How to Install Roll Roofing
Jun 15, · How to do it. Roll Out Materials. Install drip-edge flashings, roofing felt, and WSU, if needed. You can install metal valley flashing, but it is common to simply Attach First Course. Attach Second Sheet. Spread Roofing Cement. Seal Vents. Source Roll Roofing on Amazon. Step 1 - Prepare the Roofing. Roll roofing is not very pliant or flexible in cold weather of fewer than 45 degrees Fahrenheit and it can crack and break if it is manipulated while cold. If it does have to be installed in cold weather, cut it into 12 to foot sheets and lay them flat inside a garage to warm up and flatten out.
InspectAPedia tolerates no conflicts of interest. We have no relationship with advertisers, products, or services discussed at this website. Here we include detailed step-by-step instructions for a typical roll roofing installation job using either traditional asphalt roll roofing or SBS roofing.
This article series describes mineral-granule coated asphalt or SBS rubber-based roll roofing roofing materials, choices, installations, inspection, defects, roofing repairs, and product sources. This article includes a description of severe wear and early failure of a mineral-granule-surfaced roll roofing installation over an older metal roof. Roll roofing is simplest product to install on a small section of low slope roof is pound roll roofing.
This is an inexpensive roofing material often installed over 15 felt underlayment by homeowners and do-it-yourself-ers. Traditional asphalt-based roll roofing consists of a heavy, asphalt-saturated organic or fiberglass felt with a granular surface. SBS or modified asphalt mineral surfaced roll roofing membranes are based on SBS, a synthetic rubber that gives improved performance over traditional asphalt-saturated felt. Fiberglass mineral-surfaced roll roofing is installed using mechanical fasteners nailingor hot or cold processes to seal between plies.
Hot-mopping requires commercial asphalt heating equipment while cold process adhesives are usually brushed-on directly - no heating is required. Plan the roofing job, the job sequence, the purchase of materials, and be sure you have all needed materials on hand before starting the job.
The basic roofing sequence is. Watch out : If you must install roll roofing at lower temperatures store it indoors and warm it to permit unrolling without cracking the material. We can sometimes spot roll roofing installed from too-cold rolls by later failures appearing as cracks, at regular or decreasing intervals across the width of the material.
Our photo shows our client pointing to a low slope area on a roof where mineral-granule coated asphalt roll roofing was applied after shingles in that location had leaked repeatedly.
Nonetheless roll roofing installations will have a longer life if installed according to the product manufacturer's instructions, nailed at proper intervals, and with seams properly sealed. Overlapping strips of asphalt roll roofing are installed over the roof surfaces with overlapped edge joints sealed, usually with what are whooping cough symptoms heated asphalt compound, or cold-applied using a similar sealant that functions at lower temperatures.
Probably in part because asphalt roll roofing is typically used on low slope and nearly flat roofs, it can have an anticipated wear life of less than ten years, often five years.
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Carson Dunlop Associates' provides extensive home rolled roofing how to install how to get muscles cut and report writing material. The text is intended as a reference guide to help building owners operate and maintain their home effectively.
Field inspection worksheets are included at the back of the volume.
Roll roofing is made from the same asphalt composition material as shingles, and it's easier to install. There are three systems, including glue-down, torch-down and peel-and-stick. Peel-and-stick.
For an affordable roof option, consider roll roofing. This material is very easy to install and only requires basic carpentry skills. For a utilitarian solution when appearance isn't as important, consider roll roofing, which is made of materials similar to composition shingles but generally not as durable.
Be sure to check the warranty, which may be for only one year. If you install roll roofing using the double-coverage method, it will last longer. Roll roofing is often installed over bare wood sheathing or sheathing that has been painted with a primer. Applying roofing felt first will better protect the sheathing against condensation, as well as against leaking. If the roof is sloped, you can use the exposed-nail method.
For a slightly sloped roof, use the concealed-nail method shown. For a flat or nearly flat roof, use double coverage, although a torch-down modified bitumen or EPDM roof is a better solution.
Working with a helper, expect to spend half a day installing flashings and roll roofing for a square-foot roof with modest complications. Prepare the roof by tearing off the old shingles, or by preparing for a reroof. Since this is the least difficult of roofing materials to install, only basic carpentry skills are needed.
Install drip-edge flashings, roofing felt, and WSU, if needed. You can install metal valley flashing, but it is common to simply apply an inch-wide strip of roll roofing instead. Set it in a bed of roofing cement, smooth out any creases, and drive nails near the edges. Drive nails every 3 inches along the rake at one end, pull it taut, and drive nails along the eave edge. The nails should be about 1 inch from the edges.
For extra protection add a 3-foot-wide strip on top of the incher. The next sheet overlaps the first by 4 inches or with some types of roll roofing, enough to cover the area that is bare of mineral surfacing. Snap a chalkline indicating the top of the next sheet, roll it out along the line, and drive nails as for the first sheet. Plan so that no two butt joints are closer than 2 feet from each other. Spread a 6-inch-wide layer of roofing cement on the edge of the first sheet and embed the next sheet in the cement.
To seal a plumbing vent, spread roofing cement around the pipe. Cut a hole in a piece of roofing about 2 feet wide and slip it over the pipe. The piece should overlap the lower course by at least 4 inches. Cut a hole in the roll roofing and slip it over as well.
Embed both roofing pieces in cement. For added protection add a boot flashing. Work from one side roof past the center of a valley by 2 feet.
Then, working from the other side, overlap the valley, strike a chalkline, and trim the piece at the center of the valley. Keep nails at least 12 inches from the center of the valley; use a 4-inch-wide bed of roofing cement to attach everything that is closer than 12 inches. In most cases you can simply overlap the sheets at the ridge using roofing cement and nails for the final piece. However if the final piece does not come down at least 8 inches past the peak, cover the peak with a inch-wide strip that is embedded in cement.
If you have a sloped roof, cut strips of roofing 9 inches wide, position them flush with the drip edges along the eave and rake, and attach them by driving two rows of nails that are about 3 inches apart. Use a trowel to spread roofing cement over half or more of the strips. Position and roll out the roofing carefully because it is not easy to reposition, then press it into the cement. Nail only its top edge the part that is bare of mineral coating.
Coat the top edge with a 4- to 6-inch-wide layer of roofing cement and apply the next courses in the same way. How to Install Roll Roofing.
June 15, Save Pin FB ellipsis More. Inspiring Exterior. See also. Roofing Materials Learn about all of the different materials you can use on your roof. Roofing Calculator Learn how much roofing material you'll need with our free calculator. Comments 2 Add Comment. View Comments. How difficult was this project? Very easy. Kind of easy. Kind of hard. Very hard. August 8, Difficulty: Kind of Easy. What was meant by the eighteen inch strip? September 17, The only-problem I had was figuring out what he means by rake and stuff.
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