Fort Worth Roofing: Article About Using Roof Cement

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Roof cement is an important part of any roof contractor's list of materials. It is an adhesive material applied with a trowel. Homeowners may want to keep a supply of roof cement on hand for minor repair jobs. A Fort Worth roofing contractor is likely to use some roof cement as part of many repair jobs. It is helpful if homeowners are informed about where it might be used on their roof.

All types of roof cement are made from asphalt, refined mineral spirits, reinforcing fibers and plasticizers combined in an emulsion. Various formulas may be used to adhere to wet or dry surfaces. This means that roof cement can be used to create seals during rainy or damp conditions, making it a common choice for emergency leak repairs. Roof cement is also commonly used to seal leaky gutters or fix small patches of rust. It may be used around flashing to help create a water tight seal between the flashing and the roof material. It may sometimes be used in place of other glues or sealants to hold down shingles.

Small to moderate sized cracks or holes can be completely patched with roof cement. A smooth top layer is applied over the hole up to 1/8 inch thickness.

Have a question regarding windows and doors or commercial roofing? Please ask any of the roofing contractors from Orlando Group Roofing of Fort Worth.

A layer of roof cement takes about 12 hours to dry, and multiple layers can be placed over a large crack or hole so long as each layer is allowed to dry completely before the next is applied. Thicker seals of up to half an inch are okay for flashing.

The roof cement may need additional structural support when placed over a large hole or crack. Polyester or fiberglass fabric can be used to bridge the gap. It is then covered with a liberal amount of roof cement. A gallon of cement covers about 12 square feet when applied to the standard 1/8 inch thickness. The cement should never be thinned in an attempt to cover more area. It is also a good idea to clean around the surface to be patched. Excessive dust, dirt or debris will compromise the seal and the integrity of the cement.

Certain roof types and materials are not compatible with roof cement. Certain plastics, such as PVC and EPDM, are chemically incompatible with roof cement and may be damaged by it. Metal roofing is also incompatible with the cement because thermal expansion and contraction will put it apart.

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