Walls » Partial Fill Cavity » 0.21 Wm2K » Dense Block - Single Layer
| Layers | Thickness [mm] |
Conductivity [W/m2 K] |
Resistance [m2 K/W] |
| Internal surface resistance Plasterboard Air layer between Dabs Concrete block Dense inner leaf Xtratherm XT/CW T&G Cavity unventilated Low E Clay brickwork outer leaf External surface resistance |
- 13 15 100 80 50 105 - |
- 0.180 - 1.150 0.023 - 0.770 - |
0.130 0.069 0.100 0.087 3.478 0.650 0.136 0.040 |
| Upper/lower resistance: Correction for air gaps/mechanical fasteners: |
4.732 / 4.698 W/m2 K 0.000 W/m2 K |
||
Details
of layers with thermal bridging or corrections
for air gaps or mechanical fasteners
| Is there repeating
thermal bridging? Bridging conductivity [W/m K] Bridging material Bridging thickness [mm] Fractional area of bridging [-] Correction for air gaps Correction for mechanical fasteners |
Yes 0.43 Plaster 20 0.2 Not applicable Not applicable |
Product
Specification Clause
Thin-R XT/CW T&G
The partial fill cavity wall insulation shall be Xtratherm Thin-R XT/CW T&G 80mm thick manufactured by Xtratherm, comprising rigid Polyisocyanurate (PIR) core between low emissivity foil facings to achieve a U value of 0.21 W/m2 K
Thin-R XT/CW T&G
The partial fill cavity wall insulation shall be Xtratherm Thin-R XT/CW T&G 80mm thick manufactured by Xtratherm, comprising rigid Polyisocyanurate (PIR) core between low emissivity foil facings to achieve a U value of 0.21 W/m2 K
Walls » Partial Fill Cavity » 0.21 Wm2K » Aerated Block - Single Layer
| Layers | Thickness [mm] |
Conductivity [W/m2 K] |
Resistance [m2 K/W] |
| Internal surface resistance Plasterboard Air layer between Dabs Concrete block - AERATED Xtratherm XT/CWP (Cavity Plus) T&G Cavity unventilated Low E Clay brickwork outer leaf External surface resistance |
- 13 15 100 60 50 105 - |
- 0.180 - 0.110 0.021 - 0.770 - |
0.130 0.069 0.100 0.583 2.857 0.650 0.136 0.040 |
| Upper/lower resistance: Correction for air gaps/mechanical fasteners: |
4.858 / 4.573 W/m2 K 0.000 W/m2 K |
||
Details
of layers with thermal bridging or corrections
for air gaps or mechanical fasteners
Air layer between Dabs
Concrete Block Aerated inner leaf
Air layer between Dabs
| Is there repeating
thermal bridging? Bridging conductivity [W/m K] Bridging material Bridging thickness [mm] Fractional area of bridging [-] Correction for air gaps Correction for mechanical fasteners |
Yes 0.43 Plaster 20 0.2 Not applicable Not applicable |
| Is there repeating
thermal bridging? Bridging conductivity [W/m K] Bridging material Bridging thickness [mm] Fractional area of bridging [-] Correction for air gaps Correction for mechanical fasteners |
Yes 0.88 Mortar - protected 100 0.08 Not applicable Not applicable |
Product
Specification Clause
Thin-R XT/CWP (Cavity Plus) T&G
The partial fill cavity wall insulation shall be Xtratherm Thin-R XT/CWP T&G 60mm thick, with a lambda value of 0.021 W/mK manufactured by Xtratherm, comprising rigid Polyisocyanurate (PIR) core between low emissivity foil facings to achieve a U value of 0.21 W/m2 K
Thin-R XT/CWP (Cavity Plus) T&G
The partial fill cavity wall insulation shall be Xtratherm Thin-R XT/CWP T&G 60mm thick, with a lambda value of 0.021 W/mK manufactured by Xtratherm, comprising rigid Polyisocyanurate (PIR) core between low emissivity foil facings to achieve a U value of 0.21 W/m2 K
Walls » Partial Fill Cavity » 0.18 Wm2K » Dense Block - Dual Layer
| Layers | Thickness [mm] |
Conductivity [W/m2 K] |
Resistance [m2 K/W] |
| Internal surface resistance Plasterboard Xtratherm XT/TL Air layer between Dabs Concrete block Dense inner leaf Xtratherm XT/CW T&G Cavity unventilated Low E Clay brickwork outer leaf External surface resistance |
- 13 38 15 100 60 50 105 - |
- 0.180 0.023 - 1.150 0.023 - 0.770 - |
0.130 0.069 1.652 0.100 0.087 2.609 0.650 0.136 0.040 |
| Upper/lower resistance: Correction for air gaps/mechanical fasteners: |
5.515/ 5.481 W/m2 K 0.000 W/m2 K |
||
Details
of layers with thermal bridging or corrections
for air gaps or mechanical fasteners
| Is there repeating
thermal bridging? Bridging conductivity [W/m K] Bridging material Bridging thickness [mm] Fractional area of bridging [-] Correction for air gaps Correction for mechanical fasteners |
Yes 0.43 Plaster 20 0.2 Not applicable Not applicable |
Product
Specification Clause
Thin-R XT/CW T&G + XT/TL
The partial fill cavity wall insulation shall be Xtratherm Thin-R XT/CW T&G 60mm thick manufactured by Xtratherm, comprising rigid Polyisocyanurate (PIR) core between low emissivity foil facings plus Xtratherm Thin-R XT/TL, 12.5mm plasterboard bonded to 38mm rigid Polyisocyanurate (PIR) with a lambda value of 0.023 W/mK to achieve a U value of 0.18 W/m2 K
Thin-R XT/CW T&G + XT/TL
The partial fill cavity wall insulation shall be Xtratherm Thin-R XT/CW T&G 60mm thick manufactured by Xtratherm, comprising rigid Polyisocyanurate (PIR) core between low emissivity foil facings plus Xtratherm Thin-R XT/TL, 12.5mm plasterboard bonded to 38mm rigid Polyisocyanurate (PIR) with a lambda value of 0.023 W/mK to achieve a U value of 0.18 W/m2 K
