jim malek - insulation, performance & certification

Jim Malek

Insulation,

Performance

&

Certification

Jim Malek Introduction

• Thermal Insulation - The Basics K – Value

U – Value

R – Value

Thermal Bridging

• Poly Urethane Insulation PIR

Phenolic Insulation

• Fibrous Insulation Mineral wool

Fibre Glass

Granulated Insulation

• Reflective Insulation Thermo Cellular

Reflective Foil

• Polystyrene XPS

EPS

• How to choose the right

Insulation

• Sustainability Building Regulations

• What to look out for Certification

Jim Malek

THERMAL

INSULATION:

THE BASICS

Thermal Insulation: The basics

Jim Malek

HEAT = ENERGY

ENERGY = EXPENSE

CONTROL HEAT


Jim Malek

Heat is transferred in 3 ways:

Radiation

Convection

Conduction


Jim Malek Thermal Insulation: The basics

Summer

Jim Malek

•Pipe Insulation Oil Refinery plants and buildings to keep liquids @ a regulated

temperature, typical products should have good fire properties,

shear strength, and compression strength.

•Refrigeration Insulation Needs to have excellent thermal properties & excellent

compressive strength

•Building Envelop Insulation Consider ease of application

Lifespan of the product,

Fire Properties,

Eco Friendliness

Manufacture warranties

Climate

•HVAC Industry Fire

Ease of application

•Transportation Ease of application

Fire properties

Water absorption

•Space Effects of Radiant energy

Why & Where is Insulation used?


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Bulk insulation


Reflective insulation

Jim Malek Understanding the Thermal Properties

• What does it all mean? • The K factor is the measure of heat that passes

through one square foot of material that is 1 inch thick

in an hour. Usually, insulation materials have a K

Factor of less than 1. The lower the K value, the better

the insulation.

• The R-factor is not constant. It is the Thermal

Resistance factor of insulation. In layman’s terms, this

refers to the effectiveness of the insulation at retarding

the transfer of heat.

• U Factor stands for Thermal Conductance Factor. It’s

the quantity of heat, measured in W/m2.K, that passes

through a foot of insulation material. Mathematically,

it’s the K-factor divided by the thickness of the

insulation material. Just like the K Factor, the lower

the U factor, the better the insulating properties of the

material. The U value also takes into consideration the

whole building element.

• For example, if you have a product

with a K 0.040 and another with

K0.020, the product with the lower K

value will in effect help you cut your

insulation in half!

Jim Malek R-Values

Material

R-Value (R)

Total

U-Value (U)

Product thermal resistance

+ Insulation thermal resistance

+ Building material thermal resistance

+ Internal air film thermal resistance

+ External air film thermal resistance

+ Air gap thermal resistance

Jim Malek R-Values

Air space R-values

C = Ehr+hc

C = co-efficient for total heat transfer through the air space

E = effective emissivity of the air space

hr = calculated by means of the Stefan-Boltzmann Law:-

hr = 0.172x10-8 (T14 – T2

4)

(T1– T2)

T = Absolute temperature of bounding surfaces

hc = convection/conduction coefficient

Jim Malek

U-VALUES

&

K-VALUES (λ)


Jim Malek U-Values

R-Value (R) =

U-Value (U) =

Thermal Resistance

Thermal Transmittance

The insulation material resistance to heat flow (m2.K/W).

The amount of heat transmitted through the insulation material (W/m2.K)

U-Value = or R-Value = U-Value R-Value

1 1

Jim Malek K-Values

K-Value (λ) = Thermal Conductivity

Physical property of a material expressing its ability to conduct heat (W/m.K)

K-Value

Thickness (m) R-Value =

Jim Malek Product range – Which Insulation?

Thicknesses to achieve equivalent of 100mm Phenolic insulation*

210 mm

200 mm

190 mm

190 mm

145 mm

110 mm

100 mm

Cork

Glass Mineral Fibre

Rock Mineral Fibre

Expanded Polystyrene

Extruded Polystyrene

Rigid Urethane

Phenolic 0.020

0.038

0.040

0.042

0.022

0.030

0.038

Jim Malek

THERMAL BRIDGING

&

THERMAL BREAK

Jim Malek Thermal Bridging

Heat energy transfers

across building

elements

Heat gain

Jim Malek Roofs: Thermal Breaks

Thermal Break

reduces conduction or

Thermal Bridging

Jim Malek

Type: Bulk Fibre

Description: Spun molten rock fibres bonded with resin

Suitable for:

Non-combustible

Good acoustics

Slightly lower conductivity than glasswool

Allergenic

Settles

Can absorb moisture

Thermal Insulation

Rock Mineral Fibre

(Rockwool)

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Jim Malek

Type: Loose fill or batt form

Description: Natural wool.

Suitable for:

Easily pumped in installation

Fire retardant

Can compress and settle over time

Can absorb moisture

Chemicals added to make it rodent resistant and fire

retardant

Types of Insulation

Wool

Jim Malek

Type: Bulk Fibre

Description: Spun molten glass fibres bonded with resin

Suitable for:

Non combustible

Easy to cut

Allergenic and itchy to handle (PPE required)

Can easily compress

Can absorb moisture

Thermal Insulation

Fibreglass (Glasswool)

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Jim Malek

Type: Loose Fill

Description: Granulated rockwool.

