SIPs U-Values
Below is a selection of U-Value calculations for different thicknesses of Sips Eco Panels used in a roof and wall constructions. NB - because the SIP panel provides the bulk of the insulation, altering the roofing finish does not drastically affect the U-Value. All dimensions are nominal and within a tolerance of +/-3mm
Wall Type 1 = 102.5mm brick, 60mm cavity, breathable reflective membrane, SIP wall panel at specified thickness, vapour membrane, 25mm service batten, 12.5mm plasterboard, 3mm skim
Wall Type 2 = 5mm render, 12mm MGO panel exterior, breathable membrane, SIP wall panel at specified thickness, 25mm service battens, 12.5mm vapour check plasterboard, 3mm skim.
Wall Type 3 = 18mm Timber cladding, 50mm ventilated cavity, reflective breathable membrane, SIP wall panel at specified thickness, 25mm service batten, 12.5mm vapour check plasterboard, 3mm skim.
Roof Type 1 = Standard clay tiles, 25mm tiling batten, 25mm counter batten, breathable roofing membrane, SIP roof panel at specified thickness, 25mm service void, vapour check plasterboard, 3mm skim.
Roof Type 2 = Standard clay tiles, 25mm tiling batten, 25mm counter batten, breathable roofing membrane, SIP roof panel at specified thickness, 25mm service void, 50mm Thermaline super, 3mm skim.
|
Thickness: (mm) |
119 |
144 |
169 |
194 |
219 |
|
Internal & External OSB Thickness; (mm) |
11 |
11 |
11 |
11 |
11 |
|
Foam Core Thickness: (mm) |
97 |
122 |
144. |
172 |
197 |
|
Weight: (kg/m2) |
15.3 |
16.3 |
17.4 |
18.4 |
19.4 |
|
U-Value as Wall Type 1: (W/m2) |
0.21 |
0.18 |
0.16 |
0.14 |
0.13 |
|
U-Value as Wall Type 2: (W/m2) |
0.26 |
0.21 |
0.18 |
0.16 |
0.14 |
|
U-Value as Wall Type 3: (W/m2). |
0.23 |
0.20 |
0.17 |
0.15 |
0.14 |
|
U-Value as Roof Type 1: (W/m2). |
|
0.22 |
0.20 |
0.18 |
0.16 |
|
U-Value as Roof Type 2: (W/m2) |
|
0.16 |
0.14 |
0.12 |
0.10 |
