100

L1/S 75 WOL

L1/S 100 WOL

L1/S 50 WOL L1/E 50

L1/E 75

L1/E WIL50

L7/75

L1/S 110

L1/S 130

L1/S 150L8/50

L7/50

L1/S 50

L1/HD 50

L1/XHD 50

L1/S 75

L1/HD 75

L1/HD 75

L1/S 100

L1/HD 100

L1/HD 100

L1/S WIL 50

L1/HD WIL 50

L1/HD WIL 50

L1/S WIL 75

L1/HD WIL 75

L1/HD WIL 75

L1/S WIL 100

L1/HD WIL 100

L1/HD WIL 100

L1/S 75 WOL

L1/S 100 WOL

L1/S 50 WOL L1/E 50

L1/E 75

L1/E WIL50

L7/75

L1/S 110

L1/S 130

L1/S 150L8/50

L7/50

L1/S 50

L1/HD 50

L1/XHD 50

L1/S 75

L1/HD 75

L1/HD 75

L1/S 100

L1/HD 100

L1/HD 100

L1/S WIL 50

L1/HD WIL 50

L1/HD WIL 50

L1/S WIL 75

L1/HD WIL 75

L1/HD WIL 75

L1/S WIL 100

L1/HD WIL 100

L1/HD WIL 100

L1/S 75 WOL

L1/S 100 WOL

L1/S 50 WOL L1/E 50

L1/E 75

L1/E WIL50

L7/75

L1/S 110

L1/S 130

L1/S 150L8/50

L7/50

L1/S 50

L1/HD 50

L1/XHD 50

L1/S 75

L1/HD 75

L1/HD 75

L1/S 100

L1/HD 100

L1/HD 100

L1/S WIL 50

L1/HD WIL 50

L1/HD WIL 50

L1/S WIL 75

L1/HD WIL 75

L1/HD WIL 75

L1/S WIL 100

L1/HD WIL 100

L1/HD WIL 100

L1/S 75 WOL

L1/S 100 WOL

L1/S 50 WOL L1/E 50

L1/E 75

L1/E WIL50

L7/75

L1/S 110

L1/S 130

L1/S 150L8/50

L7/50

L1/S 50

L1/HD 50

L1/XHD 50

L1/S 75

L1/HD 75

L1/HD 75

L1/S 100

L1/HD 100

L1/HD 100

L1/S WIL 50

L1/HD WIL 50

L1/HD WIL 50

L1/S WIL 75

L1/HD WIL 75

L1/HD WIL 75

L1/S WIL 100

L1/HD WIL 100

L1/HD WIL 100

L1/S 75 WOL

L1/S 100 WOL

L1/S 50 WOL L1/E 50

L1/E 75

L1/E WIL50

L7/75

L1/S 110

L1/S 130

L1/S 150L8/50

L7/50

L1/S 50

L1/HD 50

L1/XHD 50

L1/S 75

L1/HD 75

L1/HD 75

L1/S 100

L1/HD 100

L1/HD 100

L1/S WIL 50

L1/HD WIL 50

L1/HD WIL 50

L1/S WIL 75

L1/HD WIL 75

L1/HD WIL 75

L1/S WIL 100

L1/HD WIL 100

L1/HD WIL 100

L1/S 75 WOL

L1/S 100 WOL

L1/S 50 WOL L1/E 50

L1/E 75

L1/E WIL50

L7/75

L1/S 110

L1/S 130

L1/S 150L8/50

L7/50

L1/S 50

L1/HD 50

L1/XHD 50

L1/S 75

L1/HD 75

L1/HD 75

L1/S 100

L1/HD 100

L1/HD 100

L1/S WIL 50

L1/HD WIL 50

L1/HD WIL 50

L1/S WIL 75

L1/HD WIL 75

L1/HD WIL 75

L1/S WIL 100

L1/HD WIL 100

L1/HD WIL 100

L1/S 75 WOL

L1/S 100 WOL

L1/S 50 WOL L1/E 50

L1/E 75

L1/E WIL50

L7/75

L1/S 110

L1/S 130

L1/S 150L8/50

L7/50

L1/S 50

L1/HD 50

L1/XHD 50

L1/S 75

L1/HD 75

L1/HD 75

L1/S 100

L1/HD 100

L1/HD 100

L1/S WIL 50

L1/HD WIL 50

L1/HD WIL 50

L1/S WIL 75

L1/HD WIL 75

L1/HD WIL 75

L1/S WIL 100

L1/HD WIL 100

L1/HD WIL 100

L1/S 75 WOL

L1/S 100 WOL

L1/S 50 WOL L1/E 50

L1/E 75

L1/E WIL50

L7/75

L1/S 110

L1/S 130

L1/S 150L8/50

L7/50

L1/S 50

L1/HD 50

L1/XHD 50

L1/S 75

L1/HD 75

L1/HD 75

L1/S 100

L1/HD 100

L1/HD 100

L1/S WIL 50

L1/HD WIL 50

L1/HD WIL 50

L1/S WIL 75

L1/HD WIL 75

L1/HD WIL 75

L1/S WIL 100

L1/HD WIL 100

L1/HD WIL 100

L1/S 75 WOL

L1/S 100 WOL

L1/S 50 WOL L1/E 50

L1/E 75

L1/E WIL50

L7/75

L1/S 110

L1/S 130

L1/S 150L8/50

L7/50

L1/S 50

L1/HD 50

L1/XHD 50

L1/S 75

L1/HD 75

L1/HD 75

L1/S 100

L1/HD 100

L1/HD 100

L1/S WIL 50

L1/HD WIL 50

L1/HD WIL 50

L1/S WIL 75

L1/HD WIL 75

L1/HD WIL 75

L1/S WIL 100

L1/HD WIL 100

L1/HD WIL 100

L1/S 75 WOL

L1/S 100 WOL

L1/S 50 WOL L1/E 50

L1/E 75

L1/E WIL50

L7/75

L1/S 110

L1/S 130

L1/S 150L8/50

L7/50

L1/S 50

L1/HD 50

L1/XHD 50

L1/S 75

L1/HD 75

L1/HD 75

L1/S 100

L1/HD 100

L1/HD 100

L1/S WIL 50

L1/HD WIL 50

L1/HD WIL 50

L1/S WIL 75

L1/HD WIL 75

L1/HD WIL 75

L1/S WIL 100

L1/HD WIL 100

L1/HD WIL 100

L1/S 75 WOL

L1/S 100 WOL

L1/S 50 WOL L1/E 50

L1/E 75

L1/E WIL50

L7/75

L1/S 110

L1/S 130

L1/S 150L8/50

L7/50

L1/S 50

L1/HD 50

L1/XHD 50

L1/S 75

L1/HD 75

L1/HD 75

L1/S 100

L1/HD 100

L1/HD 100

L1/S WIL 50

L1/HD WIL 50

L1/HD WIL 50

L1/S WIL 75

L1/HD WIL 75

L1/HD WIL 75

L1/S WIL 100

L1/HD WIL 100

L1/HD WIL 100

L1/S 75 WOL

L1/S 100 WOL

L1/S 50 WOL L1/E 50

L1/E 75

L1/E WIL50

L7/75

L1/S 110

L1/S 130

L1/S 150L8/50

L7/50

L1/S 50

L1/HD 50

L1/XHD 50

L1/S 75

L1/HD 75

L1/HD 75

L1/S 100

L1/HD 100

L1/HD 100

L1/S WIL 50

L1/HD WIL 50

L1/HD WIL 50

L1/S WIL 75

L1/HD WIL 75

L1/HD WIL 75

L1/S WIL 100

L1/HD WIL 100

L1/HD WIL 100

L1/S 75 WOL

L1/S 100 WOL

L1/S 50 WOL L1/E 50

L1/E 75

L1/E WIL50

L7/75

L1/S 110

L1/S 130

L1/S 150L8/50

L7/50

L1/S 50

L1/HD 50

L1/XHD 50

L1/S 75

L1/HD 75

L1/HD 75

L1/S 100

L1/HD 100

L1/HD 100

L1/S WIL 50

L1/HD WIL 50

L1/HD WIL 50

L1/S WIL 75

L1/HD WIL 75

L1/HD WIL 75

L1/S WIL 100

L1/HD WIL 100

L1/HD WIL 100

L1/S 75 WOL

L1/S 100 WOL

L1/S 50 WOL L1/E 50

L1/E 75

L1/E WIL50

L7/75

L1/S 110

L1/S 130

L1/S 150L8/50

L7/50

L5

L5/75L6/75

L5/50

L5/75

L6

L6/100 L5/100

L6/100

L5

L5/75L6/75

L5/50

L5/75

L6

L6/100 L5/100

L6/75

L5

L5/75L6/75

L5/50

L5/75

L6

L6/100 L5/100L6/75

L1/S 50

L1/HD 50

