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Thermaseal Weatherproof Tape

Thermaseal Weatherproof Tape

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expand_circle_down Description

Waterproof tape for BreatherQuilt

Thermaseal Weatherproof Tape is an essential ancillary item to be used when installing YBS BreatherQuilt. Tape is an important ancillary item that should be used to tape and seal any vertical butt joints on pitched roofs when insulating with BreatherQuilt Insulation.

Install BreatherQuilt with Thermaseal Waterproof Tape

Firstly Install the BreatherQuilt Insulation across the rafters and staple it to place.

Install the next layer, overlapping by 100mm. Follow by using the in-built tape (a tape that’s already attached to the BreatherQuilt, to secure this layer).

Only the vertical butt joints should be taped. This vertical joining method provides weather protection.

Thermaseal Waterproof Tape is supplied in 50mm x 50m rolls.

For every 10 rolls of BreatherQuilt 1.2 x 10m – order 1 Roll of our Thermaseal Weatherproof Tape

Order online at the lowest Online Prices before 2 pm and receive delivery the Next Working Day to the UK Mainland.


Orders placed before 2 pm can receive next working day delivery (UK Mainland) orders placed after 2 pm Friday and over the weekend can receive delivery on Tuesday. You can also select a specific date for delivery at checkout.


Spend £500 + VAT and Choose a FREE GIFT at the checkout!

Free Gifts Include Thermaseal Foil Joining Tape, Heavy Duty Staple Gun Kit, Multifoil Insulation Scissors, or Thermaseal Double-Sided Tape.

expand_circle_down How-To Guides

How to Fit BreatherQuilt over Rafter

  1. Install First Layer of BreatherQuilt

    Starting at the bottom of the roof, roll BreatherQuilt across the rafters and staple in place at 300mm intervals. Ensure BreatherQuilt is draped in-between each rafter as opposed to being pulled taught. It is vital that a 10mm clear gap is formed at the center of all rafters. The gap is between the top layer of BreatherQuilt and installed tile batten.

  2. Fixing and Cutting

    Ensure BreatherQuilt is stapled at 300mm intervals, using min 14mm deep staples, or nails. BreatherQuilt can be cut with either Multifoil Scissors, or a Cutting Knife. Both the cutting tools, along with a Staple Gun & Staples are available in our Multifoil Fitting Kit.

  3. Horizontal Overlaps

    Once the first run of BreatherQuilt is fully fixed, and is draping into the rafters, proceed next by taping a line of 50mm Thermaseal Double Sided Tape along the edge of the material. Install the next layer of BreatherQuilt in the same manner as the first. Overlap the first and second layer by 100mm, ensuring the double sided tape is secure and sealed.

  4. Vertical Joints

    Where 2 layers of BreatherQuilt meet on vertical sections, we advise these layers to be butt jointed, not overlaps. These joints should be taped over with a suitable 50mm waterproof duct tape.

  5. Final Detailing

    At the eaves BreatherQuilt should extend onto a suitable eaves carrier. Proceed with tile/slate battens and tile/slates.

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Key Features

  • Designed for use with YBS BreatherQuilt & Membranes
  • Size: 50mm x 50m
  • Long Lasting High Tack Adhesive
  • Waterproof Logo