Sisalkraft Building Paper 420

From  £33.59  inc VAT
From  £27.99  ex VAT
In stock
From  £33.59  inc VAT
From  £27.99  ex VAT
Product Description

Building Paper 420 1000mm x 25m

Need to discusss your enquiry further? Please contact our customer services team on 0330 123 1761, who will be happy to help.

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Building Paper 420 is a waterproof building paper meeting the requirements of BS 1521 A1F. It is used as a waterproofing/weatherproofing layer in building construction as a vapour check membrane and for temporary protection and separation where a tough, water - resistant material is needed. Sisalkraft 420 is a traditional waterproof building paper with two plies of wet - strength pure Kraft paper laminated together with bitumen and reinforced with glass fibre yarn. 

Roll - 1000mm x 25m

Key Features
  • Meets BS 1521 A1F.
  • Moisture vapour resistance 41 MNs/g.
  • Traditional materials of proven performance.
  • Condensation - resistant, non - slip, non - glare finish.
  • Heavy duty grades incorporate a reinforced bitumen core to assist sealing around fixings.
  • Designed to utilise materials from renewable resources.
  • Quality assured UK manufacture to British standards.
  • Easy to form, fix and seal without specialised tools or material.
  • Can be folded and cut easily using a knife or scissors.
Orders and Delivery

Orders and Delivery

Free deliveries on orders over £250.00 Inc VAT. For orders under £250.00 Inc VAT, a £24.00 Inc VAT delivery fee applies.

When ordering on line you can specify the date of delivery, however we would not be able to specify the time of delivery on that day.

♦ Please note that we have a number of large vehicles, including articulated vehicles that may be used for delivery. Please advise us in the comments on your order if access to the delivery address is limited.

♦ Due to insurance guidelines, delivery personnel are unable to enter private residences. Delivery will be as far as possible to the kerbside of the delivery address. The recipient of the products is responsible for any additional lifting once the delivery has been made. Please bear in mind that Insulation products can be bulky and / or heavy.

♦ The delivery driver will require a signature to confirm the goods have been received.


† Unfortunately we, Insulation Express, cannot deliver to the Highlands & Islands of the UK. However we will be happy to deliver to a freight forwarding company on your behalf.

Returns and Refunds

Returns and Refunds

In the unlikely event that you need to return an item, please contact our team on 0330 123 1885 within 14 days of accepting delivery of the item. Restocking charges may apply. We will discuss this with you upon receipt of the cancellation request. Restocking charges will be applied where the products are no longer required AND NOT for goods returned because either defective or damaged. We usually charge 25% of value (minimum £25.00).

Please note that we cannot accept returns on special orders. Special orders may consist of items sent via third party shipping companies or made to measure products. If you are unsure on whether or not your item is a special order, please contact us on 0330 123 1885 prior to placing the order.

Free delivery on orders over £250! Free delivery on orders over £250 Terms and Conditions apply

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