L1/XHD 50

L1/S 75

L1/HD 75

L1/HD 75

L1/S 100

L1/HD 100

L1/HD 100

L1/S WIL 50

L1/HD WIL 50

L1/HD WIL 50

L1/S WIL 75

L1/HD WIL 75

L1/HD WIL 75

L1/S WIL 100

L1/HD WIL 100

L1/HD WIL 100

L1/S 75 WOL

L1/S 100 WOL

L1/S 50 WOL L1/E 50

L1/E 75

L1/E WIL50

L7/75

L1/S 110

L1/S 130

L1/S 150L8/50

L7/50

L1/S 50

L1/HD 50

L1/XHD 50

L1/S 75

L1/HD 75

L1/HD 75

L1/S 100

L1/HD 100

L1/HD 100

L1/S WIL 50

L1/HD WIL 50

L1/HD WIL 50

L1/S WIL 75

L1/HD WIL 75

L1/HD WIL 75

L1/S WIL 100

L1/HD WIL 100

L1/HD WIL 100

L1/S 75 WOL

L1/S 100 WOL

L1/S 50 WOL L1/E 50

L1/E 75

L1/E WIL50

L7/75

L1/S 110

L1/S 130

L1/S 150L8/50

L7/50

L1/S 50

L1/HD 50

L1/XHD 50

L1/S 75

L1/HD 75

L1/HD 75

L1/S 100

L1/HD 100

L1/HD 100

L1/S WIL 50

L1/HD WIL 50

L1/HD WIL 50

L1/S WIL 75

L1/HD WIL 75

L1/HD WIL 75

L1/S WIL 100

L1/HD WIL 100

L1/HD WIL 100

L1/S 75 WOL

L1/S 100 WOL

L1/S 50 WOL L1/E 50

L1/E 75

L1/E WIL50

L7/75

L1/S 110

L1/S 130

L1/S 150L8/50

L7/50

L1/S 50

L1/HD 50

L1/XHD 50

L1/S 75

L1/HD 75

L1/HD 75

L1/S 100

L1/HD 100

L1/HD 100

L1/S WIL 50

L1/HD WIL 50

L1/HD WIL 50

L1/S WIL 75

L1/HD WIL 75

L1/HD WIL 75

L1/S WIL 100

L1/HD WIL 100

L1/HD WIL 100

L1/S 75 WOL

L1/S 100 WOL

L1/S 50 WOL L1/E 50

L1/E 75

L1/E WIL50

L7/75

L1/S 110

L1/S 130

L1/S 150L8/50

L7/50

TIM

BER

FR

AME

CON

CRET

E IN

NER

L1/S 50

L1/HD 50

L1/XHD 50

L1/S 75

L1/HD 75

L1/HD 75

L1/S 100

L1/HD 100

L1/HD 100

L1/S WIL 50

L1/HD WIL 50

L1/HD WIL 50

L1/S WIL 75

L1/HD WIL 75

L1/HD WIL 75

L1/S WIL 100

L1/HD WIL 100

L1/HD WIL 100

L1/S 75 WOL

L1/S 100 WOL

L1/S 50 WOL L1/E 50

L1/E 75

L1/E WIL50

L7/75

L1/S 110

L1/S 130

L1/S 150L8/50

L7/50

Standard

Standard

TYPE LOAD 110 CAVITY 130 CAVITY 150 CAVITY

The tables on these pages provide the specifier with a quick

guide to IG’s range of steel lintels.

Lintels are identified by type, loading characteristics and cavity

widths with reference to the appropriate page for full details.

Before consulting tabular information, specifiers are advised

to read the Technical Information pages 33-35 to verify

that properties and installation of IG steel lintels meet the

requirements of intended usage.

Standard

Heavy

Duty

Extra

Heavy

Duty

Standard

Heavy

Duty

Extra

Heavy

Duty

Standard

Standard

Heavy

Duty

Extra

Heavy

Duty

CAVITY WALL LINTELS

PRODUCT GUIDE

TYPE LOAD 50-70 CAVITY 70-95 CAVITY 95-110 CAVITY

MITRED LINTEL Page 31

ARCHES Page 28

6

Cavity Wall LintelsThe L1 Profile

7

L1 type lintels have a ‘top hat’ profile which offers distinctadvantages in terms of durability and structural characteristicsincluding:

The maintenance of the integrity of the wall structure and itsthermal properties through uniform and continuous bricklaying -the upstand of the lintel sits within the cavity;

Excellent thermal efficiency as a direct result of its design which,with the addition of an expanded polystyrene infill (standard onallL1 lintels), provides a ‘U’ value through the lintel ofsignificantly less than 0.33 W/m2 K;

Reduced maintenance costs through the elimination of crackedplaster due to the differential expansion of dissimilar materialsassociated with Box section lintels.

Semi-pierced slots on the inner flange give an excellent key for theplaster finish.

Expandedpolystyrene

Easy curtainbracket fixing.No battenrequired

Indentedflange forplaster key

Plaster keyacross cavity

dpc

SINGLE WALL Page 23 INTERNAL Page 27BOX LINTELS Page 24-25

NON-CAVITY WALL LINTELS

6644 && 110000LL99 LL1100 LL1111 BBOOXX 7755 BBOOXX 110000 BBOOXX 114400 BBOOXX 220000

SPECIAL LINTELS Pages 29-32

LINTEL SOFFIT CLADDING

UNIVERSAL ARCHES

RADIUS PLAN LINTEL Page 32ARCH LINTEL Page 30

L8/50

L7/50

L10 L11

L11L9

L8/50

L7/50

L10 L11

L11L9

L8/50

L7/50

L10 L11

L11L9

Where lintel requirements cannot be met from the standard range, please refer to our Special Lintels Service on page 29.

SOFFIT CLADDING Page 28 CAVITY TRAYS Page 36

STAINLESS STEEL LINTELS

CAVITY TRAYS

STAINLESS STEEL LINTELS Page 29

High PerformanceLintels for harshenvironments

A uniquesingle elementcavity tray system

C A V I T Y W A L L L I N T E L S 70-95 mmC A V I T Y

8

L1/S 75

L1/HD 75

L1/HD 75

‘h’ nominal

1006895

Height ‘h’ 98 89 106 130 142 168 204 204 204

Thickness ‘t’ 1.6 1.8 2 2 2 2.5 2.9 2.9 3.2

Total UDL(kN) Load ratio (1) 12 14 18 21 21 27 27 26 27

Total UDL(kN) Load ratio (2) 10 12 14 17 19 22 20 19 22

LL11//SS 7755 Manufactured Length 0600 1350 1650 1950 2250 2550 3150 3750 4200150mm increments 1200 1500 1800 2100 2400 3000 3600 4050 4800

For 70-95mm cavity wallconstruction.Standard duty loading condition.

