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How Much Does A New Roof Cost?
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  • Factor 8: Is your roof busy? What I mean by this is, does your roof have a lot of “stuff” on it? Having to roof around skylights, air conditioners, pipes, exhaust fans, etc. will add a little to the cost of the roof because it requires additional labor and materials.
  • Factor 9: Is your roof cut-up? Are there a lot of hips and valleys? Are there dormers? Roofing a bunch of hips, valleys, and dormers adds to roof cost.
  • Factor 10: What type of roof deck do you have? You know what a roof deck is. It’s the structural element your roof is installed over. For most residential homes, it’s plywood or OSB and pretty straight forward. For commercial roofing, deck types are steel, concrete, light weight insulating concrete, gypsum, cement fiber, and probably a few others I can’t think of right now. Varying deck types create varying roof costs.
  • Factor 11: How tall is the building? If the building is two stories, there’s typically not much change in roof price from that of a one-story building. But the higher you go from there, the more the cost goes up because you have to have special equipment and added labor to get the material up on the roof.
  • Factor 12: How accessible is the roof? If a roofer can back up into your driveway with a truck, tear off the roof and throw the materials into the truck, and also load the roof with new materials from the driveway, it’s called good access. But, there are some buildings or homes that don’t have good access, and the roofing materials have to be torn off and carried over to a dumpster, truck, or trailer. This is commonly referred to as “double-handling” the material, and it will drive the cost of a new roof up. I’ve had to triple handle material from time to time where you tear off a roof, raise it up to a different roof level, carry it over to the edge of the roof, then throw it off and carry it to a dumpster. It greatly slows down the roofing process.
  • Factor 13: Are there parapet walls? Many commercial roofs, and a lot of flat residential roofs, have parapet walls, which are a raised wall at the perimeter of the roof, and can be anywhere from one foot to 15’ high or so. Many of these walls require some type of roofing material to be installed on them, thereby adding labor and material to the job, and costing more than if the roof edge were just flat.
  • Factor 14: Is there a lot of landscaping around the building? No building owner wants their flowers or bushes messed up, so roofers often have to take extra precautions protect plants around a building. This is often a minor cost, depending on how much landscaping there is, and often isn’t even an add to the roof price. Roofers just consider it part of doing business.
  • Factor 15: Where is the building located geographically? Roofs in New York City are going to cost more than roofs in Wichita, KS.

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