Insulation

BRAND CHAMPION - Isover Cavity Insulation products are made from glass mineral wool, one of the most enviromentally friendly materials available.
The ISOVER product range provides fire safe thermal and acoustic insulation solutions in many applications.
The range of high quality products has been designed to be effective in both performance and cost, whilst providing
ease off installation. Each product is engineered to fulfil specific performance criteria.

Cavity

Batts

Benefits:
Non combustible - Euroclass A1 fire rating, the best attainable.
Thermal conductivity (Lambda value) 0.036 W/m.K
BBA approved
Over 25 years proven use.

Where to use:
CWS is a rectangular glass mineral wool slab, suitable for providing thermal insulation in a variety of different masonry external wall specifications when installed as a full cavity fill during construction.

CWS

R-Value
Thickness
Width
Length
Pack area
Batts
(msq K/W)
(mm)
(mm)
(m)
(m/sq)
per pack
1.39
50
455
1200
10.92
20
1.81
65
455
1200
9.83
18
2.08
75
455
1200
7.64
14
2.36
85
455
1200
6.55
12
2.36
100
455
1200
5.46
10

Masonry cavity wall construction

A cavity wall of brick outer leaf and a 100mm concrete block inner leaf finished internally with 12.5mm Gyproc Wallboard on dabs, and with CWS insulation batts completely filling the wall cavity. U-value calculation assumes 6.7% mortar fraction.


Typical Aircrete
Typical 7N
Dense Concrete
  
115mm
100mm
100mm
100mm
100mm
  
0.11
0.11
0.15
0.51
1.13
  
Thickness of ISOVER CWS to achieve U-value
U-value
   
(mm)
    
(W/msq K
75
75
85
100
100
0.30
75
85
85
100
-
0.29
85
85
100
-
-
0.28
85
100
100
-
-
0.27
-
100
100
-
-
0.26

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