Menu
Menu
Your Cart

35mm Xtratherm Thin-R XT/CW Partial Fill Cavity Insulation (pack of 9)

35mm Xtratherm Thin-R XT/CW Partial Fill Cavity Insulation (pack of 9)
Guide Price
35mm Xtratherm Thin-R XT/CW Partial Fill Cavity Insulation (pack of 9)
Guide Price: £57.90 (£69.48 inc VAT)
Price per m2: £11.91/m2 (£14.30 inc VAT)
5 or more £56.94 (£68.33 inc VAT)
10 or more £55.97 (£67.16 inc VAT)
20 or more £54.62 (£65.54 inc VAT)
  • Product Code: A1-237
  • Delivery Time: 2 - 4 days
  • Brand: Xtratherm
  • (Tech. support: 03712221055)
  • Model and Size: 1200x450mm - 4.86m2
  • Weight: 5.10kg
Our ratings on 20-06-2025:
Google My Business Reviews
4.8 out of 5
Show other thicknesses

35mm Xtratherm Thin-R XT/CW Partial Fill Cavity Insulation (pack of 9)

Thickness: 35mm
Width: 450mm
Length: 1200mm
Pack Coverage: 4.86m2
Density: 30kg/m3
Weight/m2: 1.05kg
Weight: 5.1kg
Thermal Conductivity: 0.022W/mK
R-Value: 1.59m2K/W
Compressive Strength: 120kPa
Water vapour resistivity: 100MN.s/g.m
Surface Spread of Flame: Class 1

Xtratherm ThinR XT/CW Partial Fill Cavity Wall Insulation is the best solution when designers or regulations demand additional thermal insulation in external masonry walls, without a substantial increase in the width of the cavity. Xtratherm Thin-R boards achieve high standards of insulation whilst maintaining a residual cavity to prevent moisture penetration, without a substantial increase in the width of the cavity and of the overall wall thickness.

APPLICATION
  • partial fill cavity wall insulation

CHARACTERISTICS
  • The board comprises a CFC/HCFC free rigid Polyisocyanurate (PIR) core between low emissivity foil facings.
  • Square Edge
  • Clear cavity maintained
  • No exposure restrictions
  • Extra thermal performance Refer to NBS clause F30 155, F30 12

The Low emissivity foil facing on Xtratherm boards improve the thermal performance of the wall. The residual cavity is the most effective method of preventing rain penetrating a wall from the outside. The wall insulation shall be installed in accordance with instructions issued by Xtratherm.

Tongue & Groove board profile is also available upon request.

CERTIFICATION
  • This product is manufactured to EN ISO 9001:2000
  • Product certification: BBA certification no. 07/4407
  • Standard: BS EN 13165
Brand: Xtratherm Model and Size: 2400x1200mm - 34.56m2
Delivery Time: 2 - 3 working days
25mm Xtratherm Safe-R SR/UF Phenolic foam is a superior performance rigid underfloor insulation with enhanced fire performance, consisting of a Class O phenolic foam core with negligible smoke obscuration. Safe-R SR is faced with low emissivity aluminium facings both sides, and has a thermal conduct..
Get Best Price
Brand: Xtratherm Model and Size: 2400x1200mm - 14.4m2
Delivery Time: 2 - 3 working days
60mm Xtratherm Safe-R SR/RS Phenolic foam is a superior performance rigid insulation rainscreen cladding board with enhanced fire performance, consisting of a Class O phenolic foam core with negligible smoke obscuration. Safe-R SR/RS is faced with low emissivity aluminium facings both sides, and has..
Get Best Price
60mm Xtratherm Safe-R SR/PR Phenolic Insulation Board (pack of 5)
Guide Price
Brand: Xtratherm Model and Size: 2400x1200mm - 14.40m2
Delivery Time: 2 - 3 working days
60mm Xtratherm Safe-R is a high-performance rigid insulation designed to provide superior thermal and fire performance. It features a Class O phenolic foam core with minimal smoke obscuration, encased between low emissivity aluminum facings on both sides. With a low thermal conductivity of 0.021W/mK..
Guide Price: £351.40
£421.68 inc VAT
Get Best Price
Brand: Xtratherm Model and Size: 1200x450mm - 3.24m2
Delivery Time: 2 - 3 working days
50mm Xtratherm Safe-R SR/CW Phenolic foam board is a superior performance rigid partial fill cavity insulation board with enhanced fire performance, consisting of a Class O phenolic foam core with negligible smoke obscuration. Safe-R SR/CW is faced with low emissivity aluminium facings both sides, a..
Get Best Price
Brand: Xtratherm Model and Size: 2400x1200mm - 8.64m2
Delivery Time: 1-3 working days
125mm Xtratherm Thin-R FR/ALU Flat Roof PIR Insulation Board is a flat roof insulation with enhanced vapour resistant performance. Thin-R FR/ALU board is faced with low emissivity aluminium facings both sides. Rot proof and will remain effective for the life span of the building. Suitable for use be..
Get Best Price
Brand: Xtratherm Model and Size: 1200x2400mm - 11.52m2
Delivery Time: 1-3 working days
80mm XtroLiner XO/PR board has a core of modified polyisocyanurate (PIR) bonded to low emissivity textured aluminium foil facings. It offers excellent insulation performance with thermal conductivity of 0.021 W/mK and a Class ‘O’ fire rating. XtroLiner XO/PR is CFC & HCFC free and is manufacture..
Get Best Price
This product is listed in the following categories and systems (click to show).