Fitting Roof Insulation Foil

Foil insulation underlayment is recommended under a metal roof and in most cases the shiny side should be facing up but there s a catch.

Fitting roof insulation foil.

It is easily cut and placed and reflects heat rather than absorbing it. Atticfoil radiant barrier foil insulation 500 261 views 4 42 how to insulate your timber building and shed using ecoquilt expert reflective multifoil insulation duration. If your roof is poly carbonate or opaque there is no need to fit a film first unless you do not want the foil to be seen. The materials used to insulate under the roof include batts of mineral or glass wool insulation held in place by battens of wood attached to and across the rafters alternatively polystyrene.

You will have to ensure there are good air gaps either side of the foil to get the best performance. Most people consider the foil looks appealing from the outside. If you choose the former we recommend you start out from the bottom and work your way up by ensuring the insulation overlaps at each junction it meets. Reflective foil insulation is made from layers of aluminium foil surrounding a wadding or layer of wool material.

Importantly it allows full reflection of radiant energy without any barrier. How to install foil insulation on roof. Ensure all superquilt insulation joints are overlapped by min 50mm. Superquilt can be easily cut using multifoil scissors or a cutting knife both available in our multifoil fitting kit.

The process is more tricky than installing foil insulation during the construction of a property but can be undertaken if need be. Ensure overlaps are fully taped and sealed using thermaseal foil joining tape. Reflective foil insulation installation on a roof is usually done in the ceiling attics or other spaces that separate the roof from the ceiling. We would recommend going for one with plenty of layers and some heft to it as the thinner ones will not.

Usually reflective foil is about 25mm thick and gives a very good u value for its relative thickness. Foil insulation is a radiant barrier and it works by.