Walls » Partial
Fill Cavity » 0.18 Wm2K » Aerated Block - Single Layer
| Layers | Thickness [mm] |
Conductivity [W/m2 K] |
Resistance [m2 K/W] |
| Internal surface resistance Plasterboard Air layer between Dabs Concrete block - Aerated Xtratherm XT/CWP (Cavity Plus) T&G Cavity unventilated Low E Clay brickwork outer leaf External surface resistance |
- 13 15 100 75 50 105 - |
- 0.180 - 0.110 0.021 - 0.770 - |
0.130 0.069 0.100 0.583 3.571 0.650 0.136 0.040 |
| Upper/lower resistance: Correction for air gaps/mechanical fasteners: |
5.574 / 5.287 W/m2 K 0.000 W/m2 K |
||
Details
of layers with thermal bridging or corrections
for air gaps or mechanical fasteners
Air layer between Dabs
Concrete Block Aerated inner leaf
Air layer between Dabs
| Is there repeating
thermal bridging? Bridging conductivity [W/m K] Bridging material Bridging thickness [mm] Fractional area of bridging [-] Correction for air gaps Correction for mechanical fasteners |
Yes 0.43 Plaster 20 0.2 Not applicable Not applicable |
| Is there repeating
thermal bridging? Bridging conductivity [W/m K] Bridging material Bridging thickness [mm] Fractional area of bridging [-] Correction for air gaps Correction for mechanical fasteners |
Yes 0.88 Mortar - protected 100 0.08 Not applicable Not applicable |
Product
Specification Clause
Thin-R XT/CWP (Cavity Plus) T&G + XT/TL
The partial fill cavity wall insulation shall be Xtratherm Thin-R XT/CWP T&G 75mm thick, with a lambda value of 0.021 W/mK manufactured by Xtratherm, comprising rigid Polyisocyanurate (PIR) core between low emissivity foil facings plus Xtratherm Thin-R XT/TL, 12.5mm plasterboard bonded to 20mm rigid Polyisocyanurate (PIR) with a lambda value of 0.023 W/mK to achieve a U value of 0.18 W/m2 K
Thin-R XT/CWP (Cavity Plus) T&G + XT/TL
The partial fill cavity wall insulation shall be Xtratherm Thin-R XT/CWP T&G 75mm thick, with a lambda value of 0.021 W/mK manufactured by Xtratherm, comprising rigid Polyisocyanurate (PIR) core between low emissivity foil facings plus Xtratherm Thin-R XT/TL, 12.5mm plasterboard bonded to 20mm rigid Polyisocyanurate (PIR) with a lambda value of 0.023 W/mK to achieve a U value of 0.18 W/m2 K
Walls » Partial Fill Cavity » 0.15 Wm2K » Dense Block - Dual Layer
| Layers | Thickness [mm] |
Conductivity [W/m2 K] |
Resistance [m2 K/W] |
| Internal surface resistance Plasterboard Xtratherm XT/TL Air layer between Dabs Concrete block Dense inner leaf Xtratherm XT/CW T&G Cavity unventilated Low E Clay brickwork outer leaf External surface resistance |
- 13 50 15 100 75 50 105 - |
- 0.180 0.023 - 1.150 0.023 - 0.770 - |
0.130 0.069 2.174 0.100 0.087 3.261 0.650 0.136 0.040 |
| Upper/lower resistance: Correction for air gaps/mechanical fasteners: |
6.689 / 6.655 W/m2 K 0.000 W/m2 K |
||
Details
of layers with thermal bridging or corrections
for air gaps or mechanical fasteners
| Is there repeating
thermal bridging? Bridging conductivity [W/m K] Bridging material Bridging thickness [mm] Fractional area of bridging [-] Correction for air gaps Correction for mechanical fasteners |
Yes 0.43 Plaster 20 0.2 Not applicable Not applicable |
Product
Specification Clause
Thin-R XT/CWP T&G + XT/TL
The partial fill cavity wall insulation shall be Xtratherm Thin-R XT/CW T&G 75mm thick manufactured by Xtratherm, comprising rigid Polyisocyanurate (PIR) core between low emissivity foil facings plus Xtratherm Thin-R XT/TL, 12.5mm plasterboard bonded to 50mm rigid Polyisocyanurate (PIR) with a lambda value of 0.023 W/mK to achieve a U value of 0.15 W/m2 K
Thin-R XT/CWP T&G + XT/TL
The partial fill cavity wall insulation shall be Xtratherm Thin-R XT/CW T&G 75mm thick manufactured by Xtratherm, comprising rigid Polyisocyanurate (PIR) core between low emissivity foil facings plus Xtratherm Thin-R XT/TL, 12.5mm plasterboard bonded to 50mm rigid Polyisocyanurate (PIR) with a lambda value of 0.023 W/mK to achieve a U value of 0.15 W/m2 K
Walls » Partial Fill Cavity » 0.15 Wm2K » Aerated Block - Dual Layer
| Layers | Thickness [mm] |
Conductivity [W/m2 K] |
Resistance [m2 K/W] |
| Internal surface resistance Plasterboard Xtratherm XT/TL Air layer between Dabs Concrete block Dense inner leaf Xtratherm XT/CWP (Cavity Plus) T&G Cavity unventilated Low E Clay brickwork outer leaf External surface resistance |
- 13 25 15 100 75 50 105 - |
- 0.180 0.023 - 0.110 0.021 - 0.770 - |
0.130 0.069 1.087 0.100 0.583 3.571 0.650 0.136 0.040 |
| Upper/lower resistance: Correction for air gaps/mechanical fasteners: |
6.663 / 6.374 W/m2 K 0.000 W/m2 K |
||
Details
of layers with thermal bridging or corrections
for air gaps or mechanical fasteners
Air layer between Dabs
Concrete Block Aerated inner leaf
Air layer between Dabs
| Is there repeating
thermal bridging? Bridging conductivity [W/m K] Bridging material Bridging thickness [mm] Fractional area of bridging [-] Correction for air gaps Correction for mechanical fasteners |
