Water Behind Aluminum Siding

The damage can compromise a building s structural integrity.

Water behind aluminum siding.

Some areas were extremely heavy while others were just a single streak. In a rainstorm water flows down one panel and onto the next so a strong wind can easily blow the water up under the panel where the wall is unprotected. Not all have wood rot but the damage would progress to rot in time. 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.

While gaps and openings permit leaks behind the siding some siding openings are normal such as aluminum or vinyl siding bottom edge vents. 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. At yanish we find water damage behind the siding of roughly 1 in 6 homes. Water damage is risky business.

Accessory pieces install before the siding strips to prevent water from running behind the siding in these areas. Walls longer than 16 feet. 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.