All roofing systems are made of a number of different components.
Proper roof flashing installation.
To learn certainteed recommended flashing installation methods and ways to apply shingles at the valleys.
Roof sheathing underlayment roofing material roof intersections flashing details and ventilation.
How to install porch roof flashing.
Proper installation of step flashing.
Flashing installation as you can well imagine a good place for a leak to develop is anywhere the roof joins with walls and chimneys.
These leaks are almost always caused by improper flashing installation or the absence of roof flashing altogether.
Open valleys have metal flashing to protect this critical area of the roof.
While some skylight manufacturers include flashing in their products sometimes roofing professionals have to create it or purchase it separately.
Many people who have porches attached to their homes have problems with water leaks at the junction of the porch and the exterior wall of the home.
Once even a small section of roofing cement fails you ll have a leak.
Continuous flashing against a sidewall is one way to install a roof but it s not the correct way.
Here s a look at some general principles of roof flashing that will help guide you through a proper repair or replacement or even new construction.
The following is the proper procedure for a roof repair company.
Step flashing for chimneys once the shingles have been installed lay the base flashing around the base of the chimney approximately 4 past each end.
The edge of the roof has thin metal flashing that helps water drip off the roof without damaging the home or causing a leak.
Step flashings are to be installed one per course.
This article series discusses roofing installation including roof sheathing roof underlayment roof coverings such as shingles.
A look at roof design.
Valleys walls chimneys etc.
It may seem as if a single piece of flashing would offer more protection than many pieces of step flashing.
Small flashing pieces must be woven into the shingles as you work your way up the roof.
Install step flashing so that it can be.
We explain where drip edge flashing should be installed in what position and we describe the placement of drip edge flashing beneath roofing underlayment or ice and water shields shingles or other roof coverings.
The roof deck flange of step flashings are to be fastened to the surface of each shingle in a position whereby the next course of shingles will cover up hide the flashing from view.
