Guidance Table 18: Examples of insulation for timber frame walls with external tile/render/cladding finishes: External finishes of tiles/render/cladding on battens as guidance, timber studs at 600 / 400mm centers with insulation fixed between/over studs with vapour checked integral /separate plasterboard as stated below with 3mm plaster finishes. U-value no worse than 0.21 W/m²k Timber stud Insulation type and Internal insulation/finish (mm) minimum thickness 100 x 50mm 100mm Kingspan Kooltherm 37.5mm Kingspan Kooltherm K18 K12 Insulated Plasterboard. K value 0.023 Framing Board. K Value 0.20 fixed over studs fixed between studs or 100mm Kingspan Thermawall TW55 K value 0.022 fixed between studs 100 x 50mm 90mm Celotex FR5000 40mm Celotex PL4000 K value 0.021 fixed between K value 0.022 fixed with integral plaster studs board and 3mm skim finish fixed over studs 150 x 50mm 80mm Kingspan Kooltherm K12 12.5mm plaster board and 3mm skim Framing Board. K value 0.020 finish fixed over studs fixed between studs 150 x 50mm 80mm Celotex FR5000 25mm Celotex FR5000 K value 0.021 fixed between K value 0.021 fixed with plaster studs board and 3mm skim finish fixed over studs 150 x 50mm 140mm Knauf Earthwool Frame 35mm Knauf XPS Laminated to Therm 32 slab between studs K inside of studs value 0.032 150 x 50mm 140mm Knauf Flexible Slab or 35mm Knauf PIR Laminated to inside OmniFit Slab between studs K of value 0.035 studs Notes. 1. Insulation to be installed in accordance with manufacturer's details subject to the suitability of the wall construction and UK zones for exposure to wind-driven rain in accordance with Diagram 12 and Table 4 of ADC. Important note: Actual insulation requirements and condensation risk analysis to be calculated for a specific project by the insulation manufacturer. Source: Calculated by individual insulation manufacturer.
Guidance Table 18: Examples of insulation for timber frame walls with external tile/render/cladding finishes: External finishes of tiles/render/cladding on battens as guidance, timber studs at 600 / 400mm centers with insulation fixed between/over studs with vapour checked integral /separate plasterboard as stated below with 3mm plaster finishes. U-value no worse than 0.21 W/m²k Timber stud (mm) Insulation type and minimum thickness Internal insulation/finish 100 x 50mm 100mm Kingspan Kooltherm K12 Framing Board. K Value 0.20 fixed between studs or 100mm Kingspan Thermawall TW55 K value 0.022 fixed between studs 37.5mm Kingspan Kooltherm K18 Insulated Plasterboard. K value 0.023 fixed over studs 100 x 50mm 90mm Celotex FR5000 K value 0.021 fixed between studs 40mm Celotex PL4000 K value 0.022 fixed with integral plaster board and 3mm skim finish fixed over studs 150 x 50mm 80mm Kingspan Kooltherm K12 Framing Board. K value 0.020 fixed between studs 12.5mm plaster board and 3mm skim finish fixed over studs 150 x 50mm 80mm Celotex FR5000 K value 0.021 fixed between studs 25mm Celotex FR5000 K value 0.021 fixed with plaster board and 3mm skim finish fixed over studs 150 x 50mm 140mm Knauf Earthwool Frame Therm 32 slab between studs K value 0.032 35mm Knauf XPS Laminated to inside of studs 150 x 50mm 140mm Knauf Flexible Slab or OmniFit Slab between studs K value 0.035 35mm Knauf PIR Laminated to inside of studs Notes. 1. Insulation to be installed in accordance with manufacturer's details subject to the suitability of the wall construction and UK zones for exposure to wind-driven rain in accordance with Diagram 12 and Table 4 of ADC. Important note: Actual insulation requirements and condensation risk analysis to be calculated for a specific project by the insulation manufacturer. Source: Calculated by individual insulation manufacturer.
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