How to Install Roll Roofing

How to Install Roll Roofing

Roll roofing is the easiest roofing material that you can install on your own. It is nothing but roofing sheets that are manufactured in rolls. These rolls are installed as overlapping stripes. A durability of a maximum 12 years makes roll roofing a popular roofing material. These sheets are available in a wide range of materials, but the most used ones are made of asphalt, coated with felt or fiberglass. Basically the combination of its contents depend upon the requirements of its user. Changes are made in the composites of the sheets to enhance some unique qualities such as adhesion, slip resistance, water absorption, tear resistance, and remarkable flexibility.

These roofing sheets are mostly ideal for slightly sloping roofs of garages, additional porches, or for a shed. If you want to finish the home construction on your own, then roll roofing is the best option in place of conventional roofing shingles that you may have. The most important thing to consider is the climate on the day of the roll roofing installation. It must be sunny and not cold because the coldness will make the roofing unannealed hence, stiff. The roll sheet must be exposed to the sun for a whole of 24 hours before the actual installation process begins. This becomes necessary in order to make the rolls flat.

There are two installation methods, the hot asphalt method and the cold asphalt method. Where the hot asphalt method is a bit conventional, the cold asphalt method is the more popular one. In the cold asphalt method, spreadable adhesive is smoothed on the roof top initially and then the sheets are spread over it. Roll roofing can be installed using a simple adhesive, without using any nails. Before installation, make sure that the roof top is totally clean and dry.

We haven’t gotten around to discussing the kind of roofing that one must select. The type of roofing depends on the individual person’s requirements.

Types of Roll Roofing

  • Eaves flashing roofing — This is a polymer modified bituminous roofing roll, that works as a self adhesive. It is specially designed for pooling water or as an ice developing area.
  • Smooth surface roll roofing — This roofing consists of ground talc or mica, designed as a flashing for the extrusions and overlapping of the seals. It is specifically used for the roof’s overhanging, valleys, and also as an extra sealant on almost every kind of roof.
  • Mineral surfaced roll roofing — The surface of this roofing consists of mineral granules and small rocks. It is most commonly used for small structures like storage buildings, barns and extensive sheds.
  • Saturated felt roofing — This is an organic based asphalt roll roofing, underlaid between the roofing material and the roof deck.

Installation Tips and Steps

  • It is suggested to use a proper underlayment, as it enhances the durability of your roofing material.
  • You will need to apply the starter strip. For this, you will have to cut a strip from the roofing sheet roll 17 inches wide. After applying some cement on the eaves of the roof, place the 17 inch starter strip on the eaves and spread it by pressing hard with the roofing roller.
  • Now nail two rows on the flat strip at an interval of 12 inches each.
  • Before you install the actual roll roofing, you will have to place the course on the freshly laid starter strip.
  • Again, add two rows of nails on the course. The distance of the nails from the top of the course should be 13 inches with 4 ½ inches between them.
  • After placing the course, place the nails 12 inches apart from each other and hammer down on them.
  • Roll the roofing back and cover its whole surface with the roofing cement.
  • Sealing the vertical overlaps is the most important thing. The overlapping of the sealing must be at least 6 inches. The nails must strictly be 1 inch apart from the edge of the roof and 4 inches from each other. The overlapping must also be sealed by spreading the roofing cement on it.
  • Finally, you will have to seal the sloping ends and the ridges of the roof.
  • Once you are done with sealing everything, all you need to do is trim all the rakes using a utility knife.

This is how you can go about installing a roll roofing. One must remember that roll roofing sheets are the most delicate of all types of roofing, they’re ideal for outhouses or porches because of their relatively short life span. Though this task does not require professional intervention, however, it would be wise to take the help of another person so that your work is divided.

Last Updated: January 23, 2012

on 06/24/2006

Many people want to install roll roofing due to the fact that roll roofing is an inexpensive alternative for many roofing needs. It is much more convenient and easy to install than other roofing choices. If you want to install roll roofing, then you will be pleasantly surprised to know that there is only one sheet of roll roofing needed, compared to three layers in other roofs.

Roll roofing is a suitable choice for roofing material because it can last between 6-12 years. It is made out of the same substance as shingles; asphalt coated fiberglass or felt. IT installs with very little effort and in an expedient manner. If you want to re roof a shed, the choosing single layer roll roofing is recommended. You can use single roll roofing on a roof that has a flat roof, not one that has an inclined slope.

