INTRODUCTION

Società Italiana Lastre S.p.A. was founded in 1961, and with

an extensive range of high quality products rapidly became

the market leader in corrugated sheet manufacture. In 1973

Società Italiana Lastre S.p.A began production of flat sheets

with the introduction of modern, technologically advanced

equipment.

With continuous manufacturing advances and improvements

in material quality, Società Italiana Lastre S.p.A is still the only

Italian company producing NT (asbestos free) corrugated fibre

cement and flat sheets which comply with the requirements

of all the European markets.

Recently, Società Italiana Lastre S.p.A has expanded the

manufacture of flat sheets primarily intended for use in the

prefabricated building industry and now offers an extensive

range of products in this sector.

Società Italiana Lastre S.p.A is proud of its reputation as a

modern manufacturer of high quality products combined with

cutting edge technological innovation. The entire workforce

from engineers to production teams is highly skilled and

trained to ensure the continuing advancement of the company

and its products. The company’s main site in northern Italy

occupies some 100,000 square metres of which nearly half

is covered factory space. The site is connected directly to the

national rail network, enabling fast and environmentally

friendly deliveries across Europe.

Società Italiana Lastre S.p.A has a policy of continuous

research and development aimed at both improving the

quality of existing products and the introduction of new

product lines.

CEMBONIT

HA HCCembonit H is one of the new generation of reinforced asbestos freeflat sheets made from silica and cement, strengthened withmineralised cellulose fibres. The sheets are non-combustible andresistant to rot, fungus and vermin attack. Cembonit H is used in manybuilding applications such as flooring and balconies in addition to itsprimary use as interior and exterior walling and cladding. CembonitHA sheets are available in light grey. Cembonit HC sheets are availablein dark grey, green, yellow, red and white. Sheets can also be paintedwith alkali resistant paints and varnishes to match particular colourrequirements.The sheets are manufactured to comply with UNI EN 12467:2002standards.

* Sheets not treated and after a 24-hour bath in water.

CHARACTERISTICSSpecific gravity when dry >1,6 kg/dm3

Max water absorption (*) 25%

Natural humidity 10÷15%

Movement in extreme weather conditions/temperature

and moisture conditions –5°C+100 °C; 20+90%1,5 mm/m

Thermal conductivity 0,35 kcal/mh°C

Thermal expansion coefficient 0,00001°C-1

Combustibility Class 0

Freeze resistance Optimum

Oils, acids, bases, salts resistance Good

CEMBONIT HA CEMBONIT HC

Impermeability Absolute

Wear resistance Good

Bending resistance

Parallel rupture to fibres 180 kg/cm2

Compression resistance 400 kg/cm2

Resilience 2 kg/cm/cm2

E modulus of elasticity 120.000 kg/cm2

Perpendicular rupture to fibres 250 kg/cm2

>1,6 kg/dm3

25%

10÷15%

1,5 mm/m

0,35 kcal/mh°C

0,00001°C-1

Class 0

Optimum

Good

Absolute

Good

180 kg/cm2

400 kg/cm2

2 kg/cm/cm2

120.000 kg/cm2

250 kg/cm2

Tolerance ratios:Società Italiana Lastre manufactures non asbestos cement flat sheetsin two standard panel sizes 1200x2500 mm and 1200x3000 mm, in arange of thickness from 5 mm to 40 mm.Thanks to high precision cutting machines, Società Italiana Lastre cansupply all panel sizes up to 1200x3000 mm to special order.Tolerances guaranteed are ±2 mm (length and width), ±5mm(diagonal), ±10% (thickness) and ±0,2 mm (thickness of factory sandedsheets).

Storage and Transport:The sheets are supplied heat-shrink wrapped and stacked on pallets.Pallets must be transported covered and stored on a flat surface undercover. The sheets must be lifted vertically by two people and unwrappedcarefully. Under no circumstances should sheets be allowed to slideover each other.

THICKNESSmm

THICKNESS, WEIGHTS

6 8 10 12 15 20 25 30 40 6 8 10 12 15 20 25 30 40

10 13 16 19 24 32 40 48 64 10 13 16 19 24 32 40 48 64WEIGHTkg/m2

STANDARD PRODUCTION SIZESmm 1200x2500; mm 1200x3000

CEM

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CEM

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ZELIPLAT

ZELIPLATZeliplat sheets are formed from a compound of cement, silica andselected mineralised cellulose fibres. The sheets are manufacturedunder pressure and cured in an autoclave. This process results in asheet with high tensile stress resistance and elasticity.Typical applications for the Zeliplat sheet include partition walls,ceilings, and exterior and interior curtain walls.

