- Mark a chalk line to identify the end of your first layer. ...
- Apply roofing cement to the roof. Use a trowel to scoop up the roofing cement. ...
- Cut the rolled roofing to the right size using a razor knife. ...
- 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.
- Hammer nails into the rolled roofing to secure it. Make sure you use a strong hammer and 1 inch (2.5 cm) roofing nails.
- 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.
- Apply roofing cement and secure the second layer to the roof. ...
- Cover the nails with cement to secure them in place. ...
- Trim the edges of the layers and seal the edges. Use your razor knife to remove any excess rolled roofing.
- 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.
Can you nail down roll roofing?
Do you nail down roll roofing? Nails are typically used to secure this type of roof. You can nail the separate layers by hammering the nails in 10-inch intervals across the roof. After that, you'll want to use cement to cover them and seal them in place.
How do you install rolled asphalt roofing?
Six Steps to Install Roll RoofingStep 1: Prepare the Roof. In preparation for installing the roofing material, you first want to clean the roof. ... Step 2: Apply Roofing Cement to the Edges. ... Step 3: Attach the Base Sheet. ... Step 4: Attach the Second Sheet. ... Step 5: Seal the Vents. ... Step 6: Overlap the Valleys.
Do you glue down roll roofing?
You can seal your roll roof with cement. But before you do it, make sure that you've applied all materials to the layers, trimming the edges and the layers with the use of a razor knife. The cement is often applied on the surface of the nails. The seal will glue the nails to the roof.
Do you put felt under rolled roofing?
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.
How long does asphalt roll roofing last?
5 to 10 yearsIt is easy to install, making it a popular option for DIYers and for small areas like sheds and garages. However, asphalt roll isn't the best choice for most homes due to its very short lifespan. The average lifespan of asphalt roll roofing is only 5 to 10 years.
What is the minimum pitch for roll roofing?
2:12 pitchOtherwise, the safest minimum pitch for rolled roofing is 2 inches of decline per 12 inches of horizontal direction (2:12 pitch).
What is roll roofing adhesive?
Henry® 203 Roll Roofing Adhesive is a premium, brush or squeegee grade, waterproof adhesive made from asphalt, solvents, and organic fibers. As a replacement for hot asphalt in built-up roofing (BUR) applications, Henry 203 Roll Roofing Adhesive is designed for bonding layers of asphalt coated base sheets.
Can you put rolled roofing over old rolled roofing?
You can install roll roofing directly over a single layer of existing roof covering, but if there are already two coverings, you must remove both.
What is the best underlayment for rolled roofing?
Synthetic Underlayment This is currently the most popular choice for roof underlayment, and with good reason. Made with an asphalt-saturated basemat and fortified with a mix of fiberglass, this product is not only extremely water-resistant, much stronger and more resistant to tears than other types of underlayment.
How do you install rolled roofing over existing roofing?
Before you begin, thoroughly clean the existing roof, removing any debris like leaves or sticks. Then, install a layer of roofing felt to provide a sturdy base for the new roll roofing. Once this has been done, the roll roofing can be installed in the same manner as if it were over bare roof sheathing.
How wide is a roll roof?
The width of the rolled roofing can vary from 36 to 39 inches (9 1.4 to 99.1 cm) depending on your supplier. Just adjust the above dimensions up 3 inches (7.2 cm) for the chalk line.
What is the pitch of rolled roofing?
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.
How far should the first layer of a roof cover the roof?
The first layer should cover the roof as far as the chalk line.
How to measure a roof section?
If your roof is not uniform and has different sections of different sizes, measure 1 section at a time. Multiply each length and width to find the area of each section.
How to measure a roof?
Use a long measuring tape. If your roof is rectangular or square on either side, it's easy to work out the measurements. Measure the length and width and multiply them to find the area of the roof. If your roof is not uniform and has different sections of different sizes, measure 1 section at a time.
Where to read instructions on roofing cement?
Read the instructions on the side of the roofing cement container before you begin.
Who owns Bumble Roofing?
This article was co-authored by David Bitan. David Bitan is a roofing professional, licensed contractor, and the owner and founder of Bumble Roofing based in Southern California.
What is the best way to waterproof a roof?
Chalk line. One of the cheapest and simplest methods for creating a waterproof roof is to use asphalt roll roofing. Although not recommended for house roofing, it is ideal for sheds and garages that have a pitch at least 16 percent from horizontal.
Is roll roofing a good idea?
Also, if the weather is very hot or cold, installing roll roofing is not a good idea because it will either be too flexible or too brittle to use.
What do I need to Install the Roll Roof?
Here are some of the tools you need for the effective installation of a roll roofing.
How far should a nail be from the edge of a sheet of roofing?
For a good installation, the nail should only be 1 inch from the edges, and for more protection, you could add a 3-foot wide strip on the 18-inches. 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;
How far away should you nail a valley roof?
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.
How far away should you keep nails from 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.
How long does it take to install a roll roof?
Having someone work with you, you can spend half a day installing the roll roofing and flashing with only little complications. Since roll roofing is the least difficult of roofing materials to install, you can prepare the roof for re-roofing by tearing off the old shingles.
How wide should a hole be for a roof?
The hole should be about 2 feet wide, so it’s easy to slip it over the pipe. 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, ...
Is it necessary to install an underlayment on a roof?
It depends on your budget, but installing an underlay is not out of necessity but preference. While roll roof underlay is not costly, they offer some layers of protection. Make sure you nail down the underlay and then roll it, making sure it is both smooth and flat.
Where to cut roll roofing?
Cut the roll roofing into working lengths and stack them on the upper roof near the ridge, allowing the cut-lengths to warm and flatten before moving them into position down-roof for installation. Tarco and other manufacturers recommend that you cut the roll roofing into "manageable lengths" before installation.
How long does asphalt roll roofing last?
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. The life of roll roofing may be extended by coatings.
What should be flush with the underlying cant strips at the roof gable ends?
Roll roofing starter course: the ends of the roll roofing should be flush with the underlying cant strips at the roof gable ends or rakes, and the lower edge of the first course should be flush with the lower edge of the cant strip that was nailed along the lower roof edge.
What happens if you pond your roof after rain?
If the roof decking sags, ponding on the roof surface after rain may reduce its life. 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.
What is the simplest roofing material to install on a low slope roof?
Roll roofing is simplest product to install on a small section of low slope roof is 90-pound roll roofing. This is an inexpensive roofing material often installed (over 15# felt underlayment) by homeowners and do-it-yourself-ers.
What is the basic roofing sequence?
The basic roofing sequence is. Inspect the condition of the existing roof and roof decking. Plan and schedule any demolition, removal of materials that must precede the new roof installation. Have roof protection tarps or other materials if the roof might be left open and incomplete across inclement weather.
What is asphalt roofing?
Traditional asphalt-based roll roofing consists of a heavy, asphalt-saturated organic or fiberglass felt with a granular surface.
