7 Metal Roofing Pros And Cons To Consider

Published Oct 25, 20
5 min read

12 Steps to Finding the Perfect How To Install Corrugated Metal Roof Over Shingles

Corrugated roofing panels are made from metal, fiberglass or polycarbonate and typically set up over a system of purlins. They're popular for workshops, sheds, boathouses and other sheds due to their long-lasting sturdiness and easy installation. The panels are available in standard widths and lengths and are fastened using screws with flexible washers.

Depending upon the roofing product, a metal roofing can last 40 years or more - how to install corrugated metal roofing on a flat roof. Metal roofing easily sheds snow and ice and does not soak up water. It will not rot, split or fracture, and can't be harmed by termites and insects. And, unlike any other kind of roof, the color of pre-painted metal roofing can be changed to match brand-new exterior color plans.

One trick to separating panels from a bundle is to "whip" the panel to require air beneath it (so they do not stick). The light weight of a corrugated metal panel is another advantage. Compared to asphalt shingles that weigh an average of 2. 5 lbs. per square foot, metal roof panels only weigh.

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3 pounds per square foot, which allows the panels to be set up over existing roof products. This conserves costly disposal and removal charges, and makes the panels simpler to lift and install. (Eventually, local building regulations and the condition of your roofing's substructure will determine if you can install metal panels over your existing roofing.) On this building team, one man delivers the panels to the 2 installers on the roof.

This decreases heat retention so less heat is moved into the structure. Attach the panels with a 2" overhang. Plus, metal roof is the preferred roofing option in hail-prone areas. Hail triggers conventional roofing products to break and split. Hail will not penetrate a metal roofing. In basic, fall-restraint harnesses and safety lines must be used by anybody dealing with roof.

Use versatile rubber shoes that grip the metal when stepping on it. Never ever set up metal roof in the rain, since the slick, wet surface of the panels can practically guarantee you'll slip and fall. And never deal with metal panels in high winds, because the wind can carry an unfastened panel airborne, in which case it ends up being a big flying blade and very unsafe.

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Do not follow their lead!If you fall off a roof and arrive at the ground, you could break your neck. Always wear the proper safety equipment. If the bundles of metal panels are stored outdoors on the ground, utilize plastic sheeting beneath the bundle to reduce condensation of water from the ground onto the panels - how much overlap on metal roofing.

Store the panels at an angle to promote drain off the package. Secure the stored panels with a loose -fitting tarp to secure from rain or snow but likewise enable air blood circulation. Tin snips, powered shears or an electrical nibbler tool are recommended to cut the panels. Cutting the steel produces slivers and metal chips that need to be removed to prevent scratching the painted finish.

You'll find it helpful to have 3 set, for left edge, best edge and centerline cuts. To help assess the overhang, connect a layout string parallel to the eave as a guide. A variable-speed cordless drill/driver is all you need to drive the screws. Recommended securing pattern. For securing the metal to wood framing, use sharp-pointed, color-coated screws that easily penetrate the metal to engage the wood.

Undeniable Proof That You Need 7 Metal Roofing Pros And Cons To Consider

Hex-head screws help hold the fasteners steady while driving them. All screws need to consist of an EPDM vulcanized, bonded washer to avoid leaks and damage to the panels throughout setup. Side laps ought to deal with far from the dominating wind. If you're unable to utilize complete panels on your roofing system, follow the setup sequence (left) for appropriate construction.

Whenever possible, nail in the valley in between the ridges, where the roof is closest to the wood. The fasteners of choice are color-coated screws with sharp points and EPDM vulcanized bonded washers to seal out water. For gable roofings, place the metal sheet at one corner of the roofing system, overhanging the edge by 2 inches.

Secure with about 20 screws per sheet. Work towards the sides of the roofing system deck, cutting panels to fit as required. Location a 2nd corrugated sheet next to the very first with the ridge of the panel overlapping. For a more protected roofing system, apply caulk/sealant in between the two overlapping sheets. Screw the 2nd sheet through the first and into the framing.

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This crew builds a lot hip roofing systems to a common pitch, and they made a wood jig to direct the coordinating panel's cuts. For the 2nd row, position the first sheet above the first sheet of the first row. The upper sheet should overlap the very first by 6 inches. Attach the sheet and finish the 2nd row in the same way as the first.