As far as the fan fold foam you don t need it in my opionion why their website claims it an energy star rated panel.
Fanfold under metal roof panels.
R 1 fanfold rigid foam board insulation sheathing.
You could see alot of deflection in the panels if you don t.
I am concerned about creating a double vapor barrier between the roof panels and the radiant barrier.
Work toward the ridge.
Let s take a look at the most common types of metal roofs for houses.
R tech rigid foam fanfold insulation.
Secure the metal panel to the deck by drilling 1 1 2 inch galvanized metal screws through the peak of the rib in 12 inch to 16 inch intervals.
Multipurpose high density insulation kit r10 2 3 8 in.
Begin on the left side of the roof working to the right.
The many style options of metal roofs metal roofing comes in numerous styles that mimic modern architectural shingles unique clay tiles traditional standing seams metal roofs with panels that run vertically up the.
Overlap the edge of the roof by 1 inch.
A metal roof under the same conditions may stay more than 50 f cooler than an asphalt roof which saves both energy and money.
An affordable option and easier to lay than shingles tin is the most commonly used type of metal roofing.
I have no roof deck osb or plywood the metal goes on the purlins.
Consult local building codes and membrane manufacturers for system requirements.
Foil insulation underlayment is recommended under a metal roof and in most cases the shiny side should be facing up but there s a catch.
R tech ff is ideal in recover applications and is well suited for single ply roof applications that employ mechanically fastened or ballasted tpo pvc epdm and cspe membranes.
I have a quick question.
Foil insulation is a radiant barrier and it works by.
I have been debating on weather to use fan fold or a radiant reflective vapor barrier under my new metal panels i will be installing on my garage.
Heck it s a 28 gauge 16 inch panel the contractors that have giving you bids to tear off the old asphalt shingles and felt sound like they care about what they are doing.
The quality and type of underlayments used on the project in the long term will affect the overall performance of the roof.
In this article we are going to explore both financial and technical aspects when it comes to looking for the best method to insulate the metal roofing.
Install the first metal panel on the low end of the roof square to the eave.
Selecting the right underlayments for a lifetime metal roof should be a primary concern for anyone thinking about specifying or choosing to install a metal roof on their home.
