How to install drip edge and step flashing.
Using old flashing on roof.
Here silva and the apprentices are installing architectural shingles.
Roof flashing is a material used as a protectant against water leaks or seepage and is typically made of galvanized metal but it can also be in the form of aluminum sheet metal copper or even plastic.
What is roof flashing.
The gibraltar building products l flashing protects your home the gibraltar building products l flashing protects your home from moisture infiltration where your wall meets your roof.
In fact after diagnosing roofing leaks for 15 years i can tell you that roofs rarely leak in the field of the shingles 90 of the time they leak where the roof stops starts or changes direction which means most of the time the problem is with a flashing.
Old flashing may begin to fail before the new roof s lifespan is over.
It may seem as if a single piece of flashing would offer more protection than many pieces of step flashing.
Overview how to diy planning.
How to install a copper roof.
How to install ice melting roof cables.
They extend the course 3 8 1 2 inch past the starter course then nail in place then install step flashing then the next course and so on up the roof.
L shaped flashing is a versatile general use flashing used where a uniform or strengthened finish is needed on a 90 surface.
However there are limited circumstances where a roofer may decide to reuse flashing.
More roofing how to diy in this topic.
Follow this old house online.
Galvanized metal or aluminum is considered the best to use for roof flashing.
Using proper flashing components and maintaining penetrations like skylights are critical to the performance of the roof as a system newer technology in flashings and roofing materials not to mention product performance levels has improved greatly in the last 20 years and flashing components need to be consistent with the new roof.
This valley has seen its better days but the critical spot carrying water past the image.
Flashing a humpy old roof valley requires a little give and take and a backup plan.
More roofing videos in this topic.
The flashing is nailed to the roof and it is critical that the nail placement is proper or it will result in leaks.
On a typical re roofing job where you are replacing an old or underperforming roof it is wise to replace all flashing.
But it doesn t work that way.
Install the first course of shingles.
Once even a small section of roofing cement fails you ll have a leak.
