The r value depends on the type of insulation its thickness and its density.
													
																	Why higher r value in an attic. 
									
	
		
	
																	Insulation level are specified by r value. 
																	R value is a measure of insulation s ability to resist heat traveling through it. 
																	You can achieve better thermal performance in your attic by adding an additional layer of insulation. 
																	Recommended home insulation r values. 
															
													
									
	
		
	
																	Almost all insulation products have to tell you their r value pipe and duct insulation are the only exceptions. 
																	The higher the r value the better the thermal performance of the insulation. 
																	You will need a higher r value of insulation if you live in the northeast than if you live in southern california. 
																	The higher the r value the better the thermal performance of the insulation. 
															
													
									
	
		
	
																	An insulating material s resistance to conductive heat flow is measured or rated in terms of its thermal resistance or r value the higher the r value the greater the insulating effectiveness. 
																	Duct wrap is covered so if you re looking at insulation with an r value of 38 from company a and insulation with an r value of 38 from company b you ll know the. 
																	The higher the r value the greater the insulating power. 
																	The higher the r value the better the thermal performance of the insulation. 
															
													
									
	
		
	
																	Achieving greater r values in exterior walls. 
																	There are many ways to retrofit a home with fiberglass and. 
																	Your home s age if your home is more than 10 year old you likely need more insulation.