JAS Timber

DALPRO ROOFING FELT - Breathable Sarking Membrane - 1.0 x 50 Metre Black/Gre

Daltex Dalpro Roofing Felt 1.5M.
  • Daltex Dalpro Roofing Felt 1.5M.
  • dalpro roof section
  • Dalpro Roofing Felt - surface
Product code 47010430-Dalpro-1M.
  • £48.70
  • £58.44


DALTEX® Dalpro® is a 3-layer low resistance, vapour permeable air barrier roofing underslating felt, which resists the penetration of air into a roof structure. It is a semi-permeable polyp­ro­pylene composite sarking felt, manufactured in the UK to the highest standards under the ISO 9001 quality system.

Daltex® Dalpro®  Underlay Roofing Felt allows the ready transfer of moisture through the underlay as a breathable roof felt, thereby reducing the risk of condensation in roofs. In warm pitched roofs and UK cold pitched roofs, when Daltex® Dalpro® Roofing Felt is installed, there is no need to ventilate the roof space,­ providing the fabric is installed in accordance with the relevant Agrément Certificate instruc­tions, as the vapour permeability allows moisture to diffuse through the underlay.­ Daltex® Dalpro® Roofing Felt is suitable for fully supported or unsupported roofing appli­cations, and can also be used in conventional ventilated roof construc­tion.

Daltex® Dalpro® Slaters Roofing Felt has optimum flammability resistance, complying with Class D of European Standard EN 11925-2. It is durable, flexible & lightweight allowing for easy instal­la­tion, and offers temporary protection against wind driven rain, snow & dust, and can be used with slate or roof-tiles.

Don & Low are leading British manuf­ac­turers of roofing underlay felts, walling and flooring breather membranes, with over 10 years experience in supplying the Construction Industry. The continual development of products ensures that they can meet and exceed market & legislative requ­ire­ments.­ 

Dalpro Technical Data
Mass (per unit area) : EN 1849-2 125g/m2
Tensile Strength : EN 12311-1 Machine: 290 N/50mm
Cross: 160 N/50mm
Tear Resistance : EN 12310-1 Machine: 140 N
Cross: 130 N
Water Vapour Transmis­sion : EN 12572 1100 g/m2/24 hrs
Resistance to Water Penetration : EN 1928 W1
Flame Retardancy : EN 13501-1 Class D - When tested to EN 11925-2

Technical Data Sheets in JAS Library -
BBA Certificate 07-4442-1   BBA Certificate 07-4442-2   IAB Certificate 07-0272   TECHNICAL DATA SHEET 

General Installation Information -

Dalpro® Roofing Felt should be installed as detailed in national building regulations for sarking felts,­ and relevant Agrément Certi­fica­tion for this product – see the Certi­fica­tion numbers above. Any guidelines concerning installation that are supplied with the product should be consulted prior to laying.
For general information – Dalpro® fabric should be unrolled horizontally across the roof, colour side up, and draped a minimum of 150mm onto the proprietary eaves carrier. The roofing membrane should be fixed to the rafters or boarded sarking, subsequent rows should be lapped over by 150mm to shed water out and down the slope. Adjacent rolls should be lapped by 100mm.

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Payment - We can now take Debit Card, BACS, Cash, Cheque or Credit Card payment online for Dalpro 1 M. Roofing Felts
JAS Delivery of Dalpro Roofing Membranes on our van in Lancashire & the North-West, from £5 +vat, or £1 +vat per mile - poa (from £30 Manchester, £35 Lancaster, £45 Liverpool, £60 Leeds, all +vat;)

Approximate weights for carriage of Dalpro 1 Metre Roofing Felt is 6.25 Kg + packaging;

Carrier Delivery of Dalpro Roofing Material is possible from £11.40 +vat - up to 10Kg/2.4M., then 50p per Kg;
2.4 to 3.0 M. +£15 +vat! Anything longer is not suitable unless in pallet quantities;
 ( Zone A mainland - poa other zones)

Direct Delivery of Dalpro Roofing Felts is possible from many suppliers.

(Please tell us the post-code for your enquiry about Dalpro Roofing Felt so that we can quote for delivery.)

- Please phone us at JAS Timber Merchants with any enquiries on Dalpro 1 Metre Roofing Membrane - 01254 54000

E. & O.E. see T&C - We do try to keep prices and specifi­cations of 1 M. Dalpro Membrane correct, but mistakes can be made!