Roof Repairs in Iowa City
We’ll Fix That Leaky RoofIs your roof old or leaking? It is better to take action now and wait for the problem to get worse. Masterpro Roofing specializes in roofing repair.
Flashing refers to thin pieces of impervious material installed to prevent the passage of water into a structure from a joint or as part of a weather resistant barrier system. In modern buildings, flashing is intended to decrease water penetration at objects such as chimneys, vent pipes, walls, windows and door openings to make buildings more durable and to reduce indoor mold problems. Metal flashing materials include lead, aluminium, copper, stainless steel, zinc alloy, and other materials.
Chimney Counter Flashing
Chimney area in the attic every six months to a year, to be sure that there are no signs of leakage. Our chimney professionals carefully scrutinize chimney flashing during inspections. When a chimney is especially vulnerable to moisture because it’s at the bottom of a roof slope, we typically install a cricket, which is a roofing term for a triangle shaped diversion roof built behind the chimney at the roofline. Crickets help to ensure that the flashing can do its job well, keeping moisture from entering the home where the roof and chimney connect.
Pipe Vent Repair
Vent pipes are sealed with metal flashing to prevent leaks, but the flashing may eventually need replacement. Pitched roof vents are usually flashed with a flat metal sheet cut to fit around the pipe and a protective collar that fits around its base. Flashing for flat roofs usually covers the entire vent, with a flat base and a pipe casing that slides on over the chimney.
Installed along the roof peak, ridge vents are probably the most important vents in any "passive" (non-electric) roof ventilation system. Hot air that accumulates inside the attic rises by convection and escapes outside through ridge vents.