Insulation between the rafters

When the attic is a heated storey where people live or work, it must be well insulated, like any other heated room in the building. Remember: about 25% of all energy (heat) losses of an uninsulated building occur through the uninsulated roof! Our range of course also offers solutions for insulating pitched roofs from the inside, between the rafters.

Insulating between the rafters is particularly suitable for thermal refurbishment of a roof, because the existing tiles do not have to be removed first.

* This application refers to use outside the Republic of Serbia, where the board is considered a construction product.

Insulation between the rafters with Austrotherm EPS A30

Austrotherm EPS A30

You can also insulate the space between the rafters well with a standard product of our range for the Serbian market — Austrotherm EPS® A30*. It is "airy and soft" (it does not need a higher compressive strength, as there is no compressive load here) and very attractively priced. As everywhere, the thicker the insulation, the better the effect! Until 2011 the thicknesses most used in Serbia matched the usual rafter depths in Serbia — 120 mm or 140 mm. Under the new rulebook on energy efficiency in Serbia, however, the required insulation thickness here will be about 300 mm!

On the inside, after the insulation, a vapour barrier (PVC foil) is always installed; it can also be a vapour-permeable membrane, laid so that vapour passes from inside to outside (the direction is marked on the membrane).

* This application refers to use outside the Republic of Serbia, where the board is considered a construction product.

Recommended products