Posted on: 14 October 2015
If you have a roof with asphalt shingles that is no longer brand new, you should seal your asphalt shingles this fall and make them waterproof. This will extend the life of your asphalt shingles and protect all the layers of your roof from water.
Clean Your Roof
Before you seal your asphalt shingles, you need to clean your roof. You will need to wait one day in between cleaning your roof and sealing your roof.
The first thing you need to do is use a broom to gently brush off any dirt and debris. Don't get too aggressive with the broom; you don't want to sweep away the protective granules from the shingles on your roof.
Dealing With Mold, Mildew, Oil Or Grease
If your roof has any mold, mildew, oils or grease on it, you'll want to clean it off with a bleach solution. You'll want to mix four parts water with one part bleach inside of a container with a pump stray attachment. Before you take the solution up to your roof, you'll want to take your garden hose and spray down all the plants that are right next to your house; that way, if the bleach solution gets on them while you are cleaning your roof, they will not get damaged.
After you spray down the plants that are right next to your house, take the bleach solution and sprayer up to your roof. You'll want to spray the bleach solution evenly across your roof. Let it sit for around fifteen minutes to half an hour so it can break down and kill the targeted substances.
Once the appropriate amount of time has passed, use a scrub brush with a long handle to scrub away the residue on your roof. Then, get out your hose and rinse the remaining residue and bleach off of your roof.
Even if you don't need to apply a bleach solution to your roof, you should still spray it down with a hose ensure that your roof is clean. Allow your roof to dry for at least an entire day before moving on to the second half of this project.
Apply The Sealant
Once your roof has had enough time to dry, you can seal your clean asphalt shingles. You will need to purchase an asphalt sealant from your local home improvement store. Mix up the sealant according to the instructions on the container before you take it up to your roof. If the sealant you purchased did not come with its own spray container, mix it into a clean pump sprayer.
Start at the peak of your roof and spray the sealant evenly back and forth across the shingles, slowly working your way down to the edge of your roof. You may want to work in sections; after you spray the sealant on your roof, you'll need to take a point roller over your shingles in order to effectively spread the asphalt and adhere it to your shingles.
After you have sprayed and rolled your entire roof, let it dry for a couple of hours. Then, repeat the process again.
You should apply at least two coats of sealant to your asphalt shingles in order to ensure that every crack and crevice in your roof is effectively sealed. Although this project will take an entire weekend, you should not have to repeat this process for a number of years. Alternatively, you could leave this job to the professionals and call a roofing company like Darnell Construction.Share