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Polyfoam Raftersqueeze

For thermal insulation of pitched roofs

Description

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

Polyfoam Raftersqueeze is supplied straight edged and has a series of grooves along each long edge. The grooves are designed to compress during installation to provide a friction fit between rafters.

Application

Polyfoam Raftersqueeze is used for thermal insulation of pitched roofs. It is designed to be friction fitted between rafters at 600mm centres, and allows for some timber variation.

Polyfoam Raftersqueeze is often used in combination with Polyfoam Pitched Roofboard.

Standards

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

Durability

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

Moisture absorption

Polyfoam Raftersqueeze has a moisture absorption of 0.3% by volume.

Polyfoam Raftersqueeze
 
Performance                                

Thermal Performance

Polyfoam Raftersqueeze has a thermal conductivity of 0.030 W/mK.

 
Benefits                                        
  • Friction fit between rafters
  • Compressible for easy installation
  • Allows for some variation in timber centres
  • Excellent thermal performance
  • Lightweight and easy to install
Downloads                                   

Environmental

Polyfoam Raftersqueeze 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 Raftersqueeze is non bio-degradable.

Polyfoam Raftersqueeze is 100% recyclable.

Compression resistance

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

The grooves along each long edge allow a degree of compression across the width of the board. This allows it to be friction fitted between rafters.

Moisture resistance

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

Vapour Resistivity

Polyfoam Raftersqueeze 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 Raftersqueeze 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)
75 0.030 2.50 30 200 1200 565
65 0.030 2.15 30 200 1200 565
50 0.030 1.65 30 200 1200 565

All dimensions are nominal

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