Higher numbers indicate insulation that is more effective.
													
																	R13 attic insulation. 
									
	
		
	
																	Achieving greater r values in attics the higher the r value the better the thermal performance of the insulation. 
																	The label on insulation gives its r value. 
																	10 bags model c86 view the owens corning 2x4 wall floor insulation. 
																	Standard fiberglass insulation batts or blankets provide an r value of 2 2 to 3 8 per inch of thickness. 
															
													
									
	
		
	
																	The table below shows what levels of insulation are cost effective for different climates and locations in the home. 
																	Thermal values range from a low of r 4 to a high of r 45. 
																	R value is a measure of insulation s ability to resist heat traveling through it. 
																	Most manufacturers produce an r 13 batt that fits into a 2 by 4. 
															
													
									
	
		
	
																	The r value of insulation indicates its thermal resistance to the flow of heat. 
																	Owens corning ecotouch r 15 30 sq ft single faced fiberglass roll insulation 15 in w x 24 ft l item 821444. 
																	Owens corning r 13 ecotouch pink kraft faced insulation fiberglass insulation batt 16 in. 
																	The higher the r value the better the thermal performance of the insulation. 
															
													
									
	
		
	
																	Insulation level are specified by r value. 
																	For pricing and availability.