Metal Roofing Directly On Felt

Metal roofing info roofing felt has always been the underlayment of choice for many roofing contractors and do it yourselfers for many years for the use under metal roofs.

Metal roofing directly on felt.

Remove all unused vents pipes and protrusions. Thank you very much. Architectural metal roofs with felt underlayment are best suited for buildings with proper slope and low moisture loads in dry or arid climates. The asphalt in the felt paper is waterproof and does a great job of protecting the untreated wood roof sheathing.

Synthetic underlayment is a newer innovation that is taking over the metal roofing industry as a better more advanced replacement for felt underlayment. Hi todd i have a pole barn design structure that had been turned into a livable dwelling with cathedral ceilings using rigid foam between the metal roof and the ceiling sheetrock i am redoing this and putting a decking down with tyvek protec 200 and then reattaching the metal roof and adding circular pest resistant soffit vents at the end rafters of the roof between purlins for ventilation. Inspect the plywood for damaged areas. How to apply metal roofing over plywood step 1.

Will i be okay. Most synthetic underlayments are mechanically attached with roofing caps and staples while others have a glue backing. Repair any rotted sections of plywood before installing the metal panels. Sweep the plywood clean of all dirt and debris with a push broom.

I would like to install my metal sheets directly over the roofing felt without putting down 1 4 runners on the felt. In most cases what you are doing will be fine. The thermal break created by battens is nice but not. March 4 2016 at 7 54 am.

The metal has air gaps for ventilating. I d not install plastic on the sheathing because it s a vapor barrier. Most metal roof companies recommend installing felt paper on roof sheathing before you install the metal roofing. When most people think of roofs they typically think of shingles or metal roofing.

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. The quality and type of underlayments used on the project in the long term will affect the overall performance of the roof.