The r value of a 1 3 4 inch wood door is 3 03.
													
																	R value wood garage door. 
									
	
		
	
																	Another thing that effecting the r value is the material of the insulation. 
																	Know exactly how much you need with our project calculators. 
																	There are mainly 2 materials for insulating garage doors polystyrene and polyurethane. 
																	We have several door styles to meet your insulated door needs for both residential and commercial applications. 
															
													
									
	
		
	
																	See chart for r value comparisons. 
																	A value of r 16 offers a 5 reduction in heat flow and a 5 improvement in energy efficiency over an r value of 8. 
																	R value of garage door insulation what is r value. 
																	An r value of 16 is not twice as good as an r value of 8. 
															
													
									
	
		
	
																	R value measures how well certain building insulation materials can resist heat. 
																	When determining how much insulation you need don t guesstimate calculate. 
																	Higher is better when looking at garage door r values but it s not the only factor to consider. 
																	If your garage is not detached then the garage is probably insulated and you ll want a garage door with an r 12 value. 
															
													
									
	
		
	
																	In general a higher r value means better insulation but there s more to it than that. 
																	That s particularly true if you have a heating system in the garage. 
																	The higher the r value the greater the insulation performance. 
																	Today s garage doors with polyurethane insulation will have an r value of 12 18 garaga s residential garage doors provide up to r 18 but you also want to choose a door that has otherwise good construction. 
															
													
									
	
		
	
																	Attached but not actively heated or cooled garages should have a garage door with an r value between r 6 and r 9. 
																	Actively cooled or heated garages should have a garage door with an r value of r 13 or higher to save on energy costs. 
																	However you also need to analyze the door s cold resistance before making a purchase decision. 
																	1 3 8 and the other model is 2. 
															
													
									
	
		
	
																	The higher the r value the greater the insulating properties of the door. 
																	If it s not insulated then an r 6 value will do. 
																	Between 9 18 4 the difference between the r values is caused by the thickness of the doors 1 model is. 
																	A garage door s r value represents its ability to slow the transmission of heat. 
															
													
									
	
		
	
																	A higher r value means a slower transmission of heat which means less cold air leaking into your garage in the winter and less heat invading your garage in the summer. 
																	R value is a measure of thermal efficiency. 
																	It does not offer twice as much thermal resistance or twice the energy savings. 
																	A value of r 16 offers a 5 reduction in heat flow and a 5 improvement in energy efficiency over a value of r 8. 
															
													
									
	
		
	
																	When it comes to r values for garage doors the higher the better. 
																	A 2 1 4 inch solid core wooden door for example has an r value of 3 70. 
																	What r value should you look for in a new garage door.