Yes 0.43 Plaster 20 0.2 Not applicable Not applicable |
| Is there repeating
thermal bridging? Bridging conductivity [W/m K] Bridging material Bridging thickness [mm] Fractional area of bridging [-] Correction for air gaps Correction for mechanical fasteners |
Yes 0.88 Mortar - protected 100 0.08 Not applicable Not applicable |
Product
Specification Clause
Thin-R XT/CWP (Cavity Plus) T&G + XT/TL
The partial fill cavity wall insulation shall be Xtratherm Thin-R XT/CWP T&G 75mm thick, with a lambda value of 0.021 W/mK manufactured by Xtratherm, comprising rigid Polyisocyanurate (PIR) core between low emissivity foil facings plus Xtratherm Thin-R XT/TL, 12.5mm plasterboard bonded to 25mm rigid Polyisocyanurate (PIR) with a lambda value of 0.023 W/mK to achieve a U value of 0.15 W/m2 K
Thin-R XT/CWP (Cavity Plus) T&G + XT/TL
The partial fill cavity wall insulation shall be Xtratherm Thin-R XT/CWP T&G 75mm thick, with a lambda value of 0.021 W/mK manufactured by Xtratherm, comprising rigid Polyisocyanurate (PIR) core between low emissivity foil facings plus Xtratherm Thin-R XT/TL, 12.5mm plasterboard bonded to 25mm rigid Polyisocyanurate (PIR) with a lambda value of 0.023 W/mK to achieve a U value of 0.15 W/m2 K
Walls » Timber
Frame Wall » 0.22 Wm2K » Lined
| Layers | Thickness [mm] |
Conductivity [W/m2 K] |
Resistance [m2 K/W] |
| Internal surface resistance Plasterboard Xtratherm XT/TF Liner Vapour Control layer Fibreglass between studs Plywood sheathing Breathable membrane Cavity unventilated Brick outer leaf External surface resistance |
- 13 25 0 140 12 0 50 105 - |
- 0.180 0.023 1.000 0.035 0.130 - - 0.770 - |
0.130 0.069 0.870 0.000 2.932 0.092 0.001 0.180 0.136 0.040 |
| Upper/lower resistance: Correction for air gaps/mechanical fasteners: |
4.672 / 4.427 W/m2 K 0.004 W/m2 K |
||
Details
of layers with thermal bridging or corrections
for air gaps or mechanical fasteners
| Is there repeating
thermal bridging? Bridging conductivity [W/m K] Bridging material Bridging thickness [mm] Fractional area of bridging [-] Correction for air gaps Correction for mechanical fasteners |
Yes 0.12 studs 140 0.15 Not applicable Not applicable |
Product
Specification Clause
Thin-R XT/TF insulation for Timber Frame Systems
The wall insulation shall be Xtratherm Thin-R XT/TF ___mm thick manufactured to EN ISO 9001:2000 by Xtratherm, comprising a CFC/HCFC free rigid Polyisocyanurate (PIR) core between low emissivity foil facings. The wall insulation shall be installed in accordance with instructions issued by Xtratherm. Refer to NBS clause F30 155, K10 15, K10 205, P10 210
Insulation: Polyisocyanurate Rigid Foam
Thin-R XT/TF insulation for Timber Frame Systems
The wall insulation shall be Xtratherm Thin-R XT/TF ___mm thick manufactured to EN ISO 9001:2000 by Xtratherm, comprising a CFC/HCFC free rigid Polyisocyanurate (PIR) core between low emissivity foil facings. The wall insulation shall be installed in accordance with instructions issued by Xtratherm. Refer to NBS clause F30 155, K10 15, K10 205, P10 210
Insulation: Polyisocyanurate Rigid Foam
Walls
» Timber Frame Wall » 0.22 Wm2K » Sheathing
| Layers | Thickness [mm] |
Conductivity [W/m2 K] |
Resistance [m2 K/W] |
| Internal surface resistance Plasterboard Vapour Control layer Mineral Fibre between Studs Plywood sheathing Xtratherm XT/SB Cavity unventilated - Low E Brick outer leaf External surface resistance |
- 13 0 140 12 25 50 105 - |
- 0.180 1.000 0.040 0.130 0.023 - 0.770 - |
0.130 0.069 0.000 2.692 0.092 1.087 0.650 0.136 0.040 |
| Upper/lower resistance: Correction for air gaps/mechanical fasteners: |
5.169 / 4.897 W/m2 K 0.003 W/m2 K |
||
Details
of layers with thermal bridging or corrections
for air gaps or mechanical fasteners
| Is there repeating
thermal bridging? Bridging conductivity [W/m K] Bridging material Bridging thickness [mm] Fractional area of bridging [-] Correction for air gaps Correction for mechanical fasteners |
Yes 0.12 studs 140 0.15 Air gaps present but no air circulation Not applicable |
Product
Specification Clause
Thin-R XT/TF insulation for Timber Frame Systems
Mineral Fibre + XT/SB The timber frame insulation shall be Mineral Fibre 140mm between studs plus Xtratherm Thin-R XT/SB 25mm rigid Polyisocyanurate (PIR) with a lambda value of 0.023 W/mK to achieve a U value of 0.20 W/m2 K . Refer to NBS clause F30 155, K10 15, K10 205, P10 210
Insulation: Polyisocyanurate Rigid Foam
Thin-R XT/TF insulation for Timber Frame Systems
Mineral Fibre + XT/SB The timber frame insulation shall be Mineral Fibre 140mm between studs plus Xtratherm Thin-R XT/SB 25mm rigid Polyisocyanurate (PIR) with a lambda value of 0.023 W/mK to achieve a U value of 0.20 W/m2 K . Refer to NBS clause F30 155, K10 15, K10 205, P10 210
Insulation: Polyisocyanurate Rigid Foam
Walls
» Timber Frame Wall » 0.18 Wm2K » Lined
| Layers | Thickness [mm] |
Conductivity [W/m2 K] |
