Position a section of metal ridge cap over the peak of the metal roof with the end of the ridge cap flush with one end of the roof peak.
Installing vented ridge cap on metal roof.
There needs to be a 2 inch wide opening at the ridge for ventilation.
It s made from a permeable material and is placed on top of the metal roofing panels at the ridge of the roof.
The steps above explain steel roofing ridge cap installation for the most common metal roof and cap designs.
Add any connectors and end caps that came with your ridge vent system to ensure the vent is watertight.
Position the aluminum ridge vent along the reference line.
Install profilevent to 1 up slope from the edge of the ridge cap.
Below we ve compiled some helpful tips on how to install a ridge vent for metal roofing.
Our host david mackey discusses techniques used in installing ridge cap using the sl 16 standing seam roofing system from american building components.
How to install ridge cap vent for a metal roof for a vented ridge cap.
The roofer said he could take those off and install ridge caps but he d have to cut along either side of the peak by about 4 and although it would look better cosmetically having shingles covering the peak it would not produce as good ventilation as the ridge vent now sitting on top of the house and it would expose me to problems with mold and so on.
If you have a vented ridge cap it will require a ridge vent such as profilevent.
As you can see we ve made a cut 2 inches on either side of the center line of the ridge.
There are other types as well such as standing seam and shingle style panels vented ridge cap skylight ridge cap and formed ridge cap.
A ridge vent is designed to allow air to flow freely from the attic.
Fasten the vent to the roof decking and rafters or trusses by nailing through the flange on both sides of the vent using the nails and nail spacing recommended by the manufacturer.
We purchased installing a vented ridge cap for tin roof 9 10 2010 within the installation process discussion of the residential metal roofing forum.
Installing a vented ridge cap.
We recently redid the our roof with tin.
Mark a pencil line on the ridges of the installed metal roofing panels using the edge of the ridge cap as a guide.
Now we re ready to deal with a vented ridge cap.
I m going to use an abc vented ridge material that s been die cut to fit the sl 16 panel.
The ridge cap is the last thing to put on when installing a metal roof.
We now have to install a ridge cap with the vented ridge material.