How To Apply Asphalt Roof Cement

Apply the cement in stages.

How to apply asphalt roof cement.

Starting at the bottom of the roof map out a guideline with chalk. 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. Application apply roof cement with a trowel going to a depth of about 1 8 inch. There are formulas for dry and wet surfaces.

You can get roofing cement at the local hardware or building supplies store. 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. If the sealant or cement doesn t come with an applicator you can use a caulking gun to apply it to the shingle. Plastic roofing cement also called mastic asphalt plastic or flashing cement typically contains asphalt and various solvents and fillers.

Roof cement is an emulsion of asphalt refined mineral spirits plasticizers and non asbestos reinforcing fibers. Dot the cement under and around the edge of the last ridge shingle where you removed the nail line. Also apply asphalt cement over the nail heads exposed on the last ridge shingle to prevent water. Continue to chalk additional guidelines based on the width of the shingle through at least four courses rows across the roof.

Nail at the four corners to the end of the ridge and always add a little dab of tar to cover the nail heads. Roofing cement can be use to seal a roof and to fix tiles shingles roll asphalt and any other roof material. At any hardware or home improvement store you ll be able to pick up roofing sealant or cement. 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.

Modern roof cement will not contain asbestos. Roofing cement comes in a caulking tube ready for application or in a tub. Use a trowel to scoop up the roofing cement. Apply a heavy bead of asphalt cement.