Spray foam insulation costs between 0 25 and 1 50 per board foot or 1 36 to 2 63 per square foot depending on the type.
													
																	Spray foam roofing cost per square foot. 
									
	
		
	
																	Most homeowners spend 1 463 to 2 926 for professional spray foam installation with prices ranging from 627 to 8 000 depending on what needs insulating. 
																	Although there are reasons that a building will need a thicker layer the most common reason is for energy efficiencies. 
																	The reason is that setup costs are going to be very similar whether you have a 2 000 sq. 
																	The thicker you make the foam layer the high r value your roof will have. 
															
													
									
	
		
	
																	The larger the roof s surface area the more costly the installation of the roof. 
																	Roof or a 100 000 sq. 
																	While a spray foam recoat will generally be in the 2 3 per square foot range the size of your roof can determine if your recoat is going to be closer to 2 or 3. 
																	On average it costs 1 65 2 25 per square foot for materials and labor on a typical spf roofing system which is a 1 5in layer of foam. 
															
													
									
	
		
	
																	Actual costs will depend on job size conditions and options. 
																	3 to 12 per sq ft foam roofing cost according to right way roofing. 
																	The necessary materials and equipment for a spray foam roof average 2 per square foot meaning it will cost 2 400 in materials for a 1 200 square foot home. 
																	The thickness of the spray foam and the number of layers applied also play a factor in the cost.