ᐅ What factors should be considered when installing a new roof?
Created on: 14 Jan 2008 19:52
U
Unregistriert
Hello,
I want to have my roof re-covered and insulated.
a) What should I pay attention to when getting a cost estimate?
b) What insulation is standard today (is WL40 sufficient, or is WL35 recommended)?
c) How thick does this thermal insulation need to be (100–140mm (4–5.5 inches))?
Thank you very much for your help.
I want to have my roof re-covered and insulated.
a) What should I pay attention to when getting a cost estimate?
b) What insulation is standard today (is WL40 sufficient, or is WL35 recommended)?
c) How thick does this thermal insulation need to be (100–140mm (4–5.5 inches))?
Thank you very much for your help.
Unregistriert schrieb:
... we were offered Rockwool thermal insulation with a WL 035 rating and 12cm (5 inches) thickness. Is that sufficient for a roof renovation?Since work on the building’s thermal envelope—especially in the attic—is considered one of the more challenging tasks, it should be carefully and thoroughly planned, coordinated, executed, inspected, and documented by qualified professionals. A differential pressure leak test as part of a (possibly simplified) blower door test is strongly recommended.
The scope of work to be provided by the planner, contractor, or inspector should be clearly defined in detail within the construction contract.
Otherwise, all the mentioned construction "partners," as well as any experts, lawyers, judges, and renovators called in later, will be very pleased... and all of course only want "the best" for you. 😀