Multiple pieces of the flashing will be installed in layers with shingles to ensure the water flows away from the wall.
Step flashing with shingles roof to wall area.
Step flashing is a rectangular piece of flashing bent 90 degrees in the center.
Lay the underlaymentand the shingles fully up till the wall.
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.
Use your hammer and nails to secure the felt into place.
The new step flashing must extend up the wall a minimum of 4 and must be laced with each course of the new asphalt shingles.
Next cut from the other corner on the same side of the step flashing and along 45 degrees to the centerfold.
The first step flashing or the corner flashing should rest on a shingle.
Step flashing creates water tight seals step flashing protects roof to wall transitions the majority of step flashing is made out of aluminum or galvanized steel which helps to prevent rusting and the gauges are normally going to be somewhere between 011 and 019 although commercially it is typically going to be around 040 gauge.
It is used for roof to wall flashing.
How to install roof flashing against a wall.
Step flashings are to be installed one per course.
Learn how to install it below.
Vent flashing done right to prevent leaks back up roof vent boots with flashing counterflashing and proper shingling.
The flashing needs to be installed before installing the roof shingles the metal flashing is formed with a hook edge and cleated on 12 centers the flashing extends up the wall at least 4 the flashing extends onto the roof a minimum of 2 inches 4 inches is preferable in more severe climate areas.
Take a tin snip and cut from one corner of the step flashing along 45 degrees to the centerfold.
It is important to overlap any old roofing felt by at least one foot.
Here s how to install it correctly.
The new step cannot be inserted up behind the stucco and house wrap because the weep screen at the bottom of the stucco is attached to the wall with nails.
The shingle s weather exposure is 5.
After you have gathered all your materials you will lay roofing felt over the area that will have flashing.
Where a sloped roof meets a wall the flashing should extend at least 5 inches up the wall and 5 inches under the shingles.
Even if one piece of step flashing fails the flashing and shingle below it start the process over again.
The step flashing should be 10 inches wide which is 5 inches up the wall and 5 inches running under the shingles and it should be cut 2 inches longer than the exposed portion of the shingle to provide for a 2 inch overlap.
The vertical flange of the flashing is to extend up behind the adjoining siding.
Installing step flashing to prevent roof leaks step flashing spans the joint between roof shingles and an adjacent side wall.
