On Jun 8, 10:28�pm, frank1492 wrote:
In small buildings (such as a shed) what is the downside to covering
the entire roof with aluminum flashing before shingling? Perhaps
expensive? That's the only thing I can think of.
� � �Any other negatives?
� � �I want to protect the wood indefinitely.
� � Thanks.
� � � � �Frank �

To preseve wood the imporant thing is to prevent condensation by
allowing ventilation around the wood. You need to allow through
ventilation. Eves to ridge or side to side. Metal roofing is very
prone to condensation problems.