Double Coverage

If a roof is almost completely flat, then it is recommended that you use what is known as double coverage selvage. Before you install roll roofing, you should understand that this type of roofing is more delicate than other roofing materials. In fact, if the weather becomes too cold, it may crack or become damaged. Best results are achieved when it is installed at temperatures of 45 degrees F or above. If you wanted to install roll roofing in a cold climate, you can successfully accomplish this, as long as you warm the roof rolls first.

It is very important before you install roll roofing that you make sure each piece is completely flat and smooth. If It isnt, or if your roll roofing has a dried puckered look or is curling, then you will need to straighten it.

You can accomplish this by straightening out the pieces, and then cutting them into sheets that are between 12 or 18 feet in length. After you successfully cut the pieces, you can stack them so that they will dry. It should take anywhere between sixty minutes to one hour for your cut pieces to return to a completely flat state.

Install Roll Roofing: Step by Step

It isnt essential that you use underlayment underneath your roll roofing, but it is suggested. By using underlayment you will protect the surface and extend the life of your roll roof. So, before you install roll roofing, consider using an underlayment.

The second step when you install roll roofing is to apply the Starter Strip. To do this, you begin by cutting a strip that is 17 inches wide. Next, apply a layer of roofing cement along the eaves of your roof. Lay down your 17 inch wide starter strip then used a roofers roller to lay the starter strip flat. Next, you will nail two rows of nails at 12 inch intervals across the strip.

Third Step To install roll roofing you will need to add the course. To do this, you will place the course over the starter strip that you just laid.

Step 4 Now, you will nail the course with two rows of nails. The two rows should be 4 ½ inches and 13 inches from the top of the course.

Step 5 Place your nails 12 inches apart and hammer them in.

Step 6 Now you will roll back the roofing and coat it with a layer of roofing cement.

How to Install Roll Roofing

Step 7 Sealing vertical overlaps is an important step when you install roll roofing. Make sure that the seams overlap by at least six inches. You will nail the sheet, keeping the nails at least 1 inch from the edge.

Space the nails about four inches apart. To seal the overlap, spread a layer of roofing cement to cover the sheet. Next you will seal hips and ridges, and finally you will trim the rakes.

If you own a building that has a flat roof, or a shed that needs a roofing upgrade, you may be interested in learning how to install roll roofing. If you’ve never heard of roll roofing, you may be surprised to discover that it’s not only one of the easiest types of roofs to install, it’s also one of the more cost effective means of installing a new roof .

What Is Roll Roofing?

Roll roofing is a composite sheet of roofing material manufactured into a roll so it can be laid on the roof in strips that overlap each other. The roofing material used to make the roll can vary depending on the type one desires for their roof. Common materials used to make roll roofing sheets are similar to what’s found in most traditional roofing shingles and can include:

  • Asphalt
  • Fiberglass
  • Asphalt-saturated organic felt
  • Asphalt-coated fiberglass

Benefits and Challenges of Installing Roll Roofing

Roll roofing is not only typically less expensive than installing a traditional shingle or latex roof, it also poses a number of other benefits for the homeowner, such as:

  • Easy install
  • Lasting up to 12 years
  • Ability to be bought and cut according to the amount you need

While learning how to install roll roofing certainly has its advantages, it doesn’t come without its challenges. If the roof is not laid properly, there may be some waterproofing issues that may arise. Roll roofing material is also not commonly recommended for use on a home’s sloped roof, but certain types can be used on steep or low-sloping roofs as long as the roof is installed by a professional who knows how to handle the challenges of doing so. Additionally, whereas a traditional shingled roof is comprised of three layers, roll roofing has only one layer.

Roll roofing is pretty plain looking as well, which makes it a more practical choice for roofing a shed or a part of your house that’s not visible from the curb. It’s not really recommended for use if you’re looking to completely renovate your home’s appearance.

Installing Roll Roofing

When installing roll roofing, the material provides an all-in-one roofing solution so an underlayment is not necessary, although almost every professional roofer will recommend one be laid prior to installing the roll roofing for added protection. By installing an underlayment, you’ll extend the life of your rolled roofing material.

Before you begin installing the rolled roof, lay the sheets out flat and straight to avoid puckering or curling after installation. To make this easier to do, cut the rolls into several sheets sized between 12 and 18 feet long. Once cut, stack the sheets on top of each other to speed the flattening process and help dry the sheets out slightly. It can take up to an hour for the sheets to become flat enough to work with.

