Water Behind Aluminum Siding

This can also cause your siding to rust.

Water behind aluminum siding.

Walls longer than 16 feet. When siding is put back behind the gutter the lowest piece of flashing running down the pitch of the roof above must be fashioned to divert water into the gutter not behind the siding. The damage can compromise a building s structural integrity. At yanish we find water damage behind the siding of roughly 1 in 6 homes.

While gaps and openings permit leaks behind the siding some siding openings are normal such as aluminum or vinyl siding bottom edge vents. Vinyl siding comes in 16 foot strips. Accessory pieces install before the siding strips to prevent water from running behind the siding in these areas. Not all have wood rot but the damage would progress to rot in time.

During a very heavy 2 days of rain water began running from between pieces of siding. It easily hides beneath siding materials and often shows no obvious signs to untrained eyes. The presence of a housewrap on modern buildings or felt on older buildings combined with proper flashing at windows doors and other openings are relied upon to keep water from entering the structure itself. If you do choose to have aluminum siding be sure that there s water resistant stripping underneath the panels.