Insulation Under Metal Roof Over Shingles – If this is so, then you are going to discover there are many alternatives available in the roofing market. These choices can range from multiple variations of asphalt shingle types to a lot of variations of alloy panels. Among the numerous questions which are introduced to a professional contractor would be ” can metal roof be installed over shingles?” . The dichotomous nature of installing metal within an existing shingle roof requires many actions. 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.
metal roof insulation installation
There are several things you should consider before choosing 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 board board decking is secure and solid underneath the existing roof. Basically, the roof decking shouldn’t be ruined by water entering the old roof at any pinhole or some additional penetration within the subject of the roof. This will require a little investigative work before installing the new metal roof. It is highly recommended, to inspect all roof decking and framing from the attic side of the roof.
can you install metal
One has to look for dark stains, moldy stains, water trails on roof or plywood decking, and or some cracked or split rafters. This needs to be done with great care, for a single error can harm your ceilings or cause significant injury to oneself. New 1×4 wood strips have to be installed horizontally and vertically every 24 inches throughout the roof plane on the flat from bottom to top. After this is complete and a holistic approach to the whole roof, then, now is the time to install the roof panels.
Be cautious that all roof penetrations will need to be flashed with flashing boots which will work together with the metal panel chosen for the roofing program. In this step, choosing the metal panel is vital to the wellbeing of roof lifetime. You will find metal panels which screw through 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 dishwashers will dry rust and neglect, thus, developing a roof leak that can undermine all of the reason a metal roof was chosen to begin 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 called standing metal seam. It is highly recommended when choosing a metal roof to consider durability. 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 roof types.