Height ‘h’ 103 117 167 205 205 205 205

Thickness ‘t’ 2.9 2.9 2.9 3.2 3.2 3.2 3.2

Total UDL(kN) Load ratio (1) 30 30 40 40 40 35 33


LL11//HHDD 7755 Manufactured Length 0600 1350 1650 2250 2700 3150 3750150mm increments 1200 1500 2100 2550 3000 3600 4200

For 70-95mm cavity wallconstruction.Heavy duty loading condition.L1/S 75

L1/HD 75

L1/HD 75

‘h’ nominal

1006895

Height ‘h’ 167 167 205

Thickness ‘t’ 3.2 3.2 3.2

Total UDL(kN) Load ratio (1) 50 50 55


LL11//XXHHDD 7755 Manufactured Length 0600 1650 1950150mm increments 1500 1800 2100

Load Ratio - see Structural Performance on page 33.

For 70-95mm cavity wallconstruction.Extra heavy duty loading condition.

L1/S 75

L1/HD 75

L1/HD 75

‘h’ nominal

1006895

9

50-70 mmC A V I T Y

C A V I T Y W A L L L I N T E L S

L1/S 50

L1/HD 50

L1/XHD 50

Height ‘h’ 79 98 110 134 150 172 172 209 209 209

Thickness ‘t’ 1.6 1.8 2 2 2 2 2.5 2.9 2.9 3.2

Total UDL (kN) Load ratio (1) 12 14 19 21 21 26 27 27 26 27

Total UDL (kN) Load ratio (2) 10 12 16 17 19 22 20 20 19 22

LL11//SS 5500 Manufactured Length 0600 1350 1650 1950 2250 2550 2850 3150 3750 4200150mm increments 1200 1500 1800 2100 2400 2700 3000 3600 4050 4800


‘h’ nominal

1004895


For 50-70mm cavity wallconstruction.Heavy duty loading condition.

L1/S 50

L1/HD 50

L1/XHD 50

1004895

‘h’ nominal

Height ‘h’ 171 171 209


Total UDL (kN) Load ratio (1) 50 50 55

Total UDL (kN) Load ratio (2) 45 45 45




L1/S 50

L1/HD 50

L1/XHD 50

1004895

‘h’ nominal

Height ‘h’ 105 121 171 209 209 209 209

Thickness ‘t’ 2.9 2.9 2.9 3.2 3.2 3.2 3.2

Total UDL (kN) Load ratio (1) 30 30 40 40 40 35 33

Total UDL (kN) Load ratio (2) 22 22 35 35 35 32 28

All above Lintels have continuous bottom plates. All above Lintels have continuous bottom plates.

All above Lintels have continuous bottom plates. Heavy duty and Wider Inner Leaf variants available.

C A V I T Y W A L L L I N T E L S 110-150 mmC A V I T Y

1110

Height ‘h’ 95 121 145 195 195 195

Thickness ‘t’ 2 2 2.5 2.9 3.2 3.2

Total UDL(kN) Load ratio (1) 16 22 24 27 26 25


LL11//SS 111100 Manufactured Length 0600 1650 1950 2250 3150 4200150mm increments 1500 1800 2100 3000 4050 4800


Height ‘h’ 103 128 190 190 190 190

Thickness ‘t’ 2 2 2.5 2.9 3.2 3.2





Height ‘h’ 100 125 180 180 180 180

Thickness ‘t’ 2 2 2.5 2.9 3.2 3.2






‘h’

nominal

10010895

‘h’

nominal

10012895

‘h’

nominal

10014895

95-110 mmC A V I T Y

C A V I T Y W A L L L I N T E L S

Height ‘h’ 88 88 107 125 150 162 171 200 200 200

Thickness ‘t’ 1.6 1.8 2 2 2 2.5 2.5 2.9 2.9 3.2

Total UDL(kN) Load ratio (1) 12 16 19 21 23 27 27 27 26 27

Total UDL(kN) Load ratio (2) 10 13 16 17 18 22 20 20 19 22

LL11//SS 110000 Manufactured Length 0600 1350 1650 1950 2250 2550 2850 3150 3750 4200150mm increments 1200 1500 1800 2100 2400 2700 3000 3600 4050 4800


Height ‘h’ 110 135 163 203 203 203 203

Thickness ‘t’ 2.9 2.9 2.9 3.2 3.2 3.2 3.2





Height ‘h’ 163 163 203







L1/S 100

L1/HD 100

L1/HD 100

1008895

L1/S 100

L1/HD 100

L1/HD 100

L1/S 100

L1/HD 100

L1/HD 100

‘h’nominal

1008895

1008895

‘h’nominal

‘h’nominal

All above Lintels have continuous bottom plates.

All above Lintels have continuous bottom plates. All above Lintels have continuous bottom plates.

W I D E I N N E R L E A F

1312

L1/S WIL 75

L1/HD WIL 75

L1/HD WIL 75

1256895

Height ‘h’ 101 90 110 134 158 167 192 192

Thickness ‘t’ 2 2 2 2 2 2.5 3.2 3.2

Total UDL(kN) Load ratio (1) 12 13 20 19 24 27 30 27

Total UDL(kN) Load ratio (2) 10 11 17 17 20 21 26 25

LL11//SS WWIILL 7755 Manufactured Length 0600 1500 1950 2250 2550 3150 3750150mm increments 1350 1650 1800 2100 2400 3000 3600 4200

For 70-95mm cavity wallwith wide inner block/brick construction.Standard duty loading condition.

L1/S WIL 75

L1/HD WIL 75

L1/HD WIL 75

1256895

Height ‘h’ 130 155 192 192

Thickness ‘t’ 2.9 2.9 2.9 3.2

Total UDL(kN) Load ratio (1) 20 25 30 36


LL11//HHDD WWIILL 7755 Manufactured Length 0600 135 0 1950 2250150mm increments 1200 1800 2100 2700

For 70-95mm cavity wallwith wide inner block/brick construction.Heavy duty loading condition.

L1/S WIL 75

L1/HD WIL 75

L1/HD WIL 75

1256895

Height ‘h’ 157 192 192




LL11//XXHHDD WWIILL 7755 Manufactured Length 0600 1650 1950150mm increments 1500 1800 2100


For 70-95mm cavity wallwith wide inner block/brick construction.Extra heavy duty loading condition.

70-95 mmC A V I T Y

‘h’nominal

‘h’nominal

‘h’nominal

Height ‘h’ 96 110 136 162 172 196 196

Thickness ‘t’ 2 2 2 2 2.5 3.2 3.2



LL11//SS WWIILL 5500 Manufactured Length 0600 1650 1950 2250 2550 3150 3750150mm increments 1500 1800 2100 2400 3000 3600 4200


L1/S WIL 50

L1/HD WIL 50

L1/HD WIL 50

1254895

Height ‘h’ 95 109 161 161 200

Thickness ‘t’ 2.9 2.9 2.9 2.9 3.2

Total UDL(kN) Load ratio (1) 20 25 35 30 36

Total UDL(kN) Load ratio (2) 17 22 27 25 32

LL11//HHDD WWIILL 5500 Manufactured Length 0600 1350 1650 1950 2250150mm increments 1200 1500 1800 2100 2700

For 50-70mm cavity wallconstruction.Heavy duty loading condition.L1/S WIL 50

L1/HD WIL 50

L1/HD WIL 50

1254895

Height ‘h’ 161 196 196







L1/S WIL 50

L1/HD WIL 50

L1/HD WIL 50

1254895

‘h’nominal

‘h’nominal

‘h’nominal

W I D E I N N E R L E A F 50-70 mmC A V I T Y

W I D E O U T E R L E A F 50-110 mmC A V I T Y

14

Height ‘h’ 93 110 162 200 200 200

Thickness ‘t’ 2.5 2.5 2.5 2.9 3.2 3.2



LL11//SS WWOOLL 5500 Manufactured Length 0600 1500 1800 2250 2850 3150150mm increments 1350 1650 2100 2700 3000 3600

For 50-70mm cavity wallconstruction with wide outermasonry.Standard duty loading.

