If I use galvanised steel roofing members instead of timber, they
cannot rot. How does this affect the roof ventilation requirements in
comparison to a conventional timber roof ?
Thanks,
Simon.

If I use galvanised steel roofing members instead of timber, they
cannot rot. How does this affect the roof ventilation requirements in
comparison to a conventional timber roof ?
Thanks,
Simon.

wrote:
If I use galvanised steel roofing members instead of timber, they
cannot rot.

rust, rot, both caused by damp and lead to failure.

NT

The ventilation requirements are the same.

In addition, the likelyhood of cold bridging and increased risk of
condensation forming on the steel, may require greater insulation
detailing on top of the steel, and around the roofspace generally

dg