Overlay vs tearoff
Wednesday, April 21st, 2010I’m all against using the shingle overlay method of re-roofing for a number of reasons.
1). Existing damage to the roof deck remains concealed. Rusty valley flashing remains in place. Rotten wood and termites may not be discovered.
2). Older homes were built to a less developed building code and the roof sheathing usually was not nailed [...]