The Important Parts of Residential Roofing System
To be able to maintain one’s home in the best condition, a homeowner should take time to know and learn about the basic structures so that when the time comes for a major repair or for an additional improvement to be done, there won’t be much of a problem in discussing thoroughly these projects 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.
Roofing underlayment is a material that is first installed directly onto the roof deck as an added material protection from the coarse weather condition and because of this reason, most underlayment materials are water-resistant. There are three types of underlayment: the asphalt-saturated felt or commonly referred to as felt paper or tar paper, which is made up of cellulose, polyester, bitumen or asphalt; synthetic underlayment, which is basically saturated in asphalt but with the addition of a fibreglass component to give an effect of tear resistance and stability to the underlayment material; and the rubberized asphalt underlayment, which consists of asphalt and rubber polymers and is designed with a special backing which provides the waterproof seal between the underlayment and the roof deck.
Roof flashing is considered a major component in roofing because it functions as a sealer to certain areas in the roof, specifically the roof joints, where it is highly susceptible to water leaks. 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. Most roof flashing materials are soldered into the areas where flashing is needed most and in these areas, different ways of flashing is introduced, such as step flashing around the sides of the roof, chimney flashing, and saddle flashing around the top.
Shingles or tiles are the outermost part of the roofing system which covers the underlayment and are the ones that are subject to the different kinds of weather condition, that is why their materials range from concrete, metal, or a good kind of wood, asphalt, clay, rubber, slate. Since the main function of roof shingles is to prevent any water leaking through the roof structure, they are usually designed as either flat or curved and installed by interlocking or overlapping with each other and they also come in many forms according to cost, weight, durability, color and style.