Suitable for:

Can be retrofitted in cavity walls

Must be treated with water repellent to avoid bridging

the cavity

Thermal Insulation

Granulated Rockwool

Jim Malek Fibre Insulation

Product Mineral Insulation Glass Insulation

OHS Caution required in case of skin and respiratory

contamination

Caution required in case of skin and

respiratory contamination

Fire Can give excellent fire performance needs to be

certified and checked as behaviour can be effected

when foil attached

Can give excellent fire performance needs to

be certified and checked as behaviour can be

effected when foil attached

Density Vary from 12kg to 150+ 12kg to 50 KG

K Value 0.038 0.040

Cell Structure Open Cell Open Cell

Consideration with

application Do not compress as this will reduce effectiveness

Insure correct density is used for the correct application

Do not get wet

Same

Jim Malek

Type: Reflective

Description: Polymer air-cellular or closed-cell pliable foam core

sandwiched between 2 layers of highly reflective aluminium foil

Suitable for:

Excellent radiation barrier

Fibre-free

Vapour barrier or vapour permeable versions

Moisture resistant and non allergenic

Can provide thermal break

Relatively low material R-value

Requires adjacent air space

Thermal Insulation

Thermo Cellular

Jim Malek

Type: Reflective

Description: Foil laminated to either side of glass fibre

reinforced paper or woven polyethylene scrim

Suitable for:

Vapour barrier or vapour permeable versions

Excellent radiant barriers

No material R-Value contribution

Thermal Insulation

Reflective Foil Laminate (RFL)

Jim Malek Reflective Foil Insulation

• High Thermal Performance /Low

Thermal Mass

• 3 Products in 1 application

Vapour barrier, Thermal

Insulation, Thermal Break

• Simple & Fast To Install

• Fibre-Free With No Health Risks

Product Reflective foil

Insulation

OHS Totally Safe (may need to wear sun

glasses on bright day)

Fire Can give excellent fire performance

needs to be certified and checked.

Density N/A

K Value N/A

Cell Structure Closed Cell Structure

Consideration

with

application

Limited in thermal performance

Jim Malek

Type: Rigid Board

Description: High performance, fibre-free rigid urethane resin insulation

core.

Suitable for:

CFC/HCFC-free with zero Ozone Depletion Potential (ODP)

Closed cell insulation core

Improved strength

Thermo-set non-absorbent core

Low conductivity relative to XPS

Perceived to be more expensive than other insulations

Thermal Insulation

PIR (polyisocyanurate)

Jim Malek

Type: Rigid Insulation Board

Description: Super high performance rigid thermoset core sandwiched

between composite facings

Suitable for:

CFC/HCFC-free with Zero Ozone Depletion Potential (ODP)

Ultra low conductivity = Highest R-Value per mm

Very low smoke emissions

Improved fire rating - Class 1 (BS 476 Parts 6 & 7)

Can be used as an EIFS

Perceived to be more expensive than other insulations

Thermal Insulation

Phenolic

Jim Malek Poly Urethane Insulation

Phenolic Insulation Polyisocyanurate

Polyurethane

Spray

Product Phenolic PIR Polyurethane

Spray

OHS No need for additional safety

equipment

No need for

additional safety

equipment

Require additional Safety

equipment

Density 32-40KG 32-40KG Erratic due to preparation on site

and application.

K Value Can be as low as 0.020 Can be as low as

0.022

Erratic due to preparation on site

and application.

Fire Can give excellent fire

performance needs to be

certified and checked

Can Give good Fire

performance needs

to be certified and

checked

Can Give good Fire performance

needs to be certified and checked

Jim Malek


Description: Extruded polystyrene foam (XPS) consists of closed cells

and offers improved stiffness with reduced thermal conductivity.

Suitable for:

Material strength

Low thermal conductivity relative to EPS

Can be used in an EIFS

As a thermoplastic material it burns and melts easily

Thermal Insulation

Extruded Polystyrene (XPS)

Jim Malek


Description: Expanded polystyrene (EPS) is a rigid and closed-

cell foam. Usually white, it is made of pre-expanded polystyrene

beads.

Suitable for:

Relatively high compressive strength

Water resistant

Low cost

Thermoplastic material - burns and melts easily

Thermal Insulation

Expanded Polystyrene (EPS)

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Difficult to cut and shape without creating loose beads

Jim Malek Building Regulations; A Global Concept

Jim Malek Building Regulations (International)

Carbon foot print Expenditure of energy

Faced build up Including rendering systems

Cladding

Fire performance Indoor

Outdoor

Roof Build up Indoor

Outdoor

Comfortable Living

Conditions Water Temperature

Ducting Temperature

Space Temperature

Insulation play a pivotal roll in Building Regulation and

the Environmental Impact of the planet.

Jim Malek Accreditations

Jim Malek

jim malek - insulation, performance & certification

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