Resistance [m2 K/W] |
| Internal surface resistance Plasterboard Vapour Control layer Xtratherm XT/TL Mineral Fibre between Studs Plywood sheathing Cavity unventilated Brick outer leaf External surface resistance |
- 13 0 50 140 12 50 105 - |
- 0.180 1.000 0.023 0.040 0.130 - 0.770 - |
0.130 0.069 0.000 2.174 2.692 0.092 0.180 0.136 0.040 |
| Upper/lower resistance: Correction for air gaps/mechanical fasteners: |
5.812 / 5.514 W/m2 K 0.002 W/m2 K |
||
Details
of layers with thermal bridging or corrections
for air gaps or mechanical fasteners
| Is there repeating
thermal bridging? Bridging conductivity [W/m K] Bridging material Bridging thickness [mm] Fractional area of bridging [-] Correction for air gaps Correction for mechanical fasteners |
Yes 0.12 studs 140 0.15 Air gaps present but no air circulation Not applicable |
Product
Specification Clause
Thin-R XT/TF insulation for Timber Frame Systems
Mineral Fibre + XT/TL The timber frame insulation shall be Mineral Fibre 140mm between studs plus Xtratherm Thin-R XT/TL, 12.5mm plasterboard bonded to 50mm rigid Polyisocyanurate (PIR) with a lambda value of 0.023 W/mK to achieve a U value of 0.18 W/m2 K. Refer to NBS clause F30 155, K10 15, K10 205, P10 210
Insulation: Polyisocyanurate Rigid Foam
Thin-R XT/TF insulation for Timber Frame Systems
Mineral Fibre + XT/TL The timber frame insulation shall be Mineral Fibre 140mm between studs plus Xtratherm Thin-R XT/TL, 12.5mm plasterboard bonded to 50mm rigid Polyisocyanurate (PIR) with a lambda value of 0.023 W/mK to achieve a U value of 0.18 W/m2 K. Refer to NBS clause F30 155, K10 15, K10 205, P10 210
Insulation: Polyisocyanurate Rigid Foam
Walls
» Timber Frame Wall » 0.18 Wm2K » Sheathing
| Layers | Thickness [mm] |
Conductivity [W/m2 K] |
Resistance [m2 K/W] |
| Internal surface resistance Plasterboard Vapour Control layer Mineral Fibre between Studs Plywood sheathing Xtratherm XT/SB Cavity unventilated - Low E Brick outer leaf External surface resistance |
- 13 0 140 12 40 50 105 - |
- 0.180 1.000 0.040 0.130 0.023 - 0.770 - |
0.130 0.069 0.000 2.692 0.092 1.739 0.650 0.136 0.040 |
| Upper/lower resistance: Correction for air gaps/mechanical fasteners: |
5.849 / 5.550 W/m2 K 0.002 W/m2 K |
||
Details
of layers with thermal bridging or corrections
for air gaps or mechanical fasteners
| Is there repeating
thermal bridging? Bridging conductivity [W/m K] Bridging material Bridging thickness [mm] Fractional area of bridging [-] Correction for air gaps Correction for mechanical fasteners |
Yes 0.12 studs 140 0.15 Air gaps present but no air circulation Not applicable |
Product
Specification Clause
Thin-R XT/TF insulation for Timber Frame Systems
Mineral Fibre + XT/SB The timber frame insulation shall be Mineral Fibre 140mm between studs plus Xtratherm Thin-R XT/SB 40mm rigid Polyisocyanurate (PIR) with a lambda value of 0.023 W/mK to achieve a U value of 0.18 W/m2 K . Refer to NBS clause F30 155, K10 15, K10 205, P10 210
Insulation: Polyisocyanurate Rigid Foam
Thin-R XT/TF insulation for Timber Frame Systems
Mineral Fibre + XT/SB The timber frame insulation shall be Mineral Fibre 140mm between studs plus Xtratherm Thin-R XT/SB 40mm rigid Polyisocyanurate (PIR) with a lambda value of 0.023 W/mK to achieve a U value of 0.18 W/m2 K . Refer to NBS clause F30 155, K10 15, K10 205, P10 210
Insulation: Polyisocyanurate Rigid Foam
Walls
» Timber Frame Wall » 0.15 Wm2K » Lined
| Layers | Thickness [mm] |
Conductivity [W/m2 K] |
Resistance [m2 K/W] |
| Internal surface resistance Plasterboard Vapour Control layer Xtratherm XT/TL Mineral Fibre between Studs Plywood sheathing Cavity unventilated Brick outer leaf External surface resistance |
- 13 0 70 140 12 50 105 - |
- 0.180 1.000 0.023 0.035 0.130 - 0.770 - |
0.130 0.069 0.000 3.043 2.932 0.092 0.180 0.136 0.040 |
| Upper/lower resistance: Correction for air gaps/mechanical fasteners: |
7.073 / 6.624 W/m2 K 0.002 W/m2 K |
||
Details
of layers with thermal bridging or corrections
for air gaps or mechanical fasteners
| Is there repeating
thermal bridging? Bridging conductivity [W/m K] Bridging material Bridging thickness [mm] Fractional area of bridging [-] Correction for air gaps Correction for mechanical fasteners |
Yes 0.12 studs 140 0.15 Air gaps present but no air circulation Not applicable |
Product
Specification Clause
Thin-R XT/TF insulation for Timber Frame Systems
Mineral Fibre + XT/TL The timber frame insulation shall be Mineral Fibre 140mm between studs plus Xtratherm Thin-R XT/TL, 12.5mm plasterboard bonded to 70mm rigid Polyisocyanurate (PIR) with a lambda value of 0.023 W/mK to achieve a U value of 0.15 W/m2 K. Refer to NBS clause F30 155, K10 15, K10 205, P10 210
Insulation: Polyisocyanurate Rigid Foam
Thin-R XT/TF insulation for Timber Frame Systems
Mineral Fibre + XT/TL The timber frame insulation shall be Mineral Fibre 140mm between studs plus Xtratherm Thin-R XT/TL, 12.5mm plasterboard bonded to 70mm rigid Polyisocyanurate (PIR) with a lambda value of 0.023 W/mK to achieve a U value of 0.15 W/m2 K. Refer to NBS clause F30 155, K10 15, K10 205, P10 210