L1/S 75 WOL

L1/S 100 WOL

L1/S 50 WOL

10048125

150 max

L1/S 75 WOL

L1/S 100 WOL

L1/S 50 WOL

10088125

150 max

Height ‘h’ 93 110 162 200 200 200

Thickness ‘t’ 2.5 2.5 2.5 2.9 3.2 3.2





L1/S 75 WOL

L1/S 100 WOL

L1/S 50 WOL

10068125

150 max

Height ‘h’ 93 110 162 200 200 200

Thickness ‘t’ 2.5 2.5 2.5 2.9 3.2 3.2






‘h’nominal

‘h’nominal

‘h’nominal

All above Lintels have continuous bottom plates. Heavy duty and Wider Inner Leaf variants available.

15

95-110 mmC A V I T Y

W I D E I N N E R L E A F

Height ‘h’ 92 107 150 177 188 188

Thickness ‘t’ 2 2 2 2.5 3.2 3.2



LL11//SS WWIILL 110000 Manufactured Length 0600 1350 1950 2550 3150 3750150mm increments 1200 1800 2400 3000 3600 4200

For 95-110mm cavity wallwith wide inner block/brick construction.Standard duty loading condition.

1258895

Height ‘h’ 113 150 188 188

Thickness ‘t’ 2.9 2.9 2.9 3.2



LL11//HHDD WWIILL 110000 Manufactured Length 0600 1500 1950 2250150mm increments 1350 1800 2100 2700

For 95-110mm cavity wallwith wide inner block/brick construction.Heavy duty loading condition.

1258895

Height ‘h’ 165 188 188






For 95-110mm cavity wallwith wide inner block/brick construction.Extra heavy duty loading condition.

1258895

‘h’nominal

‘h’nominal

‘h’nominal


L1/E lintels are designed to provide support over

openings at eaves level.

To achieve the loading figures indicated on the

opposite page, the lintel must be built in with the

blockwork as shown, and a continuous wall plate

must be provided over the opening and reveals.

The loading figures are achieved by using composite

action of the inner leaf blockwork.

Providing the maximum cavity width for the

appropriate lintel is maintained the outer flange

will have a brickwork bearing of 13mm.

The lintels must be ‘built in’ with the blockwork

positioned against the upstand of the lintel

together with a continuous wall plate as shown.

L1/E Eaves Lintels

L 1 / E - S T A N D A R D A N D I N N E R L E A F 50-100 mmC A V I T Y

1716

Expandedpolystyrene

Easy curtainbracket fixing.No battenrequired

Indentedplaster key

Plaster keyacross cavity

Height ‘h’ 95 134 150 150

Thickness ‘t’ 2 2 2 2.5

Total UDL(kN) 18 20 22 25

Note: Maximum block dimensions 125mm (80mm cavity)

LL11//EE 5500 Manufactured Length 0600 1650 2250 2550150mm increments 1500 2100 2400 2700

For 50-80mm (max) cavity wallconstruction. For use at eaveslevel. Composite beam withblockwork

L1/E 50

L1/E 75

L1/E WIL50

‘h’ nominal

1004845

Height ‘h’ 95 134 150 150

Thickness ‘t’ 2 2 2 2.5



LL11//EE 7755 Manufactured Length 0600 1650 2250 2550150mm increments 1500 2100 2400 2700

For 70-100mm (max) cavity wallconstruction. For use at eaveslevel. Composite beam withblockwork

Height ‘h’ 91 136 136 150

Thickness ‘t’ 2 2 2.5 2.5



LL11//EE WWIILL 5500 Manufactured Length 0600 1650 2250 2550150mm increments 1500 2100 2400 2700


For 50-80mm (max) cavity wallconstruction. For use at eaveslevel. Composite beam with wideinner leaf blockwork

L1/E 50

L1/E 75

L1/E WIL50

1254845

‘h’ nominal

L1/E 50

L1/E 75

L1/E WIL50

1006845

‘h’ nominal


Height ‘h’ 229 229 229 229 229

Thickness ‘t’ 2.9 2.9 2.9 3.2 3.2

Total UDL(kN) Load ratio 19:1 70 60 50 45 40


LL55//7755 Manufactured Length 0600 1650 2250 3150 4200150mm increments 1500 2100 3000 4050 4800


L5

L5/75L6/75

L5/50

L5/75

L6

L6/100 L5/100

1006895

Height ‘h’ 229 229 229 229 229

Thickness ‘t’ 2.9 2.9 2.9 3.2 3.2





L5

L5/75L6/75

L5/50

L5/75

L6

L6/100 L5/100

1004895

Height ‘h’ 229 229 229 229 229

Thickness ‘t’ 2.9 2.9 2.9 3.2 3.2






Extra Heavy Duty Lintels50-110 mmC A V I T YHeavy Duty Lintels 50-110 mm

C A V I T Y

1918

End bearing 200 200 200 200 200 200

Total allowable UDL (kN) 86 75 70 65 60 55

Note: Maximum block dimensions 125mm positioned flush with inner face of Universal Beam (70mm cavity)

LL66//7755 Manufactured Length 0600 5200 5400 5800 6200 6600150mm increments 4800

For large span 70-90mm cavity wallconstruction.Extra heavy duty loading condition.

End bearing 200 200 200 200 200 200




For large span 50-70mm cavity wallconstruction.Extra heavy duty loading condition.

End bearing 200 200 200 200 200 200




For large span 95-110mm cavity wall construction.Extra heavy duty loading condition.

L6/75

L6/75

L6/100

‘h’ nominal

‘h’ nominal

L5

L5/75L6/75

L5/50

L5/75

L6

L6/100 L5/100

1008895

‘h’ nominal

All above Lintels have continuous bottom plates. Heavy duty variants available.

207

245

207

265

207

285

Manufactured from a 203 x 133 x 30kg/m Universal Beam, with external galvanised outer flange and galvanised base plate.



Designed for use in timber frame construction, theL7 lintel provides support to the outer leaf tobrickwork over openings.

To achieve the loading figures shown, the L7 lintelmust be secured with restraining clips and a block/batten (not supplied) must be used to preventlateral deflection (twist) during the building stage.A single block/batten 300mm long at mid span willbe sufficient. Restraining clips should be fixed with3.3 x 50mm galvanised nails at no more than 500mmcentres each side of mid span.

Clips should be positioned with their vertical centresat the top of the lintel to allow for lintel movementand shrinkage of timber frame.

Timber Frame Lintels

L 7 - T I M B E R F R A M E

L 8 - C O N C R E T E I N N E R L I N T E L

2120

Retaining clipdpc

38mmtimberblock (notsupplied)

Height ‘h’ 110 110 135 185 250

Thickness ‘t’ 2.0 2.5 2.5 2.8 3.0

Total Allowable UDL (kN) 4 5 5 9 12


Heavy duty and wider cavity variants available.

