Green Corrugated Metal Roofing Sheets – If this is so, then you will find there are many alternatives available in the roofing market. These choices can vary from multiple variants of asphalt shingle kinds to a lot of versions of metal panels. Among the many questions which are introduced to an expert contractor is ” can metal roofing be set up over shingles?” . The dichotomous nature of installing metal over an existing shingle roof requires many steps. We will analyze these measures in greater detail to help determine if retrofitting a metallic roof over an existing asphalt shingle roof is a complex 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 board board decking is solid and secure underneath the current roof. Basically, the roof decking should not be ruined by water entering the old roof at any pinhole or any additional penetration within the subject of the roof. This will require a small investigative work prior to installing the new metal roof. It’s highly recommended, to inspect all of roof decking and framing from the attic side of this roof.
metal corrugated roofing roofing
One has to look for dark stains, moldy stains, water paths on plywood or roof decking, and or any cracked or split rafters. This should be performed with good care, for a single error can damage your ceilings or lead to significant harm to oneself. New 1×4 wood strips have to be installed horizontally and vertically every 24 inches across the roof plane on the flat from bottom to top. After this is complete and a holistic approach to the entire roof, then, now is the time to put in the roofing panels.
galvanized corrugated metal roofing
Be mindful that all roof penetrations might have to be flashed with flashing boots which will work with the metallic panel selected for the roofing application. Within this step, picking the metallic panel is vital to the longevity of roof lifetime. There are metal panels which screw through to that would on the surface of the metal that’s simply nothing more than just fancy barn tin. The issue with fancy barn tin panels is that the rubber washers overtime will dry rust and neglect, thus, developing a roof leak that can undermine all of the reason a metallic roof has been selected to start with.
An easy way to avert the face stained roof material is to use a concealed fastener metal plank. These kinds of panels are called standing metal seam. It’s highly recommended when picking a metal roof to consider longevity. Succinctly expressed, a concealed fastener panel is going to last the entire life of this metal with minimal likelihood of leaks aside from failing roof penetrations over time.This is normal to all roof types.