Installing roll roofing material

You'll need to use plenty of pressure with the razor knife to cut the rolled roofing material. Place the first layer of rolled roofing on the roof. As you place the rolled roofing down, stretch it to get rid of wrinkles and creasing.

Push the rolled roofing down into the wet cement to secure it to the roof. Hammer nails into the rolled roofing to secure it. Make sure you use a strong hammer and 1 inch 2. Hammer the nails in at 10 inches 25 cm intervals across the roof.

Ensure that you hammer the nails properly into the roof, don't leave the nails sticking up above the layer. Make sure you have a stable grip on the roof. Measure and mark another chalk line above the first layer. Use your measuring tape again to measure up 32 inches 81 cm above the first layer. The shorter length is because you'll be laying part of the second layer on top of the first layer. Apply roofing cement and secure the second layer to the roof.

Get your trowel and another scoop of cement and apply it on the roof below the second chalk line. Once the cement is spread across the roof, it's time to place the second layer down. As mentioned above, place the first 6 inches 15 cm of the second layer on top of the first layer.

Repeat this process for the rest of the roof. Cover the nails with cement to secure them in place. When you have all of your layers applied and your roof is covered in rolled roofing, use cement to cover your nails. This will seal the nails into the rolled roofing. Trim the edges of the layers and seal the edges. Use your razor knife to remove any excess rolled roofing. Take special note of the corners and edges of the roof.

When you're finished trimming, test the edges to see if you can lift them. Clean the rolled roofing before you finish. Have another look at the roofing and use a brush to remove any excess dirt or other materials. There shouldn't be that much dirt on the roof at this point of the process.

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Support wikiHow by unlocking this expert answer. Not Helpful 0 Helpful 1. Include your email address to get a message when this question is answered. By using this service, some information may be shared with YouTube. The width of the rolled roofing can vary from 36 to 39 inches Just adjust the above dimensions up 3 inches 7.

Helpful 36 Not Helpful Use an underlayment under your rolled roofing for extra insulation and weather protection. You can find underlayment at your local home improvement or hardware store. Helpful 1 Not Helpful 0. Rolled roofing is not recommended for roofs that have a greater than a 2 to 12 pitch. That is, if your roof is 12 units wide it should not be taller than 2 units for rolled roofing.

Helpful 21 Not Helpful Do not try to apply rolled roofing in temperatures less than 45 to 50 degrees Fahrenheit 7. The roofing material can easily be cracked or punctured when cold or torn and the mineral coating rubbed off when hot. Helpful 0 Not Helpful 0. You Might Also Like How to.

How to. Expert Interview. More References 8. About This Article. Co-authored by:. Co-authors: Updated: October 8, When placing the second sheet, it should overlap the first by 4 inches, or you could use a different type of roll roofing to cover the area. Use a chalk line to indicate the top of the next sheet; then, you can roll it along the line and push nails for the first sheet.

The next step is to make pretty sure that no two butt joints get closer than 2 feet from each other. You can now spread a 6-inch-wide layer of the prepared roofing cement on the edge of the first sheet and entrench the second sheet in the cement.

To seal the vent, spread the roofing cement around the plumbing pipe and cut a hole in a piece of the roofing material. Now, the roofing piece should overlay the lower course by 4 inches or more. You should also make a hole in the roofing piece, and you can slip it over too. Then, you can now embed both cut roofing pieces in the cement, and for more roofing protection, you can add boot flashing.

We are slowly getting to the end of the installation. Now on the other edge of the valley, you can overlay the valley, hit a chalk line, and gently trim the piece that is located at the center of the valley.

While doing this, you should keep the nails 12 inches away from the center of the valley and use a 4-inch wide roofing cement bed to attach everything. You can simply overlap the sheets at the ridge using the cement and nails for the final piece. But note that the last piece does not come down at least 8 inches past the ridge peak. Ensure that the peak embedded in the cement is well covered. You can seal your roll roof with cement.

The cement is often applied on the surface of the nails. The seal will glue the nails to the roof. The reason is simple: both roll roofing and shingles are a composition of the same asphalt material. Besides, roll roofing is easier to install on your roof. 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 nailing , or 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 a heated asphalt compound, or cold-applied using a similar sealant that functions at lower temperatures.