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Closed-Cut and Long Island Roof Valleys Closed-Cut and Long Island Roof Valleys Article Source: http://www.roofer911.com Article: "Four Ways to Shingle a Valley" Author: Mike Guertin Issue/Date: #152, December 2002/ For the next two shingling methods, closed-cut and Long Island valleys, I work out of the valley using laminated shingles instead of working toward the valley with three-tab shingles. Shingling both a closed-cut valley and a Long Island valley is the same for the first half of the process. Working on the smaller roof plane, I set a shingle on the first course line. I place the shingle so that one edge is 2 ft. away from the valley center at the nail line. I mark the shingle where the valley center crosses the top edge, and I mark the roof at the top outside corner of the shingle. To shingle out of the valley with laminated shingles, lay a shingle down as a gauge and mark the corner at the bottom (left) and top (right) of the roof. I then move the shingle to the uppermost course on the roof plane, line up the mark on the shingle with the valley center and again mark the corner. A chalkline snapped between this mark and the lower mark forms my guide line. After snapping the guide line between marks, install the shingles with one corner on the line. Snap a chalkline 3 in. from the valley, and you're ready to complete the valley. I always weave my first course. But after that I run the shingles up the valley, aligning the top edges with the course lines and the top outside corners with the guide line. I nail the shingles normally, except that I keep nails at least 6 in. away from the valley center. Now I'm ready for the other roof plane. Closed-cut valley -- Even if I work toward the valley with three-tab shingles, cut valleys are faster than woven valleys hands down. With a closed-cut valley, there's no need to shingle the two roof planes at the same time. Plus, cutting the closed-cut valley shingles can happen after the rest of the roof is shingled. I begin the second side (the side that will be cut) by snapping a cutline 2 in. to 3 in. from the valley center. Keeping the cutline away from the center of the valley creates a better watercourse for runoff and tends to hide discrepancies in the line after the shingles are cut. Working out of the valley with the closed-cut method, snap the cutline (left), then step the shingle back from the line to eliminate the need for dubbing the corners. Here, the gauge shingle marks the guide line ( right). Here's one of the big advantages of working out of the valley with laminated shingles. To establish a line to guide the placement of the shingles on the second roof plane, I place the lowest shingle on the course line so that the cutline meets the shingle 2 in. down from the top edge. In this position, there is no need to dub the corners of the shingles. As I did on the other side, I mark the location of the outside corner of the shingle on the felt, repeat the process at the top of the valley and snap a chalkline. I then install the shingles, lining the top edge with the course line and the outside corner with the guide line, letting the other edges run through the valley. When the shingles are all in, I resnap my cutline. For protection, I insert a metal sheet between the shingles from both roof planes, and I trim the shingles one at a time with a hook blade in my utility knife. I finish the cut edge with a double bead of roof cement, the same as for the open metal valley. When all the shingles are installed to the guide line, the cutline is resnapped (left). With sheet metal protecting the lower layer of shingles, the shingles on top are cut back to the line (right). The cut edge then is sealed with roof cement. Long Island valley -- A young roofer from Long Island first showed me what I now call a Long Island valley. This valley looks the same as a cut valley, only it's faster to install. Although this valley system isn't entirely new, you won't find it described on shingle wrappers. However, it does seem to be a viable weather-resistant method. The only drawback is that Long Island valleys work only with laminated, random-pattern shingles. This method cannot be used with three-tab shingles. For a Long Island valley, a row of shingles is bedded in roof cement (photo left) and installed with their top edge on what would be the cutline (photo right). When I've finished shingling the first roof plane, I snap a chalkline 2 in to 3 in. away from the valley center, just as I did with the closed-cut valley. Next, I smear roof cement a couple of inches away from my snapped line. Then I install a line of shingles up the valley with the top edge aligned with my snapped line. The lowest of these valley shingles is cut back at an angle in line with the lowest course line. Shingles go in with one corner butted to the valley shingle; no guide line is needed. A small dab of roof cement seals each shingle corner. I install the shingles for each course with the lower corner lined up with the edge of the valley shingles. The result of this layout leaves a small triangle of the valley shingle that is exposed on each course. From the ground, the Long Island valley is indistinguishable from a cut valley. The sealing is easier, too: Just a half-dollar-size dab of roof cement under each corner where it laps over the valley shingle is all that is required. Article Source: http://www.roofer911.com Article: "Four Ways to Shingle a Valley" Author: Mike Guertin Issue/Date: #152, December 2002/ This wonderful, informative article was...
