What is the proper way to flash around a chimney for a tile roof?

Fit the flashing up against the front of the chimney. The part of the flashing that lies flush with the roof should overlap the roofing shingles. The bent edge should fit around 1 corner of the chimney. Use tin snips to clip the flashing at the point where the other side of the chimney lies against the flashing.

Do roofers replace chimney flashing?

If you’re getting some roof renovation done and you have a chimney, make sure that the roofer you hire is experienced in dealing with replacing the flashing on and around chimneys.

What is it called when you fix the mortar joints on a chimney?

Consult a professional to see if your chimney needs to have the mortar joints replaced, a repair known as tuckpointing. The mortar or concrete on top of your chimney is called the crown. It’s your chimney’s roof. If there are loose or missing pieces, consult a professional.

When should chimney flashing be replaced?

With proper installation, regular inspection, and consistent maintenance, chimney flashing can last up 30 years. But the longevity of flashing depends on many variables, including where you live, the type of material used, the size of your roof, and the type of roof shingles you have.

Should roof flashing be caulked?

Roof flashings can be made from thin metal, rubber, and a few other materials. It’s okay to use caulk and roofing cement as a last resort to make a temporary leak repair, but don’t allow a roofer to convince you they’ll work for the long term.

What is proper flashing around a chimney?

Proper flashing around a chimney includes two layers. The first is called step flashing: Sections of L-shaped sheet metal are woven into the shingle courses and lapped up the side of the chimney. Next comes the counterflashing: A second layer of metal is embedded in the chimney mortar joints and folded down to cover the top of the step flashing.

How do you remove Counterflashing from a chimney?

To avoid damaging the chimney when reroofing, use the gentlest possible method to remove counterflashing. If mortar is weak and crumbling, you may be able to pull the flashing out by hand; in that case, repoint the mortar after replacing counterflashing.

What is the difference between step flashing and Counterflashing?

The first is called step flashing: Sections of L-shaped sheet metal are woven into the shingle courses and lapped up the side of the chimney. Next comes the counterflashing: A second layer of metal is embedded in the chimney mortar joints and folded down to cover the top of the step flashing. The corners are especially vulnerable.

How do you bend a chimney to fit a roof?

Cut a 45-degree angle to bend around one side. Snug this bent end against one side of the chimney front. Mark the edge of the chimney on the opposite end and snip and bend this end. Pound four evenly spaced 1-in. galvanized roofing nails through the front edge of the flashing to hold it in place.