The flashing membrane should completely cover the sill and fold out onto the shear wall.
Metal roof flashing techniques.
While some skylight manufacturers include flashing in their products sometimes roofing professionals have to create it or purchase it separately.
Lap successive sheets of metal flashing a minimum of 12 inches and seal laps.
That being said here are a couple of flashing tips that even an inexperienced homeowner should make note of.
The best way to learn proper flashing techniques is to spend time with an experienced craftsman as he installs a complete roof.
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.
You ll have to measure your roof slope and have a sheet metal or gutter making shop make one for you.
Always check the roof flashing and the condition of the shingles whenever you clean your gutters.
Unfortunately you can t solder aluminum flashing and soldering galvanized steel is difficult.
If so cover the nail head with a dab of silicone.
The edge of the roof has thin metal flashing that helps water drip off the roof without damaging the home or causing a leak.
An affordable option and easier to lay than shingles tin is the most commonly used type of metal roofing.
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.
Install an underlayment centered in the roof valley.
This adjustable rubber pipe flashing for metal roofing this adjustable rubber pipe flashing for metal roofing accommodates roof penetrations from 1 4 in.
This membrane should also extend up each jam by approximately 4 to 6 inches.
The soft aluminum base conforms to most metal roof panels.
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.
This is the metal trim similar to the eave flashing except that it is placed over joints in the roof where different sections meet.
You may have to nail the lower edge to the roof to hold it flat.
Required tools for this project.
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.
By flashing the sill first any moisture that may enter the window cavity can weep to the.
Up to 5 3 4 in.
Then install a non corrosive metal valley flashing of 24 minimum width.
This flashing provides protection for pipes cables conduits and wires.
Let s take a look at the most common types of metal roofs for houses.
