A1 Impermeable Felt HR Roofing Underlay by Protect - 30m x 1.5m Roll

Product Code: A1-30
Brand: Protect
Est. Delivery: 2-3 Days
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All delivery charges are included in the final shopping basket and are dependent on the products Scottish Highlands & the Islands where additional shipping charges will apply.

Please note that not all products will incur an additional delivery charge to the Scottish Highlands & the Islands – this is based on the costs from the manufacturer, distributor or courier providing shipping on our behalf. If your delivery address is in the Scottish Highlandsand Islands, a member of our helpline team will contact you prior to processing your order should an additional delivery charge apply.

While we make every effort to ensure orders are delivered by the date required, we cannot guarantee availability from the manufacturer or the manufacturer's delivery schedules.

Any variation to web delivery date given will be advised to you by email or telephone. If we are unable to make delivery because access is not possible, we reserve the right to make a failed delivery charge.

£34.55 Incl. VAT
£28.79 Ex. VAT
Bulk order for discounts
  • 1+
    £34.55 Incl. VAT
    £28.79 Ex. VAT
  • 10+
    £32.30 Incl. VAT
    £26.92 Ex. VAT
  • 49+
    £30.77 Incl. VAT
    £25.64 Ex. VAT

Product Description

Protect A1 can be used for all pitched roof constructions (tiled and slated), whether the insulation is at ceiling joist level or at rafter level. It is a twin-ply construction of polypropylene non-woven spunbond layer and PP film.

Protect A1 is a ‘third-generation’ roofing underlay which has been developed specifically to overcome the disadvantages of traditional Type 1F felts and second generation plastic sheet materials.

Please note this product does not require the joints & laps to be taped but must be battened correctly.


Length: 30m.
Width: 1.5m.
Roll size: 45m2.
Roll weight: 7kg.
Weight: 145gsm.
Brand: Protect.


  • Completely waterproof.
  • Can be used as a temporary roof covering.
  • Excellent nail tear strength and tensile strength.
  • Has unrestricted use for wind uplift in all exposure conditions in the UK and Ireland. Suitable for use in zones 1-5 at 345mm batten gauge.
  • UV and heat stable.
  • Absorbent undersurface prevents condensate drip-off.
  • Embossed dark grey upper surface reduces glare and takes a chalk line marking.
  • Does not generate noise under wind gusting.
  • Easy to cut, clean, light to handle and unaffected by temperature changes.



Width 1500mm Length 30m


Permeability Air Tight Roll Size 45m2

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A1 Impermeable Felt HR Roofing Underlay by Protect - 30m x 1.5m Roll

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A1 Impermeable Felt HR Roofing Underlay by Protect - 30m x 1.5m Roll

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