Understanding Roofing

Basic Components of a Residential Roof

Owning a house requires a lot of responsibility to maintain it in good condition and part of that responsibility is having a better understanding about the basic structures in the house, so that gaining as much information may help you settle well in discussing major repairs or additional improvements in the house with the contractor.

A knowledgeable homeowner on the basic parts of a home will see to it that the right kind of home materials should be considered for his home to be in good condition, such as for example when it comes to the roofing system, having an idea about the basics will certainly allow him to choose the right roof materials for his home. There are three important parts in the roofing system: underlayment, flashing, and shingles or tiles.

Once the roof structure is in-place, an underlayment is directly applied over it, which is a material that is waterproof and functions as a protector of the roof structure from the harsh weather condition. Roofing underlayment comes in three main types and each type is designed to highly protect the roofing structure from all kinds of weather conditions and they are: the conventional asphalt felt paper or also called tar paper, which is actually made up of a high percentage of asphalt or bitumen, polyester and cellulose; the synthetic type is basically still of asphalt but with a mixture of fibreglass to provide more resistance from tear and make the underlayment stable; and the rubberized asphalt underlayment that consists of a greater percent of asphalt and rubber polymer, designed with a special back that acts as a waterproof seal between the underlayment and the roof deck.

In the roof structure, there are certain areas in it that can be susceptible to water leaks and this is the reason why roof flashing is introduced as a sealer between the roof joints to prevent water leaking through the roof. The galvanized sheet metal is known to be the most preferred roof flashing material, while the aluminium and copper can also serve well as a flashing material sealer. There are many ways of installing roof flashing according to the areas on the roof deck, such as step flashing around the sides of the roof, chimney flashing, and saddle flashing around the top, but the measure used in installing roof flashing is by soldering.

The outermost covering that superimposes the underlayment is the roof shingle or roof tile, which is basically exposed to all kinds of weather condition and this is why roof shingles are made up of sturdy materials, such as concrete, metal, or a good kind of wood, asphalt, clay, rubber, slate. Roof shingles are usually designed as either flat or curved tiles that interlock or overlap with each other so that water is unable to penetrate through it and there a wide array of choices depending on the cost, weight, durability, color and style.

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