For 45-55mm cavity timber frameconstruction. Wider or narrowercavity lintels are available but notstocked. Information on request.

L8/50

L7/50

L10 L11

L11 L9

‘h’ nominal

40

2523

95

Height ‘h’ 150 225 225 225

Thickness ‘t’ 2.5 2.5 2.9 3.2

Total Allowable UDL (kN) 7 8 10 12

Note; When specifying check height dimensions

LL88//5500 Manufactured Length 0600 2250 2550 3150150mm increments 2100 2400 3000 4800

Wider cavity variants available.

For 50-65mm cavity wallconstruction. For use with concretelintels. Wider or narrower cavitylintels are available but not stocked.Information on request.

L8/50

L7/50

L10 L11

L11 L9

404895

50-65 mmC A V I T Y

‘h’ nominal

L 7 - T I M B E R F R A M E

Height ‘h’ 165 165 240 315

Thickness ‘t’ 2.0 2.5 3.0 3.0


LL77//7755 Manufactured Length 0600 1950 2550 3750150mm increments 1800 2400 3600 4800

Wider cavity variants available.

For 70-85mm cavity timber frameconstruction. Wider or narrowercavity lintels are available but notstocked. Information on request.

L8/50

L7/50

L10 L11

L11 L9

6895

70-85 mmC A V I T Y

45-55 mmC A V I T Y

‘h’ nominal

2540

IG Single Wall Lintels are for the support of loadsfrom half-brick to full brick widths in solid brick orblock wall construction.

The L9 Lintel allows the face of brickwork to showon both sides of an opening in a full brick-wide wall.

Meter Box Lintel, L10 and L11 lintels allow theface of the brickwork to show on one side of anopening in half-brick wide constructions.

Meter Box Lintel lengths from 750-1350mm inincrements of 150mm.

Single skin lintels should always be propped.NHBC guidelines propose no greater than a 1m spanfor props during construction.

Single Wall Lintels

S I N G L E W A L L L I N T E L S

2322

Face brickwork

L10 lintel

Architrave

Door lining

Door stop

Door

Height ‘h’ 60 110 210 210

Thickness ‘t’ 3.0 3.0 2.8 3.0


Note: This Lintel must be propped during construction.

LL1100 Manufactured Length 0600 1350 1950 2850150mm increments 1200 1800 2700 3000

For use with single 102mm brickwork wall construction.Light duty loading condition.

L8/50

L7/50

L10 L11

L11 L9

95

‘h’ nominal

Height ‘h’ 150 225 225 225

Thickness ‘t’ 2.5 2.5 2.9 3.2




To achieve loading figures indicated, lintel must be built-in with brickwork/blockwork as shown. In addition, it must be suitably restrainedduring construction. Heavier duty variants available.

For use with single leaf face brickor block wall.

L8/50

L7/50

L10 L11

L11 L9

150

95

L8/50

L7/50

L10 L11

L11 L9

225

95

Height ‘h’ 55 86 86 113

Thickness ‘t’ 2.5 2.5 2.9 3.2




For use with solid brick or blockwall construction.Light duty loading condition.

L8/50

L7/50

L10 L11

L11 L9

‘h’ nominal

200

Heavy duty and wider masonry variants available.



Box lintels are designed foruse over internal or externalopenings, or when tile hangingis required with solid brick orblock wall construction, or ateaves level.

Box Lintels

B O X L I N T E L S - S T A N D A R D

2524

75-215 mmB L O C K W O R K

95

Height ‘h’ 75mm wide 100 100Height ‘h’ 100mm wide 75 75

Thickness ‘t’ 1.6 2.0

Total allowable UDL (kN) 15 10

BBOOXX 7755 Manufactured Length 0600150mm increments 1650 1800

For internal openings,75 blockwork or100 blockwork.

95

Height ‘h’ 75 150 150 150 215 215 215

Thickness ‘t’ 2 1.6 2 2 2.5 2.5 2.5

Total allowable UDL (kN) 18 18 25 20 30 25 20

BBOOXX 110000 Manufactured Length 0600 1650 1950 2550 2850 3750 4350150mm increments 1500 1800 2400 2700 3600 4200 4800

For internal openings, eaves or100 block and tile hanging.

200

‘h’ nominal

Height ‘h’ 150 150 150 150 215 215 215

Thickness ‘t’ 1.6 2 2 2 2.5 2.5 2.5

Total allowable UDL (kN) 15 30 25 20 35 30 25

BBOOXX 114400 Manufactured Length 0600 1650 2250 2550 2850 3750 4350150mm increments 1500 2100 2400 2700 3600 4200 4800

For internal openings, eaves or140/150 block and tile hanging.

‘h’ nominal

145

Height ‘h’ 150 150 150 215 215 215

Thickness ‘t’ 1.6 2 2 2.5 2.5 2.5


BBOOXX 220000 Manufactured Length 0600 1950 2550 2850 3750 4350150mm increments 1800 2400 2700 3600 4200 4800


Care should be taken to avoid shock loading when used with concrete floor or other heavy units.Insulation available at extra cost.

NOTE: The Flange of the Box 200 (or HD Box 200) is designed to support a nominal masonry load only, up to a maximum of 3kN/m run.

75

Perforated steel for plaster key

75

‘h’ nominal

95




100-215 mmB L O C K W O R K

B O X L I N T E L S - H E A V Y D U T Y

26

Height ‘h’ 150 150 215


Total allowable UDL (kN) 50 45 40

HHDD BBOOXX 114400 Manufactured Length 0600 1350 1950150mm increments 1200 1800 2700

For internal openings, eaves or140/150 block and tile hanging.

‘h’ nominal

145

Height ‘h’ 150 150 215




In some circumstances these lintels may have an expanded metal lathing attached and may differ from the diagram shown.

Care should be taken to avoid shock loading when used with concrete floor or other heavy units.Insulation available at extra cost

NOTE: The Flange of the Box 200 (or HD Box 200) is designed to support a nominal masonry load only, up to a maximum of 3kN/m run.


‘h’ nominal

‘h’ nominal

95

Height ‘h’ 150 150 215





Designed to provide a quick and safemethod of spanning small openings(up to 1000mm) in internal walls, IGinternal lintels are both economicaland easy to store, carry and use.

When a minimum height of 152mm ofbrick/blockwork with well-filled jointsof cement mortar is built over the lintel,the construction will be load-bearingfor normal domestic building purposesafter curing. The loading capacity of thelintel can be increased by increasingthe height of the walling built across it.

Internal Lintels64 & 100

27

900 700 64 - 5

1050 850 64 - 5

1100 900 64 - 5

1200 1000 64 - 5

900 700 100 5 7

1050 850 100 5 7

1100 900 100 5 7

1200 1000 100 5 7

Safe Safe Overall Maximum Width of distributed distributed

Length of span of IG Lintel loading with loading withIG Lintel opening unit 152mm coursing 229mm coursing

of 100mm thick of 75/100mm thick walling above walling above

lintel unit lintel unit

IINNTTEERRNNAALL 6644 && 110000

INT

100

(G79

0)IN

T 64

(G78

0)CA

D C

OD

ES

RenderingPlaster facing

28

Door stopstopDoor

Door liner

Architrave

100mm lintel

100



200


28

Stainless Steel LintelsHigh Performance for harsh environments

29

Special Lintel Enquiry Fax BackPlease complete and fax back the form overleaf...

IG’s Special Lintel Service is the product of awide experience in successfully meeting theneeds of architects of both domestic andcommercial buildings. It embraces everyaspect of lintel design and supply, fromcalculation of shape, size and loading to co-ordination with construction schedulingand consideration of budgetaryrequirement. IG’s ultimate aim is to providethe most cost-effective design solution tospecial lintel problems.

