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How to Fit SuperQuilt Under Rafter

Difficulty: Easy • 5 Steps

This How-To-Guide will display how to install YBS SuperQuilt Insulation under rafter.

SuperQuilt is a fully LABC, BDA & BBA certified for use in pitched roofs. The multi-layered blanket is very popular in both refurbishments, loft conversions and also new build projects.

SuperQuilt is proven to save cost, space, wastage & installation time compared to Rigid PIR Insulation (Kingspan / Celotex)

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Multifoil-Insulation are the leading UK & European distributor of Multifoil Insulation products. We offer free next working day delivery to the UK Mainland (Order before 2pm)

Method Steps

  1. Installing first run of SuperQuilt

    SuperQuilt can be installed either vertically or horizontally, dependent on rafter height. Staple SuperQuilt to the rafters at spacing's of approx 300mm. Ensure SuperQuilt is pulled taught whilst rolling and stapling.

  2. Overlaps & Tapes

    Ensure all SuperQuilt Insulation joints are overlapped by min 50mm. Tape and seal all overlaps using Thermaseal Foil Joining Tape. SuperQuilt can be easily cut using Multifoil Scissors or a Cutting Knife - Both available in our Multifoil Fitting Kit.

  3. Eaves Detailing

    At the eaves, SuperQuilt is cut around the rafters, and sealed to the cavity wall insulation or wall plate. It is vital to fully tape and seal, to ensure that an airtight envelope is created.

  4. Counter Batten

    Fix 25mm x 38mm battens at right angles to the rafters. Deeper battens can be used if preferred. Battens also must be fixed around the perimeter of windows.

  5. Internal Finish

    The plasterboard is then screwed into the battens in the usual manner. When SuperQuilt is installed as the most internal insulation layer, there is no requirement for a foiled-back plasterboard. SuperQuilt will work as a high performing Vapour Control Layer, when taped and sealed using Thermaseal Foil Tape.

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Disclaimer – Multifoil-Insulation cannot be held responsible for any losses financially or physically from advice provided in this How-To-Guide.

Installation of SuperQuilt Insulation for under rafter should be in harmony with the official certificate. Recommended fixing materials and good building practice should also be used.

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