Standard Pitch For Metal Roof – If this is so, then you will discover there are lots of options out there in the roofing industry. These options can range from several variations of asphalt shingle types to many versions of metal panels. Among the many questions that are introduced to a professional contractor is ” can metal roofing be set up over shingles?” . We will examine these measures in greater detail to help determine if retrofitting a metal roof over an existing asphalt shingle roof is a complex idea.
There are several things you must consider before choosing to put in 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 secure and solid underneath the current roof. Basically, the roof decking shouldn’t be damaged by water entering the old roof at any pinhole or any additional penetration inside the field of the roof. This may require a little investigative work before installing the new metal roof. It is highly recommended, to inspect all of roof decking and framing from the attic side of the roof.
flat roof trusses design
One has to look for dark stains, moldy stains, water paths on plywood or roof decking, and or any cracked or split rafters. This needs to be done with great care, for a single mistake can damage your ceilings or cause substantial injury to oneself. Following these things are validated to be okay, then, the next step is to begin preparing the roof. New 1×4 timber strips have to be installed horizontally and vertically every 24 inches across the roof plane on the horizontal from bottom to top. Following this is complete and a holistic approach to the whole roof, then, now is the time to put in the roofing panels.
metal roof lowest pitch
Be mindful that all roof penetrations will need to be flashed with flashing glasses that will work together with the metal panel chosen for the roofing program. Within this step, choosing the metal panel is critical to the longevity of roof lifetime. There are 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 fancy barn tin panels is that the rubber dishwashers will dry rust and neglect, thus, developing a roof leak that may undermine all of the reason a metal roof has been chosen to start with.
A straightforward way to avoid the face stained roof stuff is to use a hidden fastener metal plank. These types of panels are called standing metal seam. It is highly recommended when choosing a metal roof to think about longevity. Succinctly expressed, a hidden fastener panel will last the whole life of the metal with minimal likelihood of leaks other than failing roof penetrations over time.This is normal to all roof types.