CHARACTERISTICSSpecific gravity when dry 1,3 kg/dm3

Max water absorption (*) 34%

Natural humidity 10÷15%

Movement in extreme weather conditions/temperature and

moisture conditions –5°C+100%; 20°C+90%2,5 mm/m

Thermal conductivity 0,32 kcal/mh°C

Thermal expansion coefficient 0,00001°C-1

Incombustibility Class 1

Freeze resistance Optimum

Oils, acids, bases, salts resistance Good

ZELIPLAT

Impermeability Absolute

Wear resistance Good

Bending resistance

Parallel rupture to fibres 180 kg/cm2

Compression resistance 350 kg/cm2

Resiliency 3,5 kg/cm/cm2

E module of elasticity 70.000 kg/cm2

Perpendicular rupture to fibres 250 kg/cm2

THICKNESSmm 4 5 6

6 7,5 9WEIGHTkg/m2 ZE

LIPL

AT

THICKNESS, WEIGHT

STANDARD PRODUCTION SIZE – ZELIPLATmm 1250x2500; mm 1250x3000

* Sheets not treated and after a 24-hour bath in water

TREATMENTS

Non - asbestos fibre cement flat sheets have many different uses dueto their appearance and physical properties. Società Italiana LastreSpA can offer special factory treatments and finishes for specificapplications;

Floorings and surfaces prone to wear and tear:Abrasion resistance, anti-skid properties and surface durability can beimproved further by an innovative treatment based on the applicationof a satin effect clear varnish. This treatment is applied using rollersand cured using a UV polymerising system.Thorough waterproofing of the sheet is guaranteed, and a specifictreatment to the under side of the sheet and along the sides, removewill allow good vapour permeability. The varnish is non-toxic and suitable for contact with food, makingthis type of treatment versatile and suitable for any application.

Sheets for external and internal walling and cladding:Factory coloured or natural flat sheets perform very well when treatedwith clear UV resistant varnish. The varnish does not alter theappearance of the sheets, but provides high resistance to air bornepollutants, excellent weathering and anti yellowing properties.The finish is matt, avoiding the “glossy” effect. The sheets are easilywashable.

Coated sheets for external and internal walling and cladding:Non-asbestos fibre cement flat sheets can be coated with either anopaque colour or with a pigmented varnish that allows the texture ofthe natural cement product to show through. The sheets are treatedon the under side with a waterproof but porous product, whilst theupper side is coated with an acrylic product with either an opaque orsemi-opaque finish applied by a rolling machine.The quality of the pigments and acrylic resin make the surface highlyweather resistant with excellent anti-yellowing properties only full stop.

VENTILATEDFACADE

SYSTEM A (on timber)Fibre cement sheets are screwed onto a framework consisting ofvertical timber battens (30x70 mm minimum) fixed onto the wall bymeans of spacer fixings. The insulating layer is then fitted between thevertical battens. The depth of the ventilated section is directly relatedto the thickness of the battens. The sheets are screwed to the battensat 800 mm fixing centres.

The non-asbestos fibre cement “ventilated facade” used to protectexterior walls is not just a simple cladding, but a complex system witheach component performing a specific and critical function. Briefly,the “ventilated facade” consists of the load-bearing wall, insulatingmaterial, a ventilated air space and an external coating of non-asbestos fibre cement sheets.

Horizontal section1 - Fibre cement flat sheets2 - Battens 40x60 /

40x100 mm4 - Fixing5 - Butyl seal 70x2 mm6 - Insulating layer7 - Spacer fixings8 - Wall

Vertical section1 - Fibre cement flat sheets2 - Battens 40x60 mm 3 - Insulation fixing4 - Fixing5 - PVC or aluminium section6 - Insulating layer7 - Spacer fixings8 - Butyl seal 70x2 mm9 - Wall

SYSTEM B (Fibre cement)Fibre cement sheets are screwed onto fibre cement battens. Thebattens supporting the cladding sheets must be 12 or 15 mm thick.This system uses spacer fixings to adjust the distance of the battensfrom the wall. The cladding is then attached to the fibre cementbattens.

Horizontal section1 - Fibre cement flat sheets2 - Fibre cement battens 4 - Fixing5 - Spacer fixing6 - Insulating layer7 - Butyl seal 70x2 mm8 - Wall

Vertical section1 - Fibre cement flat sheets2 - Fibre cement battens 3 - PVC or aluminium seal4 - Fixing5 - Spacer fixing6 - Insulating layer7 - Butyl seal 70x2 mm8 - Insulating fixing9 - Wall

TYPESheet size ranging

up to 1200 x 3000 mm

* Thickness recommended for normal ventilated fronts** Thickness recommended for hidden fixing system

8* 10* 12** 15** 18**

13 16 19 24

8* 10* 12** 15** 18**

13 16 19 24 18

CEMBONIT HA thickness mm(Light grey) weight kg/m2

CEMBONIT HC thickness mm(Dark grey, green, red, yellow,

weight kg/m2

pure white)

SYSTEM C (galvanised steel)Fibre cement sheets are screwed onto metal lathe. The load bearingstructure consists of a metal lathe fixed to the wall by a series of spacerfixings. The lathes are screwed onto the wall with fixings atapproximately 800 mm. centres. The cladding is then attached byfixing to the lathe at 800 mm. centres.