In order to best utilise this free service,please ensure that all relevant details areprovided i.e. wall construction (outer leaf,cavity, inner leaf), clear spans, arch rise,radius and any other factor which mayaffect the special lintel design and costing.

When loading figures are not available, thenplease provide a full set of drawingsincluding:

(a) plans(b) elevations(c) sections(d) wall construction(e) floor construction and direction

This information will enable our designengineers to calculate the relevant loadings.

Information can be sent directly to theTechnical Department by email: [email protected] or by fax back on 01633 486495.

• IG standard lintels are available in stainless steel.

• Outstanding durability through austenitic chromium nickel steelto BS EN 10088-2 1.4301 (304S15) .

• Suitable for use in coastal and industrial environments.

• All IG galvanised steel loading tables apply.

Lintel Soffit Cladding

Universal Arch

Manufactured from rigid PVC to match UPVC window frames, the IG lintel soffitcladding is designed to clip over the front flange of the external wall lintel to providean aesthetically pleasing appearance to the exposed outer flange.

Supplied in white (type SCW) and brown (type SCB), soffit cladding is available inlengths to meet all standard openings, for example a 1500 mm length is available tofit a structural opening width of 1200 mm. The cladding simply clips into place - nospecial tools are required.

Note: When soffit cladding is used, external wall lintels must be installed with aflexible damp proof course (DPC) which must project beyond the front face of thecladding.

109mm

450-500 475 75 IGAR 475 IGAR 75600-650 625 75 IGAR 625 IGAR 75660-710 685 75 IGAR 685 IGAR 75900-950 925 75 IGAR 925 IGAR 75

1000-1050 1025 75 IGAR 1025 IGAR 751060-1110 1085 75 IGAR 1085 IGAR 751200-1250 1225 75 IGAR 1225 IGAR 751300-1350 1325 75 IGAR 1325 IGAR 751460-1510 1485 75 IGAR 1485 IGAR 751600-1650 1625 75 IGAR 1625 IGAR 751675-1725 1700 75 IGAR 1700 IGAR 751760-1810 1785 75 IGAR 1785 IGAR 751890-1940 1916 150 IGAR 1916 IGAR 1502010-2060 2035 150 IGAR 2035 IGAR 1502090-2140 2115 150 IGAR 2115 IGAR 1502250-2300 2275 150 IGAR 2275 IGAR 1502300-2350 2325 150 IGAR 2325 IGAR 1502400-2450 2425 150 IGAR 2425 IGAR 1502505-2555 2530 150 IGAR 2530 IGAR 1502700-2750 2725 150 IGAR 2725 IGAR 150

Opening Sizes Nominal Arch Rise IG Ref. CAD CodeArch Span

IG’s comprehensive range of standard lintelscovers all applications in conventionalbuilding constructions. When a buildingrequires more unconventional supportsolutions, IG has the expertise to design andmanufacture special lintels that suit allshapes and sizes. These special lintels -some of which feature below - can includeradius, natural arch, gothic arch, corner,apex, cant brick, ‘I’ beam, 200mm-wide innerleaf, feature plate and wider cavity.

When low rise arches are required inbrickwork above openings, the IG UniversalArch provides the ideal former for thebricklayer. Vacuum-formed from whitepigmented, external weathering quality,impact resistant polystyrene.

Suitable for use in cavity walls and with timberframe construction, the unit is designed to siton any steel lintel with an outer flange of90mm to 95mm. The design provides an archrise of 75mm for arch spans from 475mm to1785mm, and a rise of 150mm for arch spansfrom 1916mm to 2725mm.

30

BBAAYY LLIINNTTEELL

AAPPEEXX LLIINNTTEELL

S P E C I A L M I T R E D L I N T E L S FAX BACK

Lintel Dimensions Wall Construction Plaster Key Requirements (please tick)

(clear span) A

Important Notes:Do not allow for bearing, thiswill be added at design stage.

ELEVATION

R

C

x°

C

Dimensions Required Wall Construction Plaster Key Requirements (please tick)

BRICKREVEAL

BRICKREVEAL

A

B C

Important Notes:Do not allow for bearing, this will be added at design stage.

Dimensions Required Wall Construction Plaster Key Requirements (please tick)

BRICKREVEAL

BRICKREVEALA

B C

D

CCOORRNNEERR LLIINNTTEELL

SPECIAL MITRED LINTEL ENQUIRY FORM

Please complete all details and submit to Technical on Fax: 01633 486495. If you require further information please Tel: 01633 486461.

From: Name

Company

Tel: Fax:

Email Job reference

Clear span A mm

Rise R mm

End bearing C mm

Outer leaf mm

Cavity width mm

Inner leaf mm

Inside only

Both sides

None

A-B = mm

B-C = mm

A-C = mm

Outer leaf mm

Cavity width mm

Inner leaf mm

Inside only

Both sides

None

A-B = mm

B-C = mm

C-D = mm

Outer leaf mm

Cavity width mm

Inner leaf mm

Inside only

Both sides

None

31

RRAADDIIUUSS AARRCCHH LLIINNTTEELL

NNAATTUURRAALL AARRCCHH LLIINNTTEELL

S P E C I A L A R C H L I N T E L S FAX BACK

PPAARRAABBOOLLIICC AARRCCHH LLIINNTTEELL


(clear span) A

ELEVATION

R

C C

SPECIAL ARCH LINTEL ENQUIRY FORM



From: Name

Company

Tel: Fax:

Email Job reference

(clear span) A

ELEVATION

R

C C

Lintel Dimensions Wall Construction

(clear span) A

ELEVATION

R

C C

GGOOTTHHIICC AARRCCHH LLIINNTTEELL


(clear span) A

ELEVATION

R

C C

Clear span A mm

Rise R mm

End bearing C mm

Outer leaf mm

Cavity width mm

Inner leaf mm

Outer leaf mm

Cavity width mm

Inner leaf mm

Inside only

Both sides

None

Clear span A mm

Rise R mm

End bearing C mm

Inside only

Both sides

None

Plaster Key Requirements (please tick)

Clear span A mm

Rise R mm

End bearing C mm

Outer leaf mm

Cavity width mm

Inner leaf mm

Inside only

Both sides

None

Clear span A mm

Rise R mm

End bearing C mm

Outer leaf mm

Cavity width mm

Inner leaf mm

Inside only

Both sides

None

Special Lintels continued over page

Enquiries for Special Lintels should be faxed to: 01633 486495 Enquiries for Special Lintels should be faxed to: 01633 486495

The loading tables in this brochure are the result of testing

at the group’s premises under the supervision and direction

of the British Board of Agrèment.

All tests were carried out in accordance with

BS 5977 Part 2 1983 and BS EN 846–9:2000 and relate to

the strength and torsional stiffness of lintels to sustain total

uniformly distributed loads.

The loading tables shown for the L1 (where noted), L1/E, L5

and L11 lintels are the results of testing in accordance with

BS 5977 Part 2 1983 and BS EN 846–9:2000, taking into

account composite assistance from the surrounding

masonry, this masonry should be of good quality (in

accordance with BS 5628).

A lintel should not exceed a maximum vertical or horizontal

deflection of 1/325 x the effective span, when subject to the

safe working load.

Note:

Load ratio 1 - applies to loads with an inner to outer leaf ratio

of between 1 :1 and 3 :1. This ratio is normally applicable to

lintels that support:

a. masonry

b. masonry and timber floors

Load ratio 2 - applies to loads with an inner to outer leaf ratio

of between 4 :1 and 19:1. This ratio is normally applicable

to lintels supporting:

a. constructions with concrete floors

b. eaves applications

The L1 profile has been subjected to two fire tests by:

a. The fire research station, Boreham Wood.

b. The Warrington Fire Research Station.

