Techniques of Roofing

Roof Installation

• To intall a roof, you need to put down the first layer, which is called sheathing. This is often plywood sheets that are connected to the highest level of the home. This is the foundation of the roof. Next, the underlayment must be installed, a layer that prevents moisture from seeping through the roof. The outer layer will depend on the homeowner's preference. While some may choose to install asphalt shingles, others may prefer metal panels.

Re-Roofing

• You have two types of re-roofing techniques. One technique is to apply the new roofing material over the old one. However, some roofing tiles may not be able to be covered, because they are too heavy and cannot be nailed through. In this case, the whole roof will need to be removed before the new one can be installed.

Roof Repair

• Roofs may need repairs because of lack of maintenance, weathering or wind damage. If you've noticed a leak inside your home or shingles have broken off, you must first determine the extent of the damage. A damaged roof will either have missing shingles, or the shingles will be curled back and have rounded corners. If shingles are missing, new ones should be attached. If the shingles are damaged, they can be flattened with roof cement.

Roofing Permits

• Permit requirements vary depending on local government guidelines. In the District of Columbia, homeowners need a permit if they are installing or replacing a roof. If you have a metal roof, you will need a permit if the roof is being removed, repaired or replaced. With asphalt shingles, you don't need a permit if the area needing repairs is less than 100 square feet and is not more than two layers.