When you need to cover a shed, garage, or low-slope porch without the cost and labor of shingles, there is a budget-friendly option worth knowing. Asphalt roof roll, commonly called rolled roofing, is a mineral-surfaced material made from the same asphalt as standard shingles but sold in long rolls that install quickly. It is not the right choice for every roof, but for the right application it is fast, affordable, and effective. This guide covers what it is, what it costs, where it works best, and how to decide if it fits your project.
What Is Asphalt Roll Roofing?
Rolled roofing is an oil-based asphalt product, essentially the same material as asphalt shingles, manufactured in continuous rolls rather than individual tabs. A typical roll covers about one roofing square, or 100 square feet, and is roughly 3 feet wide and 36 feet long, though it provides less coverage than its length suggests once you account for overlaps.
The surface is coated with mineral granules for weather and UV protection, similar to shingles. Because it comes in large pieces, it goes down much faster than laying hundreds of individual shingles, which is a big part of its appeal for utility structures.
Where Asphalt Roll Roofing Works Best
Rolled roofing is designed for low-slope roofs, generally those with a pitch too shallow for shingles but not flat. It is most often used on structures where appearance and longevity are secondary to cost and speed.
- Sheds and outbuildings
- Detached garages and workshops
- Porches and patio covers with low slopes
- Barns and agricultural buildings
- Temporary or quick-fix roofing needs
It is generally not recommended for the main roof of a home, both because it has a shorter lifespan than shingles and because it lacks the dimensional, attractive look most homeowners want on a house.
Cost: The Main Advantage
Affordability is rolled roofing’s headline benefit. The material itself is among the cheapest roofing options available, often a small fraction of the cost of architectural shingles per square. Combined with fast installation that cuts labor, the total project cost is low.
Because exact prices vary by region, brand, and current material markets, treat any figure as approximate and get local quotes. As a general rule, expect rolled roofing material to cost significantly less per square than standard shingles, with the bigger savings often coming from the reduced labor of covering large areas quickly.
Pros of Asphalt Roll Roofing
For the right project, rolled roofing offers clear advantages that explain its enduring popularity on utility buildings.
- Low cost: one of the most affordable roofing materials
- Fast installation: large rolls cover area quickly
- DIY-friendly: manageable for handy homeowners on small structures
- Lightweight: easier to handle and transport than bundles of shingles
- Good for low slopes: works where standard shingles cannot
If you are roofing a shed yourself on a weekend, the combination of low price and simple installation is hard to beat.
Cons to Consider
The trade-offs are real, and they are why rolled roofing is reserved for secondary structures. The biggest drawback is lifespan: rolled roofing typically lasts far fewer years than quality shingles, often in the range of 5 to 10 years depending on climate, exposure, and installation quality.
It is also less attractive, offering a flat, uniform look without the depth of dimensional shingles, which can lower curb appeal and resale value if used on a home. The seams where rolls overlap are potential weak points for leaks if not sealed properly, and the material can be more prone to tearing and weather damage than shingles.
Installation Methods
There are a few ways to install rolled roofing, and the method affects durability. The two most common are the exposed-nail method and the concealed-nail method.
- Exposed-nail method: the roofing is nailed through the surface and seams are sealed with roofing cement; fastest but leaves nail heads exposed
- Concealed-nail method: nails are hidden under overlapping courses for a cleaner, more weather-tight result
- Torch-down or peel-and-stick variants: some products adhere without surface nails for better waterproofing
Whatever the method, proper overlap, a clean and dry deck, and well-sealed seams are critical to preventing leaks and getting the most life out of the material.
Tips for a Successful Installation
A few best practices make a big difference in how long rolled roofing lasts. Let the rolls warm up in the sun before installing so they unroll flat without cracking, and work on a dry, debris-free deck. Use a quality underlayment where appropriate, overlap seams generously, and seal every seam and nail head with roofing cement.
- Acclimate rolls in warm weather so they lie flat
- Start at the lowest edge and work upward, overlapping courses
- Seal all seams and exposed fasteners with roofing cement
- Avoid installing in cold weather when the material is brittle
- Check the slope is adequate for water to drain off
How Long Does Rolled Roofing Last?
Lifespan is the trade-off you accept for the low price, so set realistic expectations. Rolled roofing typically lasts somewhere in the range of 5 to 10 years, considerably less than the 20 to 30 years you might get from architectural shingles. Harsh sun, freeze-thaw cycles, and standing water all shorten that life, while a clean, well-sloped deck and careful installation extend it.
You can stretch its service life with simple upkeep. Inspect the roof once or twice a year, especially after storms, and reseal any lifting seams or exposed nail heads with roofing cement before they let water in. Keep the surface clear of leaves and debris that trap moisture. Because the material is so inexpensive, many owners simply plan to recoat or replace it on a predictable cycle rather than expecting decades of service from a single application.
Is Asphalt Roll Roofing Right for You?
Choose rolled roofing when budget and speed matter more than longevity and looks, and when you are covering a shed, garage, or other low-slope utility structure. Skip it for your main house roof, where shingles, metal, or other materials will look better and last far longer.
An asphalt roof roll is the workhorse of inexpensive, quick roofing for secondary buildings. Know its short lifespan and modest appearance, install it carefully with well-sealed seams, and it will protect your shed or garage reliably for years at a fraction of the cost of a full shingle roof.