Insulation: Polyisocyanurate Rigid Foam
Walls
» Timber Frame Wall » 0.15 Wm2K » Sheathing
| Layers | Thickness [mm] |
Conductivity [W/m2 K] |
Resistance [m2 K/W] |
| Internal surface resistance Plasterboard Vapour Control layer Mineral Fibre between Studs Plywood sheathing Xtratherm XT/SB Cavity unventilated - Low E Brick outer leaf External surface resistance |
- 13 0 140 12 60 50 105 - |
- 0.180 1.000 0.035 0.130 0.023 - 0.770 - |
0.130 0.069 0.000 2.932 0.092 2.609 0.650 0.136 0.040 |
| Upper/lower resistance: Correction for air gaps/mechanical fasteners: |
7.109 / 6.659 W/m2 K 0.002 W/m2 K |
||
Details
of layers with thermal bridging or corrections
for air gaps or mechanical fasteners
| Is there repeating
thermal bridging? Bridging conductivity [W/m K] Bridging material Bridging thickness [mm] Fractional area of bridging [-] Correction for air gaps Correction for mechanical fasteners |
Yes 0.12 studs 140 0.15 Air gaps present but no air circulation Not applicable |
Product
Specification Clause
Thin-R XT/TF insulation for Timber Frame Systems
Mineral Fibre + XT/SB The timber frame insulation shall be Mineral Fibre 140mm between studs plus Xtratherm Thin-R XT/SB 60mm rigid Polyisocyanurate (PIR) with a lambda value of 0.023 W/mK to achieve a U value of 0.15 W/m2 K . Refer to NBS clause F30 155, K10 15, K10 205, P10 210
Insulation: Polyisocyanurate Rigid Foam
Thin-R XT/TF insulation for Timber Frame Systems
Mineral Fibre + XT/SB The timber frame insulation shall be Mineral Fibre 140mm between studs plus Xtratherm Thin-R XT/SB 60mm rigid Polyisocyanurate (PIR) with a lambda value of 0.023 W/mK to achieve a U value of 0.15 W/m2 K . Refer to NBS clause F30 155, K10 15, K10 205, P10 210
Insulation: Polyisocyanurate Rigid Foam
Floors » Solid Floor » 0.15
Wm2K » Range of Perimeter/Area Values
| Floor Perimeter/Area | 0.3 | 0.4 | 0.5 | 0.6 | 0.7 | 0.8 | 0.9 |
| Required Thickness [mm] | ≥100 | ≥110 | ≥120 | ≥120 | ≥120 | ≥125 | ≥125 |
| Available Thicknesses [mm] | 25, 30, 35, 40, 45, 50, 60, 70, 75, 80, 90, 100, 125, 150 | ||||||
Product
Specification Clause
Thin-R Xtratherm Underfloor insulation
The floor insulation shall be Xtratherm Thin-R XT/UF ___mm thick manufactured to EN ISO 9001:2000 by Xtratherm, comprising a CFC/HCFC free rigid Polyisocyanurate (PIR) core between low emissivity foil facings. The floor insulation shall be installed in accordance with instructions issued by Xtratherm. Refer to NBS clause E20 200, E20 30
Thin-R Xtratherm Underfloor insulation
The floor insulation shall be Xtratherm Thin-R XT/UF ___mm thick manufactured to EN ISO 9001:2000 by Xtratherm, comprising a CFC/HCFC free rigid Polyisocyanurate (PIR) core between low emissivity foil facings. The floor insulation shall be installed in accordance with instructions issued by Xtratherm. Refer to NBS clause E20 200, E20 30
Floors » Solid Floor » 0.13
Wm2K » Range of Perimeter/Area Values
| Floor Perimeter/Area | 0.3 | 0.4 | 0.5 | 0.6 | 0.7 | 0.8 | 0.9 |
| Required Thickness [mm] | ≥120 | ≥130 | ≥140 | ≥140 | ≥150 | ≥150 | ≥150 |
| Available Thicknesses [mm] | 25, 30, 35, 40, 45, 50, 60, 70, 75, 80, 90, 100, 125, 150 | ||||||
Product
Specification Clause
Thin-R Xtratherm Underfloor insulation
The floor insulation shall be Xtratherm Thin-R XT/UF ___mm thick manufactured to EN ISO 9001:2000 by Xtratherm, comprising a CFC/HCFC free rigid Polyisocyanurate (PIR) core between low emissivity foil facings. The floor insulation shall be installed in accordance with instructions issued by Xtratherm. Refer to NBS clause E20 200, E20 30
Thin-R Xtratherm Underfloor insulation
The floor insulation shall be Xtratherm Thin-R XT/UF ___mm thick manufactured to EN ISO 9001:2000 by Xtratherm, comprising a CFC/HCFC free rigid Polyisocyanurate (PIR) core between low emissivity foil facings. The floor insulation shall be installed in accordance with instructions issued by Xtratherm. Refer to NBS clause E20 200, E20 30
Floors » Solid Floor » 0.10
Wm2K » Range of Perimeter/Area Values
| Floor Perimeter/Area | 0.3 | 0.4 | 0.5 | 0.6 | 0.7 | 0.8 | 0.9 |
| Required Thickness [mm] | ≥170 | ≥180 | ≥190 | ≥200 | ≥210 | ≥210 | ≥210 |
| Available Thicknesses [mm] | 25, 30, 35, 40, 45, 50, 60, 70, 75, 80, 90, 100, 125, 150 | ||||||
Product
Specification Clause
Thin-R Xtratherm Underfloor insulation
The floor insulation shall be Xtratherm Thin-R XT/UF ___mm thick manufactured to EN ISO 9001:2000 by Xtratherm, comprising a CFC/HCFC free rigid Polyisocyanurate (PIR) core between low emissivity foil facings. The floor insulation shall be installed in accordance with instructions issued by Xtratherm. Refer to NBS clause E20 200, E20 30
Thin-R Xtratherm Underfloor insulation
