Hello from Hobart Tasmania. I have purchased 1930's weatherboard cottage with a tin roof. The roof is insulated in the main part of the house (i.e., in the attic) but the additions on the house are not insulated - there is no attic on these extensions, just the roof immediately above the rooms. As a result, these extension areas are very hot in summer and extremely cold in winter.
Recently, when we were getting a quote on insulating in the crawl space below the house, an insulator company suggested that they could simply 'remove' the tin roof above the extension, install fiberglass, and re-attach the tin.
It seemed like a reasonable way forward to make these rooms more useable - but I am curious if there is anything I need to be wary of or concerned about. Is is OK to simply remove tin, add insulation, and re-attach tin? Do I need to worry about anything else, such as potential new leaks on roof from removing the tin? Do I need to worry about moisture from the house causing rot?
Any clues would be most appreciated! I have no experience with any thing like this at all!