
Putting in 2x4s over shingles is a commonplace manner for developing a degree floor for roofing underlayment and shingles. This method is frequently used when the prevailing roof sheathing is broken or asymmetric. 2x4s can 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. This will assist to stop leaks and toughen the entire efficiency of the roof. 2d, 2x4s can assist to distribute the load of the roof extra frivolously, which is able to scale back pressure at the roof construction. After all, 2x4s can assist to insulate the roof, which is able to scale back power prices.