The floor insulation shall be Xtratherm Thin-R XT/UF ___mm thick manufactured to EN ISO 9001:2000 by Xtratherm, comprising a CFC/HCFC free rigid Polyisocyanurate (PIR) core between low emissivity foil facings. The floor insulation shall be installed in accordance with instructions issued by Xtratherm. Refer to NBS clause E20 200, E20 30
Floors » Suspended Floor » 0.15
Wm2K » Range of Perimeter/Area Values
| Floor Perimeter/Area | 0.3 | 0.4 | 0.5 | 0.6 | 0.7 | 0.8 | 0.9 |
| Required Thickness [mm] | ≥110 | ≥115 | ≥115 | ≥120 | ≥120 | ≥125 | ≥125 |
| Available Thicknesses [mm] | 25, 30, 35, 40, 45, 50, 60, 70, 75, 80, 90, 100, 125, 150 | ||||||
Product
Specification Clause
Thin-R Xtratherm Underfloor insulation
The floor insulation shall be Xtratherm Thin-R XT/UF ___mm thick manufactured to EN ISO 9001:2000 by Xtratherm, comprising a CFC/HCFC free rigid Polyisocyanurate (PIR) core between low emissivity foil facings. The floor insulation shall be installed in accordance with instructions issued by Xtratherm. Refer to NBS clause E20 200, E20 30
Thin-R Xtratherm Underfloor insulation
The floor insulation shall be Xtratherm Thin-R XT/UF ___mm thick manufactured to EN ISO 9001:2000 by Xtratherm, comprising a CFC/HCFC free rigid Polyisocyanurate (PIR) core between low emissivity foil facings. The floor insulation shall be installed in accordance with instructions issued by Xtratherm. Refer to NBS clause E20 200, E20 30
Floors » Suspended Floor » 0.13
Wm2K » Range of Perimeter/Area Values
| Floor Perimeter/Area | 0.3 | 0.4 | 0.5 | 0.6 | 0.7 | 0.8 | 0.9 |
| Required Thickness [mm] | ≥130 | ≥135 | ≥140 | ≥140 | ≥145 | ≥145 | ≥145 |
| Available Thicknesses [mm] | 25, 30, 35, 40, 45, 50, 60, 70, 75, 80, 90, 100, 125, 150 | ||||||
Product
Specification Clause
Thin-R Xtratherm Underfloor insulation
The floor insulation shall be Xtratherm Thin-R XT/UF ___mm thick manufactured to EN ISO 9001:2000 by Xtratherm, comprising a CFC/HCFC free rigid Polyisocyanurate (PIR) core between low emissivity foil facings. The floor insulation shall be installed in accordance with instructions issued by Xtratherm. Refer to NBS clause E20 200, E20 30
Thin-R Xtratherm Underfloor insulation
The floor insulation shall be Xtratherm Thin-R XT/UF ___mm thick manufactured to EN ISO 9001:2000 by Xtratherm, comprising a CFC/HCFC free rigid Polyisocyanurate (PIR) core between low emissivity foil facings. The floor insulation shall be installed in accordance with instructions issued by Xtratherm. Refer to NBS clause E20 200, E20 30
Floors » Suspended Floor » 0.10
Wm2K » Range of Perimeter/Area Values
| Floor Perimeter/Area | 0.3 | 0.4 | 0.5 | 0.6 | 0.7 | 0.8 | 0.9 |
| Required Thickness [mm] | ≥180 | ≥185 | ≥190 | ≥190 | ≥195 | ≥195 | ≥195 |
| Available Thicknesses [mm] | 25, 30, 35, 40, 45, 50, 60, 70, 75, 80, 90, 100, 125, 150 | ||||||
Product
Specification Clause
Thin-R Xtratherm Underfloor insulation
The floor insulation shall be Xtratherm Thin-R XT/UF ___mm thick manufactured to EN ISO 9001:2000 by Xtratherm, comprising a CFC/HCFC free rigid Polyisocyanurate (PIR) core between low emissivity foil facings. The floor insulation shall be installed in accordance with instructions issued by Xtratherm. Refer to NBS clause E20 200, E20 30
Thin-R Xtratherm Underfloor insulation
The floor insulation shall be Xtratherm Thin-R XT/UF ___mm thick manufactured to EN ISO 9001:2000 by Xtratherm, comprising a CFC/HCFC free rigid Polyisocyanurate (PIR) core between low emissivity foil facings. The floor insulation shall be installed in accordance with instructions issued by Xtratherm. Refer to NBS clause E20 200, E20 30
Roofs » 0.16 Wm2K » Insulating Between & Below Rafters
| Layers | Thickness [mm] |
Conductivity [W/m2 K] |
Resistance [m2 K/W] |
||
| Outer Resistance Tile/Batten Space Breather Membrane Unvented Void below Breather min 25mm Xtratherm XT/PR between rafters 600cs Xtratherm XT/TL below rafters Vapour Control layer Plasterboard Internal surface resistance |
- 1 1 25 30 125 0 13 - |
- 1.000 1.000 0.023 - 0.023 1.000 0.180 - |
0.100 0.001 0.001 0.532 1.304 3.921 0.000 0.069 0.100 |
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|
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Details
of layers with thermal bridging or corrections
for air gaps or mechanical fasteners
Xtratherm XT/PR between rafters 600cs
Unvented voids below breather [min 25mm]
Xtratherm XT/PR between rafters 600cs
| Is there repeating
thermal bridging? Bridging conductivity [W/m K] Bridging material Bridging thickness [mm] Fractional area of bridging [-] Correction for air gaps Correction for mechanical fasteners |
Yes 0.13 Timber Joists 125 0.083 Air gaps present but no air circulation Not applicable |
| Is there repeating
thermal bridging? Bridging conductivity [W/m K] Bridging material Bridging thickness [mm] Fractional area of bridging [-] Correction for air gaps Correction for mechanical fasteners |
Yes 0.13 Softwood 25 0.083 Not applicable Not applicable |
Product
Specification Clause
Thin-R XT/PR insulation for Sloped/Pitched Roofs
Thin-R XT/PR + XT/TL
