The type of commercial roof you put on your building depends on the slope of your roof and how the roofing material will affect the appearance of your building. You'll want a roofing material that you won't have to spend a lot of time repairing or maintaining. Here are some options for commercial roofing.
For Buildings With A Sloped Roof
If your roof has a slope, asphalt shingles would work, but these shingles don't last as long as other types of roofing, so another choice might be better unless you just prefer the look of the shingles. Roofing materials that work well on sloped roofs include metal and tile.
Metal and slate, clay, or concrete tiles have long lives and are durable. They do cost more than asphalt shingles, but they also last longer and may do a better job in strong winds and storms.
Since sloped roofs are visible from the ground, appearance is important, especially when you have a professional building. Clay barrel tiles might be a good match for a professional office building, while metal might be a good choice for a shop. Elegant slate could be a good option for an upscale restaurant.
For Flat Roofs
Flat roofs have special needs since rain can form puddles on the roof and increase the risk of leaking. Commercial roofing for flat roofs includes built-up roofing, spray foam, and membrane roofs. Spray foam is a good option for many types of commercial buildings with flat roofs. The roofing material is sprayed on so it's possible to create a roof that is a single piece of material with no seams. The foam can also be sprayed in different amounts so a slight slope is made that causes rain to roll to the side of the building and drain away.
Membranes are also good roofing materials since they provide sheets of waterproof roofing that block the rain. The membrane sheets have to be sealed to keep rain from rolling under the roofing, and some are covered in gravel for protection and to hold them down. The membranes are available in different materials and thicknesses so that the right roofing can be chosen for your needs.
Built-up roofing is more labor-intensive to apply and is being used less often now that good alternatives such as membrane and foam roofing are available. Built-up roofing is made of layers of roofing fabric and asphalt so there is a sealed layer of protection against rain on the roof. Built-up roofing is then topped with gravel that protects the roof underneath from UV rays and foot traffic.
To learn more, contact a commercial roofing contractor.