Protect A1 T3 Plus underlay

  • Product: Protect A1 T3 Plus underlay
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BS1192:4

Compliant

BSB

Compliant

Object Data

1 Revision

Last Updated

29/06/2022

Available for:
  • Logo: Autodesk Revit

Protect A1 T3 Plus is a high performance, heavy-duty type HR roofing underlay designed for all cold and warm pitched roofs, developed to overcome the disadvantages of traditional Type 1F, 5U felts and plastic sheet materials and is used in conjunction with high and low level ventilation.

A new and improved fourth generation of the original A1T3 product, Protect A1 T3 Plus provides a class leading product weight of 190gsm, offering a robust secondary line of defence to the roof, whilst offering customers added value for money.

Features & benefits

  • Completely air and water tight, achieving >2.0m hydrostatic head of water resistance.
  • Regularly used for new build and re-roofing schemes.
  • Good nail tear strength and tensile strength.
  • Has unrestricted wind uplift resistance across the UK and Ireland – Zones 1-5 at 345mm batten gauge, without the need for additional sealing tapes.
  • UV and heat resistant.
  • Absorbent undersurface prevents condensate drip-off.
  • Easy to cut and handle, saving time on installation over traditional felts.
  • Does not generate nuisance noise under wind loading.
  • Resistance to wind pressure – 2094Pa, tested to BS 5534.
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