A new roof installation is a big investment, regardless the type of the roof. However, commercial roofs are typically less expensive than residential roof, because their shape is simple and the materials typically consist in different membranes that are cheaper than tiles or shingles.
However, the cost remains one of the biggest concerns for residential building owners.
There are a few factors that influence commercial roofing Denver CO installation costs:
- The size of the commercial roof (the cost effectiveness starts to show if the roof is larger than20,000 sq feet )
- The transportation of the materials (this operation takes up to 3% of the project costs)
The condition of the existing roof (there are costs for cleaning and preparing the existing roof, as well as to stripping and removing it).
- Distances and height of the roof
These factors influence the access on the roof, so they also affect the price.
- The type of materials you opt for
There are a few common types of flat roof materials: Thermoplastic polyolefin membranes, EPDM rubber membranes, PVC membranes and metal retrofit roofing.
Typical cost for single-ply flat roof installation ranges from $3 to $5/ sq. foot, while typical cost for built-up bituminous roof installation ranges from $3.50 to $6.50 / sq.foot.