Built-up roofing (BUR) systems are one of the most popular choices for commercial roofing. They are durable, long-lasting, and easy to maintain. BUR systems are composed of multiple layers of asphalt-impregnated felt or fiberglass mats that are laminated together with heat-applied asphalt. A gravel or mineral-surfaced cap sheet is then installed over the top layer.
BUR systems are designed to withstand extreme weather conditions and are resistant to fire, wind, and hail. They are also one of the most economical roofing options for commercial properties.
If you are considering a commercial roofing system for your property, be sure to consult with a licensed roofing contractor to discuss your options.
What Are The Benefits Of Built-up Roofing For Commercial Properties?
commercial properties can benefit from built-up roofing in many ways. For one, built-up roofing is very durable and can last for decades with proper maintenance. Built-up roofing is also low-maintenance, which is ideal for commercial property owners who want to avoid costly repairs. Additionally, built-up roofing is fire-resistant and can help protect a commercial property from damage in the event of a fire. Finally, built-up roofing is environmentally friendly and can help a commercial property save money on energy costs.
What Are The Key Components Of A Built-up Roofing System?
A built-up roofing system is composed of multiple layers of asphalt, tar, or other bituminous materials, which are then topped with a layer of gravel, stone, or slag. This type of roofing is often used on commercial and industrial buildings because it is very durable and can last for many years. The key components of a built-up roofing system are the base sheets, interply sheets, and the top surfacing.
The base sheets are the first layer of the roofing system and are typically made of asphalt-saturated felt or fiberglass mat. The interply sheets are the second layer and are also made of asphalt-saturated felt or fiberglass mat. These sheets are then covered with a layer of bitumen, which is a type of asphalt. The top surfacing is the last layer of the roofing system and is typically made of gravel, stone, or slag. This layer protects the underlying layers from UV rays and weather damage.
How Is Built-up Roofing Installed?
Built-up roofing (BUR) systems are one of the most popular types of commercial roofing. They are composed of multiple layers of asphalt and reinforcing fabrics that are hot-mopped or cold-applied to the roof deck. Built-up roofs are very durable, long-lasting, and have a good track record of performance in a wide range of climates.
There are two methods for installing built-up roofs: the hot-mopping method and the cold-applied method.
The hot-mopping method involves heating the asphalt to a liquid state and then mopping it onto the roof deck. The reinforcing fabrics are then embedded into the hot asphalt. This method is typically used for roofs with a slope of 3:12 or greater.
The cold-applied method involves applying the asphalt and reinforcing fabrics to the roof deck without heating the asphalt. This method can be used for roof slopes as low as 1:12.
Here is a step-by-step explanation of the hot-mopping method:
1. The roof deck is cleaned and prepped.
2. A layer of asphalt is applied to the roof deck.
3. The first layer of reinforcing fabric is laid down.
4. A second layer of asphalt is applied.
5. The second layer of reinforcing fabric is laid down.
6. A third layer of asphalt is applied.
7. The roof is finished with a layer of gravel or another type of protective material.
The cold-applied method is similar, but the asphalt is not heated. The asphalt and reinforcing fabrics are simply applied to the roof deck.
Both the hot-mopping and cold-applied methods can be used to create a built-up roof that is durable, long-lasting, and resistant to a wide range of weather conditions.
What Are The Common Problems Associated With Built-up Roofing?
One of the most common problems with built-up roofing is ponding water. Ponding water is when water sits on the roof for more than 48 hours. This can cause the roofing materials to deteriorate and can also lead to leaks. Another common problem is that the gravel or stones that are used on the roof can become loose and fall off, which can damage the roof and also be a safety hazard.
Hopefully, you are now clear on Built-Up Roofing (BUR) for Commercial Properties. If you still have any questions, please feel free to comment below.