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Self Supporting Roof Underlay

About

Self Supporting Roof Underlay

Self supporting bituminous wall and roof underlay – A.K.A Building Paper.

FEATURES

  • Widely used roof and wall underlay
  • Kraft paper based, bituminous building underlay
  • Highly water resistant
    • It is vapour permeable, meaning that liquid water from the outside is prevented from penetrating but water vapour from the inside can pass through and escape the building envelope.
  • Easy to install. Direct fix or cavity fix.
  • NOTE: Brand supplied may vary depending on availability (specifications & performance remain equal)
  • 1 roll (1250mm wide x 40m long)
  • Coverage: 50sqm
  • Colour: Standard Black

$93.52 exc. GST

  • Widely used roof and wall underlay
  • Kraft paper based, bituminous building underlay
  • Highly water resistant
    • It is vapour permeable, meaning that liquid water from the outside is prevented from penetrating but water vapour from the inside can pass through and escape the building envelope.
  • Easy to install. Direct fix or cavity fix.
  • NOTE: Brand supplied may vary depending on availability (specifications & performance remain equal)
  • 1 roll (1250mm wide x 40m long)
  • Coverage: 50sqm
  • Colour: Standard Black
Weight 0.1 kg
Coverage
  • 50sqm
Choose Your Colour

Applications

Suitable as both roof and wall underlay use. Please see product brochure download for full application suitability and limitations.

For Roof Application:

  • Suitable with masonry tile, metal tile and profiled metal roof cladding.
  • Direct fix or cavity fix.
  • Can be used on roofs up to and including NZS 3604 ‘Extra High’ wind zones.
  • Refer to installation guide regarding underlay support requirements.
  • Will provide temporary weather protection during construction (maximum 7 days), same day coverage recommended.

For Wall Application:

  • Suitable for use with both timber and steel framing, either direct fix or in conjunction with an 18mm minimum drained cavity.
  • Can be used with absorbent wall claddings (e.g. timber, brick or fibre cement) or non-absorbent wall claddings (e.g. metal or plastic).
  • Can be used with masonry veneer in accordance with NZS 3604.
  • Suitable for buildings situated in NZS3604 Building Wind Zones up to and including ‘Very High’.
  • Thermakraft 215 can be used as an air barrier to reduce wind entry and is highly water resistant.
  • Will provide temporary weather protection during construction (maximum 28 days).

 

Self Support Underlay is NOT fire retardant

Dimensions

Each role is 1250mm wide x 40m long and allows for 50m2 actual coverage (allows for laps and joins).

Returns Policy

Please ensure your specifications are correct at time of order. Only un-opened and un-damaged packs will be considered for return. Must be returned in their original packaging. See Returns Policy Page for full terms & conditions.

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