The pitched roof insulation shall be Xtratherm Thin-R XT/PR 125mm thick manufactured by Xtratherm, comprising rigid Polyisocyanurate (PIR) core between low emissivity foil facings plus Xtratherm Thin-R XT/TL (MF), 12.5mm plasterboard bonded to 30mm rigid Polyisocyanurate (PIR) with a lambda value of 0.023 W/mK to achieve a U value of 0.16 W/m2 K
Thin-R XT/PR insulation for Sloped/Pitched Roofs
Thin-R XT/PR + XT/TL
The pitched roof insulation shall be Xtratherm Thin-R XT/PR 125mm thick manufactured by Xtratherm, comprising rigid Polyisocyanurate (PIR) core between low emissivity foil facings plus Xtratherm Thin-R XT/TL (MF), 12.5mm plasterboard bonded to 30mm rigid Polyisocyanurate (PIR) with a lambda value of 0.023 W/mK to achieve a U value of 0.16 W/m2 K
Roofs » 0.13 Wm2K » Insulating Between & Above Rafters
| Layers | Thickness [mm] |
Conductivity [W/m2 K] |
Resistance [m2 K/W] |
||
| Outer Resistance Tile/Batten Space Breather Membrane Xtratherm XT/SK T&G over rafters Xtratherm XT/PR between rafters 600cs Air layer, upward heat flow, emissivities 0.05 / 0.9 Vapour Control layer Plasterboard Internal surface resistance |
- 1 1 80 100 25 0 13 - |
- 1.000 1.000 0.023 0.023 - 1.000 0.180 - |
0.100 0.001 0.001 3.478 3.169 0.320 0.000 0.069 0.100 |
||
|
|||||
Details
of layers with thermal bridging or corrections
for air gaps or mechanical fasteners
Xtratherm XT/PR between rafters 600cs
Air layer, upward heat flow, emissivities 0.05 / 0.9
Xtratherm XT/PR between rafters 600cs
| Is there repeating
thermal bridging? Bridging conductivity [W/m K] Bridging material Bridging thickness [mm] Fractional area of bridging [-] Correction for air gaps Correction for mechanical fasteners |
Yes 0.13 Timber Joists 100 0.08 Air gaps present but no air circulation Not applicable |
| Is there repeating
thermal bridging? Bridging conductivity [W/m K] Bridging material Bridging thickness [mm] Fractional area of bridging [-] Correction for air gaps Correction for mechanical fasteners |
Yes 0.13 Softwood 25 0.08 Not applicable Not applicable |
Product
Specification Clause
Thin-R XT/PR insulation for Sloped/Pitched Roofs
Thin-R XT/PR + XT/SK T&G
The pitched roof insulation shall be Xtratherm Thin-R XT/PR 100mm thick manufactured by Xtratherm, comprising rigid Polyisocyanurate (PIR) core between low emissivity foil facings plus Xtratherm Thin-R XT/SK T&G, 80mm rigid Polyisocyanurate (PIR) Sarking Board with a lambda value of 0.023 W/mK to achieve a U value of 0.13 W/m2 K
Thin-R XT/PR insulation for Sloped/Pitched Roofs
Thin-R XT/PR + XT/SK T&G
The pitched roof insulation shall be Xtratherm Thin-R XT/PR 100mm thick manufactured by Xtratherm, comprising rigid Polyisocyanurate (PIR) core between low emissivity foil facings plus Xtratherm Thin-R XT/SK T&G, 80mm rigid Polyisocyanurate (PIR) Sarking Board with a lambda value of 0.023 W/mK to achieve a U value of 0.13 W/m2 K
Roofs » 0.10 Wm2K » Insulating Between & Above Rafters
| Layers | Thickness [mm] |
Conductivity [W/m2 K] |
Resistance [m2 K/W] |
||
| Outer Resistance Tile/Batten Space Breather Membrane Xtratherm XT/SK T&G over rafters Xtratherm XT/PR between rafters 600cs Air layer, upward heat flow, emissivities 0.05 / 0.9 Vapour Control layer Plasterboard Internal surface resistance |
- 1 1 100 150 25 0 13 - |
- 1.000 1.000 0.023 0.023 - 1.000 0.180 - |
0.100 0.001 0.001 4.348 4.753 0.320 0.000 0.069 0.100 |
||
|
|||||
Details
of layers with thermal bridging or corrections
for air gaps or mechanical fasteners
Xtratherm XT/PR between rafters 600cs
Air layer, upward heat flow, emissivities 0.05 / 0.9
Xtratherm XT/PR between rafters 600cs
| Is there repeating
thermal bridging? Bridging conductivity [W/m K] Bridging material Bridging thickness [mm] Fractional area of bridging [-] Correction for air gaps Correction for mechanical fasteners |
Yes 0.13 Timber Joists 150 0.08 Air gaps present but no air circulation Not applicable |
| Is there repeating
thermal bridging? Bridging conductivity [W/m K] Bridging material Bridging thickness [mm] Fractional area of bridging [-] Correction for air gaps Correction for mechanical fasteners |
Yes 0.13 Softwood 25 0.08 Not applicable Not applicable |
Product
Specification Clause
Thin-R XT/PR insulation for Sloped/Pitched Roofs
Thin-R XT/PR + XT/SK T&G
The pitched roof insulation shall be Xtratherm Thin-R XT/PR 150mm thick manufactured by Xtratherm, comprising rigid Polyisocyanurate (PIR) core between low emissivity foil facings plus Xtratherm Thin-R XT/SK T&G,100mm rigid Polyisocyanurate (PIR) Sarking Board with a lambda value of 0.023 W/mK to achieve a U value of 0.10 W/m2 K
Thin-R XT/PR insulation for Sloped/Pitched Roofs
Thin-R XT/PR + XT/SK T&G
The pitched roof insulation shall be Xtratherm Thin-R XT/PR 150mm thick manufactured by Xtratherm, comprising rigid Polyisocyanurate (PIR) core between low emissivity foil facings plus Xtratherm Thin-R XT/SK T&G,100mm rigid Polyisocyanurate (PIR) Sarking Board with a lambda value of 0.023 W/mK to achieve a U value of 0.10 W/m2 K
