Metal Roofing Directly On Felt

Inspect the plywood for damaged areas.

Metal roofing directly on felt.

When most people think of roofs they typically think of shingles or metal roofing. The quality and type of underlayments used on the project in the long term will affect the overall performance of the roof. It s low cost and familiarity with the product is why it has been around for so long. Sweep the plywood clean of all dirt and debris with a push broom.

The metal has air gaps for ventilating. Architectural metal roofs with felt underlayment are best suited for buildings with proper slope and low moisture loads in dry or arid climates. Most metal roof companies recommend installing felt paper on roof sheathing before you install the metal roofing. Synthetic underlayment is a newer innovation that is taking over the metal roofing industry as a better more advanced replacement for felt underlayment.

How to apply metal roofing over plywood step 1. Most synthetic underlayments are mechanically attached with roofing caps and staples while others have a glue backing. In most cases what you are doing will be fine. The thermal break created by battens is nice but not.

Thank you very much. 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. I d not install plastic on the sheathing because it s a vapor barrier. Repair any rotted sections of plywood before installing the metal panels.

Conversely felt underlayment is appropriate in conjunction with ice dam protection at eaves and other critical transitions in cold climates. Remove all unused vents pipes and protrusions. But what some may not know is there s another layer of protection directly on top of the roof deck and under the roof covering that performs a critical role in protecting your home from moisture damage. 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.

The asphalt in the felt paper is waterproof and does a great job of protecting the untreated wood roof sheathing. I would like to install my metal sheets directly over the roofing felt without putting down 1 4 runners on the felt.