Vapor Barrier On Metal Roof Deck – If so, then you will discover there are many alternatives available in the roofing market. These choices can vary from multiple variants of asphalt shingle types to many variations of metal panels. Among the numerous questions that are introduced to an expert contractor would be ” can metal roof be set up over shingles?” . The easy answer is yes. We’ll examine these measures in greater detail to help determine if retrofitting a metallic roof over an existing asphalt shingle roof is an innovative idea.
There are several things you must consider before deciding to put in a metal panel roof over an existing asphalt shingle roof. The first thing that must be determined is if the roof plywood or plank board decking is solid and secure underneath the current roof. Essentially, the roof tiling shouldn’t be ruined by water entering the old roofing in any pinhole or some additional penetration within the field of the roof. This will require a small investigative work prior to installing the new metal roofing. It’s highly recommended, to inspect all roof decking and framing out of the attic side of the roofing.
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One has to search for dark spots, moldy spots, water trails on roof or plywood tiling, and or some cracked or cracked rafters. This should be performed with great care, for one mistake can damage your ceilings or lead to substantial injury to oneself. After these things are validated to be okay, then, the next step is to begin preparing the roofing. New 1×4 timber strips must be installed horizontally and vertically every 24 inches throughout the roofing plane on the horizontal from bottom to top. After this is complete along with a holistic approach to the entire roof, then, it is time to put in the roof panels.
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Be cautious that all roof penetrations will have to be flashed with flashing boots that will work with the metallic panel selected for the roofing application. In this step, choosing the metallic panel is critical to the longevity of roof lifetime. You will find metal panels that float to that would on the face of the metal that is simply nothing more than just fancy barn tin. The problem with elaborate barn tin panels is that the rubber washers overtime will dry rust and fail, thus, creating a roof leak that may undermine all the reason a metallic roof was selected to begin with.
An easy way to avert the face screwed roofing stuff would be to use a concealed fastener metal plank. These types of panels are known as standing metal seam. It’s highly recommended when choosing a metal roofing to consider longevity. Succinctly expressed, a concealed fastener panel is going to last the entire life of the metal with minimal likelihood of leaks other than failing roof penetrations over time.This is ordinary to all roofing types.