Metal Roof Underlayment Over Shingles – If this is so, then you are going to discover there are many alternatives out there in the roofing market. These choices can vary from multiple variations of asphalt shingle types to a lot of versions of alloy panels. One of the numerous questions which are introduced to an expert contractor is ” can metal roofing be set up over shingles?” . The simple answer is yes. We will analyze these steps in greater detail to help determine if retrofitting a metallic roof over an present asphalt shingle roof is a complex idea.
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There are numerous things you must consider before deciding to install a metal panel roof over an present asphalt shingle roof. The first thing that must be determined is if the roof plywood or board board decking is secure and solid beneath the existing roof. Essentially, the roof decking shouldn’t be damaged by water entering the old roof at any pinhole or some other penetration inside the field of the roof. This may require a little investigative work prior to installing the new metal roof. It is highly recommended, to inspect all roof decking and framing out of the attic side of the roof.
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One must look for dark stains, moldy stains, water paths on roof or plywood decking, and or some cracked or split rafters. This should be done with great care, for one error can damage your ceilings or lead to significant harm to oneself. After these items are validated to be okay, then, the next step is to start preparing the roof. New 1×4 wood strips have to be installed horizontally and vertically every 24 inches across the roof plane on the horizontal from bottom to top. It is highly advised to use wood screws to attach the newest 1 x 4 wood strips. After this is complete along with a holistic approach to the entire roof, then, it is time to install the roofing panels.
Be cautious that all roof penetrations will need to be flashed with flashing glasses which will work with the metallic panel selected for the roofing program. In this step, choosing the metallic panel is critical to the wellbeing of roof lifetime. There are metal panels which screw through to that would on the face of the metal that’s simply nothing more than fancy barn tin. The problem with fancy barn tin panels is that the rubber dishwashers will dry rot and fail, thus, creating a roof leak that can undermine all the reason a metallic roof was selected to start with.
An easy approach to avoid the face stained roof stuff is to use a hidden fastener metal panel. These types of panels are called standing metal seam. It is highly recommended when choosing a metal roof to think about durability. Succinctly expressed, a hidden fastener panel is going to last the entire life of the alloy with minimal chance of leaks other than failing roof penetrations over time.This is ordinary to all roof types.