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Two Roofing Methods For Flat Roofs

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Have a flat roof in need of replacement? If so, you will need to decide on the kind of roofing method that you use to do it. There are two popular methods that you should consider, which will work great for either commercial or residential roofs.

Built-Up Method

A built-up roof is an old method for covering roofs that are flat. As the name would suggest, the roofing method will use several layers of roofing material that are installed on top of each other. Every layer of roofing material has two elements, which includes asphalt tar and the underlayment material made of roofing paper.

Roofing paper use a felt sheet that is made with asphalt. The paper is durable and tough due to the ability to resist water, which makes it a great choice to protect your roof deck. Once asphalt tar is applied to the underlayment layer, it will be even more resistant against water. Fine crushed gravel or rock is then applied on top of this material, which gives it additional protection from the weather.

A built-up roof will have several layers of both asphalt tar and roofing paper, which is very time-consuming to install. This can cause the cost of a professional installation to be more expensive than other roofing methods. However, you may find that this method causes the roof to last longer before it needs repair or replacement, which can save you money in the end.

Rubber Membrane Method

A rubber membrane roof will have only one layer of roofing material, which is its biggest advantage over other roofing methods by reducing the cost of manual labor to have it installed. The rubber is usually made out of PVC, neoprene, polyethylene, bitumen, or EPDM (ethylene propylene diene monomer).

Attaching the rubber to the roof can be done in several ways. The roofing material can be weighed down using a rock layer if the roof can handle a lot of weight. Rubber roofing can also be fastened to a roof, but this requires making holes in the material that can be a potential leak later on. This is why it is common to use an adhesive to attach the roofing material, since no holes are made in the rubber in the process.

For more information about roofing methods for your home or business, reach out to a local roofing contractor, such as Stevens Roofing Corporation, for assistance with selection and installation.