Knauf Insulation » Products » Polyfoam XPS » Polyfoam Pitched Roofing » Polyfoam Sarking Board System inc Raftersqueeze

Polyfoam Sarking Board System inc Raftersqueeze

For the thermal insulation of warm pitched roofs

Description

Polyfoam Pitched Roofboard is a high performance, 100% ozone friendly, extruded polystyrene, rigid insulation board.

Polyfoam Pitched Roofboard is supplied with interlocking rebated edges.

Application

Polyfoam Pitched Roofboard is for the thermal insulation of warm pitched roofs. Polyfoam Pitched Roofboard is fixed above the rafters. The shiplap edge details do not have to meet directly on top of rafters, making Polyfoam Pitched Roofboard very easy to install and suitable for all rafter spacings.

Polyfoam Pitched Roofboard is often used in combination with Polyfoam Raftersqueeze between the rafters to provide the required level of thermal performance.

Standards

Polyfoam Pitched Roofboard is manufactured in accordance with BSI Quality Assurance Standard BS EN ISO 9001: 2000

Certification

Polyfoam Pitched Roofboard is certified by BBA Certificate 95/3097.

Polyfoam Sarking Board
 
Performance                                

Thermal Performance

Polyfoam Pitched Roofboard has a thermal conductivity of 0.029 W/mK.
 
Benefits                                        
  • Thermally efficient
  • Structurally stable
  • Rigid yet lightweight
  • Easy to install – the shiplap rebates do not have to be supported on rafters
Downloads                                   

Durability

The continuous service temperature limits of Polyfoam Pitched Roofboard are -50 to +75º C.

Environmental

Polyfoam Pitched Roofboard is free from CFCs, HCFCs and any other material with ozone depletion potential in its manufacture and content and represents no known threat to the environment. Polyfoam Pitched Roofboard is non bio-degradable.

Polyfoam Pitched Roofboard is 100% recyclable.

Compression resistance

The rigidity of Polyfoam Pitched Roofboard makes the board easy to handle and less prone to site damage than less robust materials.

Moisture absorption

Polyfoam Pitched Roofboard has a moisture absorption of 0.3% by volume.

Moisture resistance

Polyfoam Pitched Roofboard is highly resistant to moisture absorption and will perform as stated if exposed to condensation or other moisture in use.

Vapour Resistivity

Polyfoam Pitched Roofboard has a vapour resistivity of 480 MNs/gm.

Handling and storage

The boards are easy to handle and nonirritant, no special protective clothing is required when installing them.

Polyfoam Pitched Roofboard is supplied in polythene packs, labelled with identifying product and manufacturing data.

Ensure the boards are not stored close to open flame or other ignition source, also avoid volatile compounds and chemicals such as solvents.

Polyfoam products should not be left exposed to prolonged sunlight as this will result in surface degradation. Where outside storage for extended periods is required cover with opaque/light coloured sheeting.

Product Data

Thickness (mm) Thermal conductivity (W/mK) Thermal resistance (m2K/W) Nominal Density (kg/m3) Minimum Strength (kPa) Length (mm) Width (mm)
150 0.029 / 0.030 5.05 30 200 2400 600
140 0.029 / 0.030 4.75 30 200 2400 600
75(1) 0.029 2.55 30 200 2400 600

(1) T-shaped overlay board only. All dimensions are nominal.

Website Options

Links To Other Country Sites

Related Applications

International