Contrary to popular belief, the roofing system isn’t actually just one structure. Rather, it’s made up of several components that all play separate roles in the overall performance of the roof. The shingles are just one of these parts, and there’s a lot more to your roof underneath it.
In this post, BDM Construction Inc. discusses these parts and more below.
The shingles are the main exterior surface of the roof and the most visible part of the entire structure. The most common material for shingles are either wood shake or asphalt; for metal roofing, these are instead called sheets although their purpose is the same. For flat roofing, roofing membranes are used instead of shingles.
As its name suggests, this is the part of the roof that’s lies underneath the shingles. Its main role is to act as a secondary waterproofing barrier in the event the shingles get punctured. The most common material for underlayment is felt, which is saturated in asphalt to increase its durability and water tolerance.
Also known as the wood sheathing, this is the base or foundation that every part of the roof is installed on. It’s usually attached with nails to the rafters. The actual material for this varies; generally, this is either oriented strand board or plywood. Other materials are also used as decking. Flat roofing, for example, usually has a concrete or metal decking due to its unique shape and structural requirements.
Also known as the “drip edge”, these are aluminum strips nailed into place over the underlayment, usually at the sides of the roof at the edge, hence the name. Its main purpose is to prevent water from building up on the surface of the roof that can damage it over time, guiding it over the eaves and into the roof’s gutters.
As your local home remodeler, we’ll be happy to help you with all your roofing needs. Call us today at (423) 200-4646 to learn more about our services. We offer complete roofing services throughout Kingsport and Elizabeth, TN.