Roof Leaking At Edge On The Pitch

It bends around the edge of the roof channeling any moisture that penetrates the shingles away from the roof decking.

Roof leaking at edge on the pitch.

If the slope is below a 2 12 pitch then an asphalt shingle system is out of the question you must go with a system designed for low slopes. Roof drip edge flashing serves multiple functions on a building the foremost of which is to assist water in leaving the roof edge with minimum damage to other building components by directing the water off of the roof and into the gutter. Metal drip edge flashing is an important element of any roofing edge. Roof pitch slope for reference standing seam metal roofing is not one size fits all.

Only a few types of roofing profiles are made to be installed at such low degrees including mono clad trim deck and concealed fix klip lock speed deck and top deck. Cut edges cut edges on a steel roof will experience edge creep which is minimal rusting occurring at the cut edge. An alternative would be roof edge heating cables. Click to enlarge any image.

Dormer leaks can be caused from a number of issues. I often form an extended edge of the roof leg of the flashing similar to the projection found on most drip edges. Sometimes the water shows up at a ceiling spot distant from the leak. More questonable or ugly roof wall flashing examples.

Below we illustrate that using a single piece of metal flashing where the uppermost edge of a shed roof abuts a vertical building sidewall works fine though the use of exposed nails see our photo below may form leak or wear points in the roof. When it comes to leaks low pitch roofs are the most vulnerable. Some roof leaks are tough to locate. I hem the 6 inch edge and the 1 2 inch drip bend to stiffen the flashing and minimize oil canning when it expands.

I adjust the angle between the roof and drop legs to match the slope of the roof. Worn out flashing or missing sealant can also cause roof leaks around dormers. If your ceiling has a plastic vapor barrier between the drywall and the attic insulation push the insulation aside and look for flow stains on the plastic often water runs to openings in the vapor barrier such as at ceiling light fixtures. Roofs between 1 and 4 9 degrees are considered to be low pitch.

Rotten or missing trim or siding can allow water to leak behind flashing and into your roof. Depending on the pitch of the roof this can be a diy job or require an hour or two of a contractor s time. Extra protection another extra layer of protection that some companies install and we at the lyons roofing company recommend is for any low slope system from 2 12 to a 4 12 pitch we install owens corning ice and water shield on the entire section. Roof leaks can ruin insulation become a breeding ground for black mold.