Horizontal section1 - Fibre cement flat sheets2 - Light metal lathe4 - Stainless steel fixing

screws5 - Insulating layer6 - Spacer fixing7 - Butyl seal 70x2 mm8 - Wall

Vertical section1 - Fibre cement flat sheets2 - Light metal lathe3 - Stainless steel fixing

screws4 - Insulating layer5 - PVC section for horizontal

joint6 - Spacer fixing7 - Butyl seal 70x2 mm8 - Wall

SYSTEM D (extruded aluminium)Fibre cement sheets are fixed onto an extruded aluminiumsubstructure. Fixings are attached to the back of the sheet and thenclipped to the aluminium framework. The system is such that there areno fixings visible on the external facing.

Horizontal section1 - Fibre cement flat sheets2 - Extruded aluminium

substructure3 - Aluminium frame4 - Blind fixing5 - Insulating layer

Vertical section1 - Fibre cement flat sheets2 - Extruded aluminium

substructure3 - Aluminium frame4 - Blind fixing5 - Insulating layer

FLOORINGS

CHARACTERISTICS:Grip as per UNI EN ISO 2409 standard:100% grip

Skidding test method B.C.R.A.:Dry leather: 0,63 Wet rubber: 0,74

Skidding test method DIN 51097:Skidding angle: 14,6 Classification: A

Skidding method DIN 51130:Skidding angle: 3,5 Classification: R9

Abrasion test as per UNI8298 DIN53754 standardsResult: 100m/g1000u

PEI Classification:Pei III medium heavy traffic

The advantage offered by II Cembonit H (see Chart) when properly cut tosize, is that it can serve as an element for load bearing floors (see dryaddition of new storeys to a building, mezzanines …).

Support spacingcm

20 1248 1950 2808 4388 7800 1218825 799 1248 1797 2808 4992 780030 555 867 1248 1950 3467 541735 408 637 917 1433 2547 398040 312 488 702 1097 1950 304745 247 385 555 867 1541 240750 200 312 449 702 1248 195055 165 258 371 580 1031 161260 139 217 312 488 867 135465 118 185 266 415 738 115470 102 159 229 358 637 99575 89 139 200 312 555 86780 78 122 176 274 488 76285 69 108 155 243 432 67590 62 96 139 217 385 60295 55 86 124 194 346 540100 50 78 112 176 312 488105 45 71 102 159 283 442110 41 64 93 145 258 403115 38 59 85 133 236 369120 35 54 78 122 217 339125 32 50 72 112 200 312130 30 46 66 104 185 288135 27 43 62 96 171 267140 25 40 57 90 159 249145 24 37 53 83 148 232150 22 35 50 78 139 217

25201512108THICKNESS mm

Possible evenly distributed loads (safety factor: 3)

Cembonit H sheets are processed using state of the art machinery.The coatings are applied by rolling machines. The sheets are then kilndried and cured using UV polymerising lamps and can be used formany flooring applications:

CALCULATION OF DEFLECTION - CEMBONITFormula for sheet laid and loaded with evenly distributed weight:

IBM TESTStress rupture test applied to the test load on ø 4 cm circular surface exertedin the centre along the side of the sheet right by the edge (picture 1) and atthe centre of the panel (picture 2).

Where:f = vector expressed in cmP =total distributed weight expressed in kg, for a 100 cm sheet (total width)I = point of support expressed in cmE =modulus of elasticity of a Cembonit sheet of 120.000 kg/cm2

J = moment of inertia b s3

With:b = sheet width 100cms = sheet thickness in cm

The inherent strength and physical characteristics of Cembonit H, means thatthis sheet can also be used in the construction of raised floors as a load-bea-ring device, and for aesthetically appealing prefabricated structures (see IBMTest chart below).

f = 5384

12

P I3

EJ

Thicknessmm20 300 220 60028 750 400 80030 790 550 850

deflection right at the centre of the side to the applied loads

Load in the centreof the panel kg

Load parallel tofibres kg

Load perpendicular to fibres kg

Thickness mm

vector to the various loads expressed in mmkg 100 kg 150 kg 200 kg 300 kg 400 kg 500 kg 600

20 1,6 2,3 3,0 0,0 0,0 0,0 0,028 1,1 1,6 1,9 2,6 3,2 4,1 4,830 1,0 1,4 1,7 2,3 2,9 3,5 4,1

Dry specific weight Kg/dm3 1,7Maximum water absorption % 18Maximum dilation mm/ml 1

Picture 1

Picture 2

BALCONIES

Fibre cement sheets are a cost effective and technologically advancedcomponent in the construction of balcony surrounds. The sheets areattractive and durable, and simple to use.The sheets can be used for upright or raked surrounds and stairbalustrades and offer a number of technical and architectural options.

COATINGSAND INTERIOR

DÉCOR

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2004

Whilst specifications, tables and diagrams in this brochure have been checked for accuracy,no liability in respect of data, dimensions etc. can be accepted by Società Italiana Lastre or itsagents. Weights, dimensions and other data are for information and are not binding. SocietàItaliana Lastre has a policy of continuing product development and improvement. Productspecification and design are subject to change at any time without notice.

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Head office and works:25028 VEROLANUOVA (BRESCIA) - VIA F. LENZI, 26Tel. ++39 030 9920900 r.a. - Fax ++39 030 9920884

www.sil-lastre.com - E-mail: info@sil-lastre.com