HELP – Anyone experienced with old roof design how to insulate
I have an older roof (1930) where there’s 2×6 rafters, the 1×2 strapping going horizontally across them. On top of this there’s boards and then asphalt. We are looking to insulate the attic.
I posted elsewhere that spray form might be the only choice — I need to use the attic so putting 13 inches of another product in the ceiling isn’t ideal.
The question I have is: The strapping seems to create a continous airflow on the sides of the roof does this make it a problem to insulate – see image? Is there anything I should do before spray foaming. It sounds awful but replacing the rafters in the roof to 2×10 is an option as I need a new roof (asphalt) anyway.
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