There are a number of different parts to your homes roof. This blog is designed to give you an idea of the different part of your homes roofing system and how they work together to keep your home’s interior dry.
There are many roofing components located under the singles that protect your home that the average home owner never see but is important to the overall effectiveness of the roofing system. The roof structure starts with rafters and decking boards. Next the roofing material is covered with flashing around the edges of the roof (drip edge) and at any points where a chimney or a vent pipe comes through the roof from the inside of the home. The roof is then covered with a felt underlayment for a moisture barrier. Then the shingles are installed. If all these steps are done properly your roof can last 25 to 30 years leak free. All of these layers of materials make up a roofing system; together they keep the wind and weather outside where it belongs.
The decking is usually made of a wood material like OSB (oriented strand board) or plywood. Depending on the application it can also be constructed from polystyrene, concrete, and even metal. When the decking is securely fastened to the rafters of the home it creates a roofing system foundation. Like any other construction project the foundation is the first step to a perfectly completed project.
Once the roofs decking is securely fastened with nails, an underlayment is applied. Underlayment is usually constructed from a felt material. It will provide a temporary wind and rain barrier while asphalt shingles are being installed. Marty Construction uses Owens Corning and Tamko roofing materials. We believe using high quality building material pays huge dividends in the long run. You want to make sure you’re your contractor applies the rolled felt from the bottom of the roof to the peak. Professional contractors will make sure to leave a large overlap at the seams to ensure the water funnels downward to the gutter and downspouts and not into your kitchen or living room.
You will want to make sure your roofing contractor installs a drip edge around the edges of the roof. A drip edge is simply an angles aluminum strip that is nailed to the underlayment. It main purpose is to make sure rain water runs off the roofing structure in the gutters. Additional flashing should be placed over any joints in the roof or wall structure. It should also be used at any point where a chimney or a vent pipe comes through the roof from the interior of the home. The sole purpose of flashing is to keep water from leaking into your home. Flashing can be made of aluminum, galvanized steel and even rubber gaskets. Whatever flashing material your contractor chooses it should be weather resistant, durable, and low maintenance.