Metal roofing 101 diy steel roofing installation over shingles subscribe.
Metal roof installation guide furring strips.
Let s take a look at the most common types of metal roofs for houses.
Metal roofs depend on thin strips of wood known as furring to allow air to circulate and prevent rot.
3 install 1 4 purlins down over the shingles before installing the metal roof the third way to install a metal roof over shingles is by applying 1 4 purlins over the shingle roof.
As long as the plywood under the shingle roof is in good condition this way can provide many benefits.
Twenty four inches is a common spacing of furring strips for a metal roof.
The edging or eave flashing consists of metal strips that are used to cover the perimeter of the roof.
They are compatible with many different kinds of synthetic underlayment.
Florida building code allows a minimum pitch of 2 12 for grand rib 3 panels as long as lap screws and sealant are applied to the laps to prevent water from siphoning over the ribs see fig.
Furring strips are required if you plan to place a metal roof on top of existing shingles.
Before you install metal roofing repair any damage to the wood under the shingles.
Then cover the entire roof with a layer of insulation and secure it with a staple gun.
This is by far the most common way to install a metal roof.
Installation of panels roof pitch this style of metal roofing panels requires a certain degree of pitch to ensure proper water drainage.
Whether you are looking to install a metal roof on a shed or a house it s important to know the difference in the various types of metal roofs available.
An affordable option and easier to lay than shingles tin is the most commonly used type of metal roofing.