The thing is a lot of areas won t allow you to re roof over one layer of shingles.
Transition from shingles to metal roof.
This video shows the transition of a shingle roof to a metal roof.
We re going to do a pitch transition or change.
We need to do something where that change happens so the panels can go down and water can come off hit the lower slope and come off the roof.
Then a high quality synthetic underlayment should be installed as well.
Reinstall two courses of shingles across the transition and atop the upper edge of the flashing.
Fits a36 c4 5 4 steel c channel 1 584 in.
The most trusted miami roofing contractor professionally describes the installation of thi.
Home the metal roofing learning center metal roofing problems.
The transition has to be prepared properly with the right underlayments including high temperature ice and water shield when metal is being installed.
Whereas many areas allow over two layers of shingles.
Retro split storm collar all style medium retro split storm collar flashing.
Make sure the upper ends of the shingles at the upper course slide under the uninterrupted course of.
Although it s better to check with your local building regulations before you make a decision.
In short yes you can install metal roofs over your shingles.
In most cases the decision to transition from one material to another is heavily based on where the house is situated the climate the amount of foliage and the amount of precipitation that the house is exposed to every season.