A Basic Guide to Roof Flashing

Roof flashing plays a vital role in protecting the property from water intrusion.

Roof flashing plays a vital role in protecting the property from water intrusion. Not only does it prevent mold and mildew, but it also helps the homeowner avoid costly repairs that water damage may cause.

Here's an essential guide to roof flashing:

What is roof flashing?

Roof flashing is a material used in construction to prevent water infiltration at points where two different materials meet. The most common roof flashing types consist of galvanized steel or aluminum. Flashing usually sits along the edges of roofs, at valleys and intersections, and around chimneys and skylights.

Valley flashing

As the name suggests, valley flashing goes on the roof's valleys. It is crucial as it helps direct water away from areas especially vulnerable to leaks. Valley flashing is typically metal and must be correctly installed to prevent water issues.

Step flashing

Step flashing is necessary when the roof intersects with a wall or chimney. The aim is to create a watertight seal between the two surfaces to prevent water from seeping in and causing damage.

Installing step flashing can be tricky, so it's best left to a professional roofer.

Chimney flashing

Chimney flashing helps to keep water from entering the home through the chimney and causing damage. Chimney flashing should go on top of the shingles. Doing so will help to prevent water from seeping under the shingles and into the home.

Vent pipe flashing

Vent pipe flashing is a type of roof flashing used to seal around vent pipes that protrude from the roof. Typically made of metal or rubber, they are installed by slipping the flashing over the vent pipe and then attaching it with nails or screws.

Vent pipe flashings help to prevent water from leaking into the building through the gaps around the vent pipes.

Skylight flashing

Proper roof flashing is crucial to prevent water damage to the home. Skylight flashing helps keep water from leaking through the skylight, a particularly significant point of vulnerability.

Common problems with roof flashing

There are several common problems with roof flashing:

Improper installation

One of the most common problems with roof flashing is improper installation. Unfortunately, incorrectly installed flashing will likely be ineffective.

Damaged or missing shingles

Another common problem with roof flashing is damaged or missing shingles. If there are gaps in the shingles, water can infiltrate and cause damage. Additionally, if shingles are missing, water can enter directly into the home.

Cracks and holes

Over time, cracks and holes can develop in flashing due to normal wear and tear. If these cracks and gaps persist, water can enter the home and cause damage.

Debris

Debris, such as leaves, twigs, and dirt, can accumulate on top of the roof flashing and block it from doing its job correctly.

Reach out to an expert

Some homeowners prefer a DIY approach to home repairs, including installing roof flashing. However, this process could be tricky and is not always safe. The best action is to contact a professional roofing service to ensure the roof receives the care it deserves.

Irish Roofing Company provides Scottsdale with roof inspection, installation, sealing and repair. We offer shingle services, tile roof services, flat roof services, roof cleaning, roof inspection, roof installation, leak repair, roof recovering, roof repair, roof sealing, skylight installation and replacement, and wood shake services for commercial and residential customers.