Ceilings » 0.16 Wm2K » Mineral Fibre between joists & Liner below
| Layers | Thickness [mm] |
Conductivity [W/m2 K] |
Resistance [m2 K/W] |
||
| External surface resistance Roof space Mineral wool quilt between joists 600cs Xtratherm XT/TL under joists Plasterboard Internal surface resistance |
- - 200 40 13 - |
- - 0.040 0.023 0.180 - |
0.040 0.200 3.910 1.739 0.069 0.100 |
||
|
|||||
Details
of layers with thermal bridging or corrections
for air gaps or mechanical fasteners
Mineral wool quilt between joists 600cs
Mineral wool quilt between joists 600cs
| Is there repeating
thermal bridging? Bridging conductivity [W/m K] Bridging material Bridging thickness [mm] Fractional area of bridging [-] Correction for air gaps Correction for mechanical fasteners |
Yes 0.13 Timber Joists 150 0.08 Not applicable Not applicable |
Product
Specification Clause
Thin-R XT/PF insulation for Sloped/Pitched Roofs
Mineral Fibre + XT/TL
The ceiling insulation shall be Mineral Fibre 200mm between joists plus Xtratherm Thin-R XT/TL, 12.5mm plasterboard bonded to 40mm rigid Polyisocyanurate (PIR) with a lambda value of 0.023 W/mK under joists to achieve a U value of 0.16 W/m2 K
Thin-R XT/PF insulation for Sloped/Pitched Roofs
Mineral Fibre + XT/TL
The ceiling insulation shall be Mineral Fibre 200mm between joists plus Xtratherm Thin-R XT/TL, 12.5mm plasterboard bonded to 40mm rigid Polyisocyanurate (PIR) with a lambda value of 0.023 W/mK under joists to achieve a U value of 0.16 W/m2 K
Ceilings » 0.13 Wm2K » Mineral Fibre between & above joists & Liner below
| Layers | Thickness [mm] |
Conductivity [W/m2 K] |
Resistance [m2 K/W] |
||
| External surface resistance Roof space Mineral wool quilt over joists Mineral wool quilt between joists 600cs Xtratherm XT/TL under joists Plasterboard Internal surface resistance |
- - 100 150 40 13 - |
- - 0.040 0.040 0.023 0.180 - |
0.040 0.200 3.500 3.178 1.739 0.069 0.100 |
||
|
|||||
Details
of layers with thermal bridging or corrections
for air gaps or mechanical fasteners
Mineral wool quilt between joists 600cs
Mineral wool quilt between joists 600cs
| Is there repeating
thermal bridging? Bridging conductivity [W/m K] Bridging material Bridging thickness [mm] Fractional area of bridging [-] Correction for air gaps Correction for mechanical fasteners |
Yes 0.13 Timber Joists 150 0.08 Not applicable Not applicable |
Product
Specification Clause
Thin-R XT/PF insulation for Sloped/Pitched Roofs
Mineral Fibre + XT/TL
The ceiling insulation shall be Mineral Fibre 150mm between joists and 100mm over joists plus Xtratherm Thin-R XT/TL, 12.5mm plasterboard bonded to 40mm rigid Polyisocyanurate (PIR) with a lambda value of 0.023 W/mK under joists to achieve a U value of 0.13 W/m2 K
Thin-R XT/PF insulation for Sloped/Pitched Roofs
Mineral Fibre + XT/TL
The ceiling insulation shall be Mineral Fibre 150mm between joists and 100mm over joists plus Xtratherm Thin-R XT/TL, 12.5mm plasterboard bonded to 40mm rigid Polyisocyanurate (PIR) with a lambda value of 0.023 W/mK under joists to achieve a U value of 0.13 W/m2 K
Ceilings » 0.10 Wm2K » Mineral Fibre between & above joists & Liner below
| Layers | Thickness [mm] |
Conductivity [W/m2 K] |
Resistance [m2 K/W] |
||
| External surface resistance Roof space Mineral wool quilt over joists Mineral wool quilt between joists 600cs Xtratherm XT/TL under joists Plasterboard Internal surface resistance |
- - 150 150 60 13 - |
- - 0.040 0.040 0.023 0.180 - |
0.040 0.200 3.750 3.178 2.609 0.069 0.100 |
||
|
|||||
Details
of layers with thermal bridging or corrections
for air gaps or mechanical fasteners
Mineral Wool quilt between joists 600cs
Mineral Wool quilt between joists 600cs
| Is there repeating
thermal bridging? Bridging conductivity [W/mK] Bridging material Bridging thickness [mm] Fractional area of bridging [-] Correction for air gaps Correction for mechanical fasteners |
Yes 0.13 Timber Joists 150 0.08 Not applicable Not applicable |
Product
Specification Clause
Thin-R XT/TL insulation for Ceilings
Mineral Fibre + XT/TL
The ceiling insulation shall be Mineral Fibre 150mm between joists and 150mm over joists plus Xtratherm Thin-R XT/TL, 12.5mm plasterboard bonded to 60mm rigid Polyisocyanurate (PIR) with a lambda value of 0.023 W/mK under joists to achieve a U value of 0.10 W/m2 K
Thin-R XT/TL insulation for Ceilings
Mineral Fibre + XT/TL
The ceiling insulation shall be Mineral Fibre 150mm between joists and 150mm over joists plus Xtratherm Thin-R XT/TL, 12.5mm plasterboard bonded to 60mm rigid Polyisocyanurate (PIR) with a lambda value of 0.023 W/mK under joists to achieve a U value of 0.10 W/m2 K
Every effort has been made to ensure this information is correct, but we accept no repsonsibility for any errors arising from your use of these numbers. If you need any information about this product or any of our other products, please contact Xtratherm and we'll be happy to help you with your specific requirements.
