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Properties

MATERIAL

TYPICAL LAMBDA RANGE

TYPICAL THICKNESS RANGE UNIT

FIRE RATING

ACOUSTIC PROPERTIES Y/N

Glass Wool

Stone Wool

0.032 - 0.044
0.035 - 0.038

25 -220

25 -165

A1/A2

A1

Yes

Yes

PIR/PUR

Phenolic

XPS

0.021 - 0.022
0.018 - 0.023
0.031 - 0.035

12 - 200

25 - 140

25 - 100

C/E

C/E

E/F

No

No

No

EPS

0.030 - 0.038

20 - 600

E/F

No

Naturals

0.038 - 0.048

20 - 200

E

Yes

Multi-foil

N/A

30 - 33

E

No

 

R=THICKNESS IN METRES OF MATERIAL (MM ÷ 1000)

   THERMAL CONDUCTIVITY (LAMBDA VALUE λ and k)

 

Application

Mineral Wool

Glass Wool

(Thermal, acoustic)

Stone Wool

(Thermal, acoustic, fire)

Knauf

Rockwool

 

Isover

 

Superglass

 

Ursa

 

Paroc

 

 

Rigid Board

PIR/PUR

(Thermal)

Phenolic

(Thermal, Fire)

XRS

(Thermal)

EPS

(Thermal)

Celotex

   

Kingspan

  

Xtratherm

  

Ecotherm

   

Recticel

   

Quinn Therm

   

Ballytherm

   

Cellecta Hexatherm

  

 

Dow

  

 

Kingspan Styrozone

  

 

Knauf Polyfoam

  

 

Kay Metzeler

   

Jablite

   

Sundolitt

   

S&B

   

Springvale

   

SPI

   

 

To read up on how better sound performance can affect comfort levels, click here. Please note that this is basic principle, a full calculation should always be obtained from the manufacturer.