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