
Putting in 2x4s over shingles is a commonplace means for growing a degree floor for roofing underlayment and shingles. This method is continuously used when the prevailing roof sheathing is broken or asymmetric. 2x4s will also be used so as to add power and tension to a roof construction.
There are a number of advantages to putting in 2x4s over shingles. First, it creates a clean, flat floor for the underlayment and shingles to stick to. It will assist to stop leaks and strengthen the total efficiency of the roof. 2d, 2x4s can assist to distribute the burden of the roof extra lightly, which is able to cut back rigidity at the roof construction. In any case, 2x4s can assist to insulate the roof, which is able to cut back power prices.