Blue Water Dripping Off Siding

Rainwater leaking from a gutter ends up behind siding and causes a wall to rot.

Blue water dripping off siding.

Blue or green staining occurs exclusively with copper pipe and fittings including brass which is copper plus. The shingles should be hanging about 1 4 inch to 1 2 inch beyond the drip edge so this may be your problem. If you train the hose so it shoots water upward into the bottom or vertical laps of the siding it might. At some point in the past an owner had vinyl siding installed over old siding.

It s usually safe to use a power washer but it should be used with care as it can force water behind the the. Zinc and is caused by the corrosion and dissolution of the metal itself. The extra thickness of the vinyl. Since water runs downward unless it s being driven by strong winds the standard method for creating water resistant vinyl cladding is to start at the bottom and work up.

J channel is a poor design if not flashed well it allows water to get in behind siding. If there is no way for it to drain the channel holds this water along with any dirt that was on the outside of the house. Some areas were extremely heavy while others were just a single streak. Mild soap and water with a soft scrub brush is sufficient for general dirt and grime.

Bear in mind that vinyl siding is designed to keep out water that falls from the top down. Water runs down the siding and can collect in the j channel. Water quality and even improper electrical grounding hasten corrosion adding excessive amounts of dissolved copper to the water coming out of fixtures. During a very heavy 2 days of rain water began running from between pieces of siding.

It can get behind the siding and cause serious problems within the walls as well as leakage in the basement or crawl space.