Metal roof over shingles condensation.
Venting metal roof over shingles.
Ventilation that meets code requirements is adequate for any type of roofing material including metal.
Venting the eaves to vent the roof holes are cut in the old roof above the soffit which pulls air through the soffit vents underneath.
Also don t go up on the roof if it s windy.
Please recommend a vent system without cutting holes in the metal roof there are several options available to provide ventilation to your attic without cutting holes in your metal roof including gable vents and a vented ridge.
If it s slightly windy keep the steel downwind from you so a gust of wind doesn t knock you over.
The options for venting metal roofs are similar to those of other common roofing systems with some special considerations.
We do need to mention though one very rare scenario we have seen just a couple of times over our 35 years.
Bjorn asks i have a new house with a metal roof and without a ridge vent.
This is what it looks like when you install a steel shingle roof system over an existing asphalt shingle roof.
Venting the eaves to vent the roof holes are cut in the old roof above the soffit which pulls air through the soffit vents underneath.
A metal roof typically does not increase nor decrease the need for ventilation.
Ventilation basics roof ventilation depends on the simple scientific.