In both cases one hour fire rating was achieved with the

load successfully supported 48 hours later. Further details

available on request.

The service life of lintels will be equal to the life expectancy

of the building when installed with a flexible DPC and within

the humidity and

condensation conditions normally experienced in habitable

buildings.

Lintels conform to the requirements of BS EN 845–2:2003

for corrosion protection, workmanship and materials.

IG lintels are rated by the Housing Association Property Mutual

as satisfying the ‘35 years to first maintenance’ durability

rating, laid down in the ‘HAPM Component Life Manual’.

Galvanised lintels - lintels are fabricated from galvanised

steel to BS EN 10142 1991 Specification for continually hot

dip zinc coated low carbon steel sheet and strip for cold

forming: Technical advisory conditions, grade Fe P01 G,

with a coating type Z600 giving a minimum coating weight

(triple spot test) of 600g/m2; including both sides but with

a minimum yield stress of 250 N/mm2.

Stainless steel - All IG lintels can be manufactured with

stainless steel.

Stainless steel lintels and expanded metal lathing are

formed from Austenitic Chromium Nickel Steel to

BS EN 10088-2 1.4301 (304S15) and require no additional

corrosion treatment. Higher grades of stainless steel can be

supplied on request - BS EN 10088-2 1.4401 (316S31).

For the lintels to perform to the quoted loading figures and to

meet the durability expectations included in this brochure,

the following information MUST be adhered to:

1. Lintels damaged in transit should not be used.

2. Check the correct lintel is being installed.

3. All bearing areas should be prepared using full

bricks/blocks or padstones.

4. Lintels should be installed with a minimum 150mm end

bearing at both ends, be fully bedded on bricklaying

mortar and levelled both longitudinally and horizontally.

When limited end bearings are unavoidable, check with

IG technical office for suitability.

5. Open back lintels should be filled with masonry in

accordance with BS 5977 and a full block built in

through the end bearing and allowed to cure before

continuing building.

6. The inner and outer leaves supported by the lintel should

be raised together to avoid excessive eccentricity of

STRUCTURAL PERFORMANCE

FIRE TEST

DURABILITY

TECHNICAL INFORMATION

Technical information continued over page

3332

INSTALLATION

PPLLAANN RRAADDIIUUSS LLIINNTTEELL

S P E C I A L P L A N R A D I U S L I N T E L S FAX BACK

SPECIAL PLAN RADIUS LINTEL ENQUIRY FORM



From: Name

Company

Tel: Fax:

Email Job reference

Clear span AA mm

Radius RR mm

Outer leaf mm

Cavity width mm

Inner leaf mm

Inside only

Both sides

None

CORNER POST

CANT BRICK LINTEL

TIMBER ARCH LINTEL

NOTCHED LINTEL

END PLATED LINTELS

R

A

Important Notes:Do not allow for bearing, thiswill be added at design stage.

I BEAMS

VENETIAN ARCH LINTEL

ISLAMIC ARCH LINTEL

CRANKED LINTELS

STEPPED LINTELS

For more information on other special lintels please complete details above, tick boxesbelow and Faxback or contact the Technical Department Hotline on 01633 486461.

Enquiries for Special Lintels should be faxed to: 01633 486495

loading. Masonry above lintels should be allowed to cure

before applying floor or roof loads. If this is not achievable,

temporary support in the form of props should be used.

NHBC guidelines propose no greater than a 1m span for

props during construction.

7. When installing concrete floor units or other heavy

components, care should be taken to avoid shock

loading. Temporary support in the form of props is

advisable if there is a limited amount of masonry to the

outer leaf. Pre-cast floor units should be laid on a mortar

bed to avoid load concentrations at high points in the

masonry. Floor units should not be dragged into position.

8. Point loads should not be applied directly to lintel

flanges. Lintels should have a minimum of 150mm

masonry between the flange and the application level of

any form of loading.

9. In accordance with BS 5628 and NHBC requirements,

all external wall lintels MUST be installed with a flexible

damp proof course with the exception of those

adequately protected by an eaves overhang or similar

form of protection. Stop ends should be provided as

specified by BS 5628 Part 3 1985 and the NHBC to

avoid moisture entering the cavity near the reveals.

Proprietary stop ends should be used or alternatively

the DPC should extend to the edge of the front toe and

50 - 150mm beyond the end of the lintel (depending on

coursing) to allow formation of an integral stop end at a

suitable perp joint. Weepholes should be used in the

external masonry leaf to drain moisture away from the

cavity. A minimum of 2 weepholes should be provided for

each lintel, generally at 450mm centres. Weepholes can be

formed with proprietary weep vents or by leaving perp

joints open.

10. Masonry should not overhang any flange by more

than 25mm.

11. The lintel toe must project beyond the window/door

frame and it is recommended that a flexible sealing

compound is used between the underside of the lintel

flange and the frame to avoid moisture penetration.

12. When the underside of a lintel is exposed, its appearance

can be enhanced by the addition of lintel soffit cladding,

supplied in white and brown, or by the application of a

good quality etch primer and paint after installation.

To help ensure optimum performance and economy from

lintel specifications, IG provide a free expert advisory service.

The service includes:

1. Preparation of lintel schedules from drawings supplied.

These drawings should include the following information

if future revisions to the specifications are be avoided:

a. Plans including dimensions (1:50 scale preferable)

b. Elevations (1:50 or 1:100 scale)

c. Sections (1:50 scale preferable)

d. Floor joist layouts or PC concrete floor layouts and

loadings (1:50 scale preferable)

e. Roof layout, showing positions of girder trusses

etc. (1:50 scale preferable)

f. Any other relevant information, such as steelwork

layouts etc.

2. Provision of lintel location drawings.

3. Provision of structural calculations for Building Regulation

approval. We reserve the right to supply these only in

reply to a written request from a Building Control Authority

or upon the receipt of an order/letter of intent.

4. Advice on the use of lintels in uncommon situations

such as reduced end bearings, point loads and the like.

5. Design and detailing of special lintels, see special lintel

page 29.

Total UDL - This is the safe uniformly distributed load and

indicates the total design load spread evenly along the

length of the lintel including an approximate safety factor.

Ixx - Represents the moment of inertia or the second

moment of area and is a characteristic of the lintel shape. It

TECHNICAL ADVISORY SERVICE

indicates the degree of stiffness the lintel will exhibit under

a given load and span. The greater the value of Ixx, the less

the lintel will deflect.

Zxx - This is the section modulas and is used when

calculating the effects of uneven loading. It indicates the

maximum bending stresses that the lintel section can be

subjected to without exceeding the design stress.

Web buckling - This applies to box lintels and indicates the

maximum end reaction that the lintel can sustain before the

webs fail by buckling.

British and European Standards IG lintels are designed to

meet all relevant standards: for manufacture BS 5977

Part 2:1983 and BS EN 845–2:2003; for galvanised steel BS

EN 10142 1991 Specification for continuously hot dip zinc

coated low carbon steel sheet and strip and for stainless

steel BS EN 10088-2 1.4301 (304S15) cold rolled stainless

alloys

Agrément Certificate No 97/3343:

The BBA have assessed the following lintels which are covered

by the certificate: L1/S 50, L1/S 75, L1/S 100, L1/HD 50,

L1/HD 75, L1/HD 100, L1/XHD 50, L1/XHD 75, L1/XHD 100,

L1/S WIL 50, L1/S WIL 75, L1/S WIL 100, L1/HD WIL 50,

L1/HD WIL 75, L1/HD WIL 100, L1/XHD WIL 50, L1/XHD

WIL 75, L1/XHD WIL 100, L1/ST 50, L1/ST 75, L1/ST 100,

L1/ST HD 50, L1/ST HD 75, L1/ST HD 100, L1/ST XHD 50,

L1/ST XHD 75, L1/ST XHD 100, L1/S WOL 50, L1/S WOL

75, L1/S WOL 100, L7/50, L8/50, L9, BOX 75, BOX 100,

BOX 140, BOX 200, L5/50, L5/75 and L5/100.