Cut a strip of roll roofing approximately 18-inches wide (this is going to be your starter strip). Apply about a three inch layer of roofing cement along the eaves of your roof where you are going to begin your installation. Set the starter strip over the cement so it hangs over the eaves by a half-inch and use a roofer’s roller to flatten it down. Nail the starter strip in place by driving galvanized roofing nails every three inches along the seam and edge.

Use roofing cement (about a two-inch layer) to cover all nail seams and edges and cut away the excess overhang with a utility knife so the new roofing edge is lined up with the underlayment.

Use a chalk line and snap a straight line set two inches down from the top of the starter strip. Cover the area above the chalk line with roofing cement and use the chalk line as a guide to where to lay the next sheet of roofing. Nail the section down and lap cement every nail.

Once both sides of the roof are covered with the roll roofing material, cut a 12-inch wide length of roll roofing to cover the hips and ridges on the roof. Nail down the ridge seat and apply lap cement to finish and seal.

Tips for Installing Roll Roofing

Follow these tips to make sure your new roof goes down smoothly.

  • Clean the roof area of any sticks or small stones as over time they may poke holes through the roll roofing material. It is also advised to install a drip edge along the roof’s edge.
  • On high-pitched roofs, install the roll roofing vertically; lower sloped roofs allow for an easier horizontal installation.
  • It’s not recommended to install roll roofing when the temperature is below 45 degrees Fahrenheit.

na 06/24/2006

Many people want to install roll roofing due to the fact that roll roofing is an inexpensive alternative for many roofing needs. It is much more convenient and easy to install than other roofing choices. If you want to install roll roofing. then you will be pleasantly surprised to know that there is only one sheet of roll roofing needed. compared to three layers in other roofs .

Roll roofing is a suitable choice for roofing material because it can last between 6-12 years. It is made out of the same substance as shingles ; asphalt coated fiberglass or felt. IT installs with very little effort and in an expedient manner. If you want to re roof a shed. the choosing single layer roll roofing is recommended. You can use single roll roofing on a roof that has a flat roof. not one that has an inclined slope .

Double Coverage

If a roof is almost completely flat. then it is recommended that you use what is known as double coverage selvage. Before you install roll roofing. you should understand that this type of roofing is more delicate than other roofing materials. In fact. if the weather becomes too cold. it may crack or become damaged. Best results are achieved when it is installed at temperatures of 45 degrees F or above. If you wanted to install roll roofing in a cold climate. you can successfully accomplish this. as long as you warm the roof rolls first .

It is very important before you install roll roofing that you make sure each piece is completely flat and smooth. If It isnt. or if your roll roofing has a dried puckered look or is curling. then you will need to straighten it .

You can accomplish this by straightening out the pieces. and then cutting them into sheets that are between 12 or 18 feet in length. After you successfully cut the pieces. you can stack them so that they will dry. It should take anywhere between sixty minutes to one hour for your cut pieces to return to a completely flat state .

Install Roll Roofing. Step by Step

It isnt essential that you use underlayment underneath your roll roofing. but it is suggested. By using underlayment you will protect the surface and extend the life of your roll roof. So. before you install roll roofing. consider using an underlayment .

The second step when you install roll roofing is to apply the Starter Strip. To do this. you begin by cutting a strip that is 17 inches wide. Próxima, apply a layer of roofing cement along the eaves of your roof. Lay down your 17 inch wide starter strip then used a roofers roller to lay the starter strip flat. Próxima, you will nail two rows of nails at 12 inch intervals across the strip .

Third Step To install roll roofing you will need to add the course. To do this. you will place the course over the starter strip that you just laid .

Step 4 Now. you will nail the course with two rows of nails. The two rows should be 4 ½ inches and 13 inches from the top of the course .

Step 5 Place your nails 12 inches apart and hammer them in .

Step 6 Now you will roll back the roofing and coat it with a layer of roofing cement .

Step 7 Sealing vertical overlaps is an important step when you install roll roofing. Make sure that the seams overlap by at least six inches. You will nail the sheet. keeping the nails at least 1 inch from the edge .

Space the nails about four inches apart. To seal the overlap. spread a layer of roofing cement to cover the sheet. Next you will seal hips and ridges. and finally you will trim the rakes .


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