I'm holding back on purchasing a bungalow because it has a slight sag in its roof.
It may be serious, it maybe minor. Vendor is looking at getting local repair man in to fix it.
Everything that I read is that a professional is required to determine the cause and remedy.
Problem is "what professional?". Seems to be lots of people who do slates, tiles or general roofing repairs. Is the NFRC worth it? I'm wary of trade associations. Not even sure which category to search for.
Roof is concrete tiled. It is a 1968 build but the vendor has spare tiles in the garage so there is a possibility it has been retiled. The roof space is fairly open but with struts at the edges. The sag is about mid-way, not readily obvious and the ridge itself is straight.