Quality Control

Manufacturing facilities and quality control systems at

Cwmbran have been successfully assessed by the British

Standards quality inspectorate and the company has been

awarded a Quality Assurance certificate to BS EN ISO 9002.

Tabular information in this brochure includes CAD Codes

that relate to the IG Fastrack Database. This allows architects

and specifiers using computer aided design instant access

to IG steel lintel details to produce complete and accurate

drawings quickly and easily.

Supplied on CD-ROM, the Fastrack Database is available in

AutoCAD and DXF format. Specifiers can obtain free

copies directly from IG’s Technical Services Department

01633 486499.

Hazard Identification

� There may be a risk of cuts from sharp edges or projections.

� Structural products must be installed in accordance with

their specific instructions to prevent the risk of failure.

Handling, Storage & Disposal

� Handling of materials must comply with the Manual

Handling Operation Regulations 1992.

� Protective gloves should be worn when handling or cutting

material to prevent injury from sharp edges.

� Some products may have a film of mineral cutting fluid

after manufacture, therefore carry out personal hygiene

including proper washing of hands after contact.

� Where structural products are to be removed from an

existing installation, care must be taken to ensure that the

procedure followed does not compromise the loading/

installation restrictions applicable to the products.

� No special disposal requirements, subject to local restrictions.

COSHH

We are not aware of any risk to the person, arising from

chemicals or any other substances present on or in our products.

Part L Compliance

Following numerical analysis, the British Board of Agrément

has concluded that IG’s steel lintels with continuous base

plates do comply with the cold bridging requirements of

Part L of the Building Regulations.

Environmental

The expanded polystyrene core used in IG Lintels has an

ozone depletion potential of zero.

TERMINOLOGY USED IN TABLES

HEALTH AND SAFETY !

34 35

QUALITY ASSURANCE

FASTRACK DATABASE FOR CAD USERS

LintelHeader plate

Footer plate

Prop

Unique Products with Outstanding Benefits:

• Available off-the-shelf in easy-to-handle flat packs

• Easy to calculate quantities, transport, use and adapt

• Three sizes cover all roof pitches and cavity widths

• Impact, tear and abuse resistant thermostable polypropylene 0.8mm thick

• Compatible with all building materials

• Resistant to acid, alkali and sulphate

• Meets all current Building Regulations and NHBC requirements

• Will last the lifetime of the building

• The most cost-effective cavity tray system available

• Available from a national network of stockists

Cavity TraysA UNIQUE SINGLE ELEMENT CAVITY TRAY SYSTEM GABLE ABUTMENT SYSTEM

When a stepped or staggered gable abutment is formed the

status of the external skin below the roof line changes to that

of an internal skin. Accordingly, every gable abutment must be

constructed so as to prevent dampness and rainwater from

penetrating below the abutting roof line.

The IG Gable Abutment Cavity Tray forms a stepped cavity

dpc which is incorporated into the building during bricklaying.

The completed structure is ready to receive roof lead flashing

in the conventional way.

THE IG CAVITY TRAY - TYPE GA

Manufactured from polypropylene, the IG Gable Abutment

Cavity Tray is available in three sizes to suit all roof pitches up

to 60°. It is suitable for use in all brick, block and timber-

framed constructions, the large bridging piece catering for

cavity widths from 50mm to 100mm.

Supplied flat, the pre-creased trays allow for easy on-site

folding to the required shape - catchment, left and right hand

or ridge tray. A locating lip facilitates the accurate placement

of trays during bricklaying.

CALCULATING QUANTITIES

The single-element system makes the calculation of quantities

very simple. Whether you are building with bricks or blocks

the rule is the same: you require one cavity tray per course

per slope. On a double slope roof this calculation will give you

an extra tray that can be used to lengthen the ridge tray if

required.

SIZES AND ROOF PITCHES

The IG Gable Abutment Cavity Tray is available in three sizes

as detailed below. Trays are supplied in shrink-wrapped flat

packs in the quantities indicated or as single items.

Note: All packs contain full installation instructions and folding instructionsare printed on each tray

INTERNAL/EXTERNAL CORNERS

Flat-packed foldable corners complete the IG Gable Abutment

Cavity Tray System. Both internal (GAIC) and external (GAEC)

corner trays comprise factory-jointed two-piece assemblies

that are folded on site to form right-angled corners. The

trays are pre-creased and incorporate adjustment for 50mm,

75mm or 100mm cavity widths and incorporate mastic sealant

strips for overlapping areas.

REFURBISHMENT SYSTEM

The IG Refurbishment Cavity Trays System has been

specifically developed to facilitate both the insertion of a new

tray into an existing wall and the repair or alteration of an

existing damp proof course.

WHERE TO USE

Where a new lean-to extension meets an existing building,

the original external wall becomes an internal partition

below the roof line and must be protected from dampness

and the penetration or rainwater. Similarly, when a flat roof

is resurfaced with added insulation, or is reconstructed as an

inverted roof with top paving, the roof level may be raised

and thus require the skirting and its corresponding damp

proof course to be lifted.

In addition, existing cavity trays which have been poorly

constructed or have rotted allowing water to leak through must

be replaced.

THE IG CAVITY TRAY - TYPE RFT

Available off-the-shelf in flat-packs, the IG Refurbishment

Tray combines ease of handling, transportation and use

with complete effectiveness. It meets all current Building

Regulations and NHBC requirements. Manufactured from

polypropylene, the IG Refurbishment Tray is 620mm wide

by 280mm deep and is suitable for use in all brick, block and

timber-framed constructions. The large bridging piece caters

for cavity widths from 50mm to 100mm.

Supplied flat, the pre-creased trays allow for easy on-site

folding to the required shape including forming left and right

hand end stops. A locating lip facilitates accurate placement

during installation and the mastic sealant strip (protected by

release paper) ensures easy and watertight overlap jointing.

SPECIFYING

When specifying, the following wording is recommended:

“Provide IG Refurbishment Cavity Tray System from

IG Limited, Cwmbran, Gwent NP44 1XY (01633 486486) to

be installed as manufacturer’s instructions. Trays to be folded,

as instructions on tray, to form left and right hand stop ends”.

Refurbishment Cavity Trays

Code Size in mm Packs of:RFT 620 x 280 10

Outer Leaf SizeConstruction Roof Pitch Code In mm Packs of:

Brickwork 22.5°-60°GA1 375 x 310 50 or 10

Blockwork more than 45°

Brickwork 15°-30°GA2 525 x 310 5

Blockwork 35°-45°

Brickwork less than 15°GA3 675 x 310 5

Blockwork 25°-40°

REFURBISHMENT

GABLE ABUTMENT

36 37

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Combination Flashings& Glazing Options

(nominal wxh)mm 550x780 550x980 660x1180 780x980 780x1180 780x1400 940x1600 1140x1180 1340x980

Thermal Spec 01T 02T 03T 04T 05T 06T 07T 08T 09TToughened glazing system (28mm pane ‘Low E’Gas Filled) U = 1.4 w/m2k

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Standard WindowSizes

38 39

ig lintel manual april 09

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