Best flashing and patch options for commercial metal roofs
2022年8月5日 · The best option for an easy to use flashing and patch for commercial metal roofs is GAF Acrylic Flashing with a fleece strip. GAF Acrylic Flashing is a self-adhesive, flexible flashing material designed for use on a variety of roofing substrates, including metal. It is UV resistant, waterproof, and has a strong adhesive backing for a secure bond.
Skylight in metal roofing - Contractor Talk
2009年6月17日 · Does anyone know what is the best method to flash around a Velux skylight, 2' x 4', in a metal roof? The slope is 6:12. The roof is sheet metal, full length of the roof.
What is best way to cut corrugated steel roofing?
2011年3月23日 · Anyways it allowed you very precise angular cuts with a normal hand saw I think. I have read stuff saying not to actually "cut" metal because you expose the edge to the weather. Where as sheers and slitting tables actually don't cut but compress the metal which leaves the galvanized or paint intact at the edge, less rust.
Cutting metal roofing with grinder? - Contractor Talk
2015年3月13日 · The science behind shearing metal and cutting metal with a saw is. When use tin snips or a shear you sacrifice the edge where the galvanizing of the metal is rolled during the shearing resealing the edge. Where when using a saw with a blade or abrasive wheel you tear the metal during cutting leaving a raw edge that will rust.
Trimming metal roof back with no rusting - Contractor Talk
2016年11月30日 · Galvanizing material doesn't move. A clean edge (or polished edge) will have less surface area to rust, and the existing galvanizing material on the metal will prevent the rust creep. A sheer or nibbler will be cleaner, and not have hot metal sparks that can in-bead into surrounding surfaces which will rust and appear to be as if its the base ...
Metal Roof leaking at every screw...ideas? - Contractor Talk
2010年5月28日 · all metal pole barns without rigid foam directly under the metal roofing, and/or very good ventilation will condense inside and really cause a problem making it appear like it's leaking when really it's condensing and dripping off the screw points. my roofer just built a shop, metal pole barn at his location and they used the 1" foam underneath.
What is the Best "HT" - Ice & Water Shield Brand for Metal Roofs?
2016年4月27日 · What type of screw up would a metal roofing contractor have to do, to let a metal roof leak? They have a 4/12 pitch and we will lay 5/8" plywood over the existing 1x6's that are now the sub roof. We don't get a lot of snow around these parts, but it does rain a lot.
12/12 pitch and vertical underlayment??? - Contractor Talk
2015年1月20日 · The pitch is also 12/12, with profiled metal sheets being the final layer. Scaffold erected up to 1 foot below eaves (out of image), then we worked our way up with synthetic. We strap/batten under all our metal, so we were able to create a ladder of 2x4s (spaced for 1.5" Blue SM as can be seen) as we went up - roll out one course of underlay ...
1/12 pitch roof - Contractor Talk
2010年8月3日 · No way I'd use shingles, metal roofing works fine on 1/12 pitch roof. Look at the wrapping on the shingles says 3/12 pitch minimum. I've torn down more than one roof that was rotting the plywood in less than 5 years that were shallow pitched roofs with shingles.
Metal Roof leaking at every screw...ideas? - Contractor Talk
2003年10月8日 · all metal pole barns without rigid foam directly under the metal roofing, and/or very good ventilation will condense inside and really cause a problem making it appear like it's leaking when really it's condensing and dripping off the screw points. my roofer just built a shop, metal pole barn at his location and they used the 1" foam underneath.