Metal Roof Flashing Techniques

Open valleys have metal flashing to protect this critical area of the roof.

Metal roof flashing techniques.

Drip edge metal valley flashing dormer chimney and kick out flashing shed water away from the connections between roofs walls chimneys and other building assemblies this collection of 18 articles animations and videos identifies the critical roof flashing areas illustrates durable roof flashing details and shows how to flash roofs. The flashing shall be a minimum of 4 inches 102 mm high and 4 inches 102 mm wide. Apply an approximately 3 inch width of asphalt roofing cement along the sides of flashing and embed shingles in mastic. At the end of the vertical sidewall the step flashing shall be turned out in a manner that directs water away from the wall and onto the roof and or gutter while this is a nice diagram of how these flashings work don t forget our 5 th design rule.

Whether you are looking to install a metal roof on a shed or a house it s important to know the difference in the various types of metal roofs available. The edge of the roof has thin metal flashing that helps water drip off the roof without damaging the home or causing a leak. Required tools for this project. An affordable option and easier to lay than shingles tin is the most commonly used type of metal roofing.

This should be used in valleys points where 2 sections less than 140 degrees meet and as end caps over the tops of 2 sides that meet. While some skylight manufacturers include flashing in their products sometimes roofing professionals have to create it or purchase it separately. That being said here are a couple of flashing tips that even an inexperienced homeowner should make note of. By flashing the sill first any moisture that may enter the window cavity can weep to the.

The soft aluminum base conforms to most metal roof panels. Always check the roof flashing and the condition of the shingles whenever you clean your gutters. This flashing provides protection for pipes cables conduits and wires. You ll have to measure your roof slope and have a sheet metal or gutter making shop make one for you.

Let s take a look at the most common types of metal roofs for houses. If so cover the nail head with a dab of silicone. The best way to learn proper flashing techniques is to spend time with an experienced craftsman as he installs a complete roof. Up to 5 3 4 in.

Unfortunately you can t solder aluminum flashing and soldering galvanized steel is difficult. You may have to nail the lower edge to the roof to hold it flat. This is the metal trim similar to the eave flashing except that it is placed over joints in the roof where different sections meet. This membrane should also extend up each jam by approximately 4 to 6 inches.

Then install a non corrosive metal valley flashing of 24 minimum width. This adjustable rubber pipe flashing for metal roofing this adjustable rubber pipe flashing for metal roofing accommodates roof penetrations from 1 4 in. Install an underlayment centered in the roof valley.