Tin Roof Flashing Around Chimney

Apply roofing cement to the joint between the flashing and brick.

Tin roof flashing around chimney.

Bend the clipped flashing around the chimney. Cover any exposed nail or screw heads with roofing cement. Cut two opposing 45 degree notches into z closure to allow a 90 degree bend. According to the federal emergency management agency fema improper roof flashing could lead to wood rot and even deck collapse.

Trim panels to fit around the chimney. Flashing is a method of weatherproofing the base of a chimney. Bend legs up the chimney sides about 1 inch. So chances are if you ve been looking into your roof and its flashing you have questions.

A continuous sheet metal apron across the chimney s downslope face l shaped step flashing running up both sides and when the chimney sits below the roof ridge a cricket or saddle running across the upslope face. 3 unexpected causes of roof leaks and waterproofing masonry chimneys. Cut the side cap flashing to fit the angle of the roof so it overlaps each lower cap flashing at least 2 in. Pound the flashing into the grooves and fasten with the drive in expanding anchors.

Use masonry nails or screws to reattach the flashing tight against the chimney. Flashing is any thin piece of metal and caulking that is used to prevent water from penetrating the outside of your home. A cricket is sloped like a tent roof to deflect water around the chimney. We ve discussed flashing on roofs in our previous article roof leak investigations.

Use tin snips to clip the flashing at the point where the other side of the chimney lies against the flashing. Bend a piece of cap flashing to fit around the top corner of the chimney and add the cap flashing across the back of the chimney. What is chimney flashing. The part of the flashing that lies flush with the roof should overlap the roofing shingles.

Damaged or improperly installed roof flashing especially around the chimney or dormer is one of the most common causes of roof leaks. Chimney boot for a metal roof. Panels above the chimney should be removed. Chimney flashing exists at the base of the stack.

Fold closure 90 degrees and. Base flashing has several components. Flashing is often made of metal which is the norm on a metal roof. The bent edge should fit around 1 corner of the chimney.