Albany Roofers: Article About Anatomy Of A Roof
To the layperson, a roof simply looks like a layer of shingles; however, a roof is much more than meets the eye. It is a complicated system made up of different components that work together to protect a home. If one piece of the system is damaged, they all are at risk for being compromised. Each layer has its own specific purpose. It is important that homeowners are aware of some basic information regarding their roofing systems. This can help them in the event of a problem with their roof or to help them understand more when speaking with their professional Albany roofers.
The base of the roof is known as the decking. Materials for the decking can vary, but it is usually oriented strand board, plywood or a polystyrene material, although concrete and metal decking can also be used. The decking is attached to the rafters of the home by nails, crafting the foundation for the entire roofing system.
Above the decking is the underlayment. The underlayment is usually made of felt or some type of durable paper, which has been covered with asphalt.
The roofing contractors at Ideal Construction of Albany can assist you with any questions regarding roofing or siding.
The purpose of the underlayment is to protect the decking in the event that there is a problem with the shingles, such as ones that are missing, displaced or cracked. It adds another layer of protection onto the roof. On most roofs, the underlayment is rolled horizontally onto the roof. It is installed with a fair amount of overlap in order to help keep the water rolling down the roof and not into the seams between the underlayment.
The flashing, also known as the drip edge, usually consists of aluminum strips that are angled and nailed over the underlayment. Flashing is used in specific places, such as at the edges of the roof, around chimneys, ventilation pipes and sunroofs. It stops water from collecting in any of these areas and guides it into the gutters.
The shingles or tiles, which can be made of asphalt, wood, metal, clay, concrete or slate are the outermost layer of the roofing system. Shingles or tiles are the roof's first line of defense against the sun, the wind, hail, rain and winds. They generally do a good job at protecting the rest of the roof from these elements. They help shed water, directing it down to the gutters. However, even if one shingle is blown off or damaged, it can put the rest of the roof, and the home, at risk for additional damages and expenses.