To seal rolled roofing, you need to clean the surface, apply adhesive or tar, and seal all seams and edges with a waterproof coating. Rolled roofing is a budget-friendly option that lasts 5 to 10 years when sealed correctly. Many homeowners choose this material because it costs less than shingles. According to industry data, asphalt roofing systems remain the largest product segment in the roofing market. Proper sealing keeps water out and extends your roof’s life. This guide shows you the simple steps to seal rolled roofing the right way.
What Materials Do You Need?
You will need a few basic tools and materials to seal rolled roofing. Get a clean broom, a utility knife, roofing cement or tar, a caulking gun, and roofing nails. You may also need a sealing primer for wet surfaces.
Wear gloves and eye protection when working with tar or cement. Work on a dry day for the best results. According to RubyHome, roof installation costs range from $4 to $40 per square foot, so doing this job yourself can save you money.
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How Do You Prepare the Roof?
Start by clearing the roof of dirt, leaves, and debris. Sweep the entire surface with a stiff broom. Remove any loose pieces of old roofing material.
Check for cracks, holes, or damaged areas. If you find damage, mark these spots. According to industry data, the average U.S. roof size is 2,647 square feet, so take your time and inspect every section. Let the roof dry completely if it is wet or damp.
What Are the Sealing Steps?
Apply roofing cement along all seams, edges, and overlaps using a caulking gun. Press the rolled roofing down firmly as you seal. Work in small sections to ensure even coverage.
Nail down any loose edges with roofing nails spaced about 6 inches apart. Then apply a second coat of cement over the nails to seal them. Let each layer dry before adding the next one. According to RubyHome, asphalt shingles cost between $4.25 and $4.95 per square foot, making sealed rolled roofing a cost-effective choice for budget-conscious homeowners.
How Long Does the Seal Last?
A properly sealed rolled roof typically lasts 5 to 10 years. Cold weather and UV sun rays can break down the seal over time. According to industry data, most roofs last between 25 and 50 years depending on material type, but rolled roofing is more short-term. Inspect your roof twice a year. Look for new cracks or loose seams. Reseal any problem areas right away to avoid leaks and water damage.
| Sealing Step | Time Needed | Drying Time |
|---|---|---|
| Clean surface | 1-2 hours | None |
| Apply first cement coat | 2-4 hours | 4-8 hours |
| Nail and seal edges | 1-2 hours | 4-8 hours |
| Apply second coat | 2-4 hours | 24 hours |
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Talk with a local roof contractor to review your options and get a detailed estimate for your project.