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Best Commercial Roofing Products: EPDM Rubber Roofing Article Source: http://oldproroofing.com/epdm-commercial-roofing/ EPDM roofing is the tried and true commercial roofing material that has been used for over 40 years on low-slope roofs and is used by many Fort Worth roofing companies that offer commercial roofing services. EPDM, or ethylene propylene diene monomer, is a durable rubber membrane that protects flat or low-slope commercial buildings from water, wind, sun and other elements. EPDM is though to be one of the best commercial roof applications available. Benefits Of EPDM The true test of any product is whether it actually performs in a live environment. EPDM roofing has shown that it can handle the elements as promised and newer improvements have been made to ensure that it will only become more reliable. Commercial builders choose EPDM for a variety of reasons: - Wind resistance. EPDM can resist wind damage and uplift. EPDM roofs can be rated to resist high winds, anywhere from 60 to 120 MPH. - Heat resistance. These rubber roof coatings are both heat and fire resistant making them perfect for the hot, Texas weather. - UV radiation resistance. EPDM is resistant to ultraviolet radiation. - Weather elements. Hail, wind, rain and snow are all handled well by this high endurance rubber membrane. One of the main benefits of having A EPDM roof is that there is no needed maintenance on these roofs. Most do not need regular resealing or surface treatments. Roofs should just be kept free of debris and periodically inspected. Types OF EPDM EPDM roofing comes in two main types, white and black. In warmer climates such as Texas, white is the most commonly used due to its energy-saving capabilities. White EPDM has a reflective, environmentally friendly surface that enhances the membranes ability to reflect UV rays and conserve in air-conditioning costs. In cooler climates, the black EPDM is preferred, attracting heat and reducing heating costs. EPDM Installation There are three main ways to install EPDM roofing: Ballasted, mechanically attached and fully adhered systems. However, white EPDM, which is the most commonly used in Texas, is installed with either the mechanically attached or the fully adhered system. - Mechanically attached system. The most economical installation method is using the mechanically attached system. This method is lightweight and works well in areas without high winds. - Fully adhered systems. Fully adhered systems are becoming the preferred type of EPDM system due to the longevity and advances in the application. The membrane is bonded to the insulation and attached in large panels. EPDM panel seams are sealed with either a liquid adhesive or specially formulated factory applied tape. The tape has made seaming easier, less labor intensive and creates stronger seams than in the past. Commercial building owners and builders that are considering roofing options need to contact a commercial Fort Worth roofing company to discuss EPDM roofing as an option. The long lasting performance, energy savings and low up keep of EPDM makes it the perfect choice for commercial roofing. Fort Worth Roofing Office: 817-929-ROOF (7663) Dallas Roofing Office: 972-975-ROOF(7663) Article Source: http://oldproroofing.com/epdm-commercial-roofing/ This article was posted by Jeff Childers a Master Roofer At: Aquashield Roofing Corporation Class B Contractors License Number 2705-186085 4006 Morris Ct, Chesapeake, VA 23323 757-553-5191 https://aquashieldroof.com https://www.facebook.com/Virginiabeachroofing/ The most trusted roofer in the Hampton Roads area, Jeff Childers, operates Aquashield Roofing Corporation, the best and most trusted roofing company in the Tidewater area. Aquashield Roofing Corporation provides free estimates on roofing services. The roofers behind Aquashield Roofing Corporation are skilled with installing new roofs on both residential and commercial properties. Aquashield Roofing Corporation is the most skilled roofing contractor in the Hampton Roads region. Our roofing company provides commercial and residential roofing solutions across the seven cities. Some of our roofing service areas included are: Virginia Beach, Virginia, Chesapeake, Virginia, Norfolk, Virginia, Portsmouth, Virginia, Suffolk, Virginia, Newport News, Virginia, Hampton, Virginia. Call Aquashield Roofing Corporation now for a free roofing estimate at 757-553-5191. Roofing Contractor, Roofing Services, Roofing Repair, Roof Leak Repairs, Roofing Company, New Roof, Roof Replacement, Roofing Company, Roofing Companies, Free Roof Repair Estimate, shingle repairs, shingle roofer, Flat Roofer, Commercial Roofing, Residential Roofing, Asphalt Shingle Roofing, Honest Roofer, Troy J. Childers, Troy Jeffrey Childers, Jeff Childers Master Roofer, Troy Childers, Jeffrey Childers Master Roofer At Aquashield Roofing Corporation.