Page 83 - Glow Insulation Product Guide
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PIR (WALLS)
1 - Solid stone wall
2 - Existing plaster finish
3 - Battens on a strip of DPC
4 - Quinn Therm QW or QL-Foil boards 5 - Plasterboard
6 - Internal finish
U-value results below based upon wall construction shown:
Masonry (see table); 15mm plaster; 25mm
cavity; Quinn Therm QW with 12.5mm plasterboard or Quinn Therm QL-Foil insulated plasterboard. Calculations performed to BS EN ISO 6946, taking account of repeating thermal bridges.
Required thickness of Quinn Therm QW or QL-Foil
6
5
4
3
2
1
QW or QL-Foil insulation fixed to timber battens @ 400mm centres.
Masonry type
215mm Brick
500mm Stone
215mm Dense Block
215mm Quinn Lite (B5)
thickness (mm)
37.5 42.5 50.5 62.5 72.5 82.5 92.5
102.5 112.5
U-value (W/m 2K)
0.44 0.43 0.47 0.32 0.41 0.40 0.43 0.30 0.35 0.34 0.37 0.27 0.29 0.29 0.30 0.24 0.26 0.26 0.27 0.21 0.23 0.23 0.24 0.19 0.21 0.21 0.22 0.18 0.19 0.19 0.20 0.17 0.18 0.17 0.18 0.15
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