Sheet Metal Roof Chimney Flashing – If this is so, then you will find there are many alternatives out there in the roofing market. These choices can vary from several variations of asphalt shingle types to many versions of alloy panels. Among the many questions which are introduced to a professional contractor would be ” can metal roof be set up over shingles?” . We will analyze these steps in greater detail to help determine if retrofitting a metallic roof over an existing asphalt shingle roof is an innovative idea.
metal roof flashing roofing
There are several things you should consider before deciding to install a metal panel roof over an existing asphalt shingle roof. The first thing that has to be determined is if the roof plywood or plank board decking is secure and solid underneath the existing roof. Basically, the roof decking shouldn’t be damaged by water entering the old roofing at any pinhole or some other penetration inside the field of the roof. This will require a small investigative work before installing the new metal roofing. It’s highly recommended, to inspect all of roof decking and framing out of the attic side of the roofing.
types of metal roof
One has to search for dark stains, moldy stains, water trails on plywood or roof decking, and or some cracked or split rafters. This should be performed with good care, for one error can damage your ceilings or cause substantial injury to oneself. New 1×4 wood strips have to be installed vertically and horizontally every 24 inches throughout the roofing plane on the flat from bottom to top. It’s highly advised to use wood screws to attach the new 1 x 4 wood strips. After this is complete and a holistic approach to the entire roof, then, it is time to install the roof panels.
Be mindful that all roof penetrations will have to be flashed with flashing boots which will work together with the metallic panel chosen for the roofing application. In this step, choosing the metallic panel is vital to the wellbeing of roof life. There are metal panels which float to this would on the surface of the metal that is simply nothing more than fancy barn tin. The issue with fancy barn tin panels is that the rubber washers overtime will dry rust and fail, thus, developing a roof leak that can undermine all the reason a metallic roof has been chosen to start with.
A straightforward way to avert the face stained roof material would be to use a hidden fastener metal panel. 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 hidden fastener panel is going to last the entire life of the alloy with minimal likelihood of leaks aside from failing roof penetrations over time.This is ordinary to all roofing types.