About cold roofs/warm roofs

In contrast to a warm roof, a cold roof has a ventilated channel between the roof covering and the thermal insulation (see roof structure).

A warm roof is a roof structure without a ventilated channel between the roof substructure and the roof covering.

Your house with the PREFA look

Our photo montage shows you how attractive your house would look with a PREFA roof or PREFA façade.

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Long-lasting, versatile, environmentally-friendly

Aluminium is the ideal material for builders and restorers. Read about all the advantages here.

Discover the advantages

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We’ll be sending your information out soon: we’ll send you PREFA product brochures directly to your email inbox or through the post.

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What are cold roofs and warm roofs?