Metal Roof Over Membrane – If this is so, then you will find there are lots of alternatives available in the roofing market. These choices can range from multiple variations of asphalt shingle kinds to a lot of versions of alloy panels. Among the numerous questions that are presented to an expert contractor would be ” can metal roofing be installed over shingles?” . The dichotomous nature of installing metal within an existing shingle roof requires lots of steps. We’ll examine these steps in greater detail to help determine if retrofitting a metal roof over an existing asphalt shingle roof is an innovative idea.
There are several things you should consider before deciding to install a metal panel roof over an existing asphalt shingle roof. The very first thing that must be determined is if the roof plywood or plank board decking is solid and secure beneath the existing roof. Essentially, the roof decking should not be ruined by water entering the old roofing at any pinhole or some additional penetration inside the subject of the roof. This will require a little investigative work before installing the new metal roofing. It’s highly recommended, to inspect all roof decking and framing out of the attic side of the roofing.
aluminum shingles metal roof
One must look for dark stains, moldy stains, water trails on plywood or roof decking, and or some cracked or cracked rafters. This needs to be done with great care, for a single error can harm your ceilings or lead to substantial injury to oneself. New 1×4 wood strips have to be installed horizontally and vertically every 24 inches across the roofing plane on the horizontal from bottom to top. It’s highly recommended to use wood screws to attach the new 1 x 4 wood strips. After this is complete and a holistic approach to the whole roof, then, now is the time to install the roofing panels.
metal roof over shingles
Be mindful that all roof penetrations might have to be flashed with flashing boots that will work with the metal panel selected for the roofing program. Within this step, picking the metal panel is critical to the wellbeing of roof lifetime. You will find metal panels that float to this would on the surface of the metal that is simply nothing more than just fancy barn tin. The problem with elaborate barn tin panels is that the rubber dishwashers will dry rot and neglect, thus, developing a roof leak that can undermine all of the reason a metal roof has been selected to begin with.
An easy approach to avoid the face screwed roofing material would be to use a hidden fastener metal plank. These kinds of panels are known as standing metal seam. It’s highly recommended when picking a metal roofing to think about longevity. Succinctly expressed, a hidden fastener panel is going to last the whole life of the alloy with minimal chance of leaks other than failing roof penetrations over time.This is ordinary to all roofing types.