How To Apply Asphalt Roof Cement

Roof cement is an emulsion of asphalt refined mineral spirits plasticizers and non asbestos reinforcing fibers.

How to apply asphalt roof cement.

Roofing cement can be use to seal a roof and to fix tiles shingles roll asphalt and any other roof material. Roofing cement comes in a caulking tube ready for application or in a tub. Of course you can t use roofing cement for just anything but on the other hand it is a rather multi purpose product. Plastic roofing cement also called mastic asphalt plastic or flashing cement typically contains asphalt and various solvents and fillers.

Starting at the bottom of the roof map out a guideline with chalk. Application apply roof cement with a trowel going to a depth of about 1 8 inch. Use your chalk and tape measure to mark about 12 inches up on the roof for the first set of shingles. You can get special forms of roofing cement that can be laid down effectively even on a wet surface though the regular style adheres best to dry surfaces only.

Use a trowel to scoop up the roofing cement. If the sealant or cement doesn t come with an applicator you can use a caulking gun to apply it to the shingle. Continue to chalk additional guidelines based on the width of the shingle through at least four courses rows across the roof. Apply roofing cement to the roof.

Apply a heavy bead of asphalt cement. Dot the cement under and around the edge of the last ridge shingle where you removed the nail line. Spread the roofing cement along the edges of your roof so it s about 1 8 1 4 inch 3 2 6 4 mm thick. Apply the cement in stages.

Modern roof cement will not contain asbestos. It is applied to your roof along with your primary roofing material to provide a solid barrier against moisture and to prevent cracking and leaks. You can get roofing cement at the local hardware or building supplies store. Also apply asphalt cement over the nail heads exposed on the last ridge shingle to prevent water.