Batt and roll insulation.
													
																	Types of insulation and their r values. 
									
	
		
	
																	Blown cellulose carries an insulation r value of 3 7 and fiberglass holds an r value of 3 14. 
																	The table below shows what levels of insulation are cost effective for different climates and. 
																	R value is a measure of insulation s ability to resist heat traveling through it. 
																	The higher the r value the better the thermal performance of the insulation. 
															
													
									
	
		
	
																	Here are the installation methods from lowest to highest average r value per inch. 
																	Homeowners can install. 
																	The maximum thermal performance or r value of insulation is very dependent on proper installation. 
																	Recommended home insulation r values. 
															
													
									
	
		
	
																	Foam board or rigid foam. 
																	R value is a measurement of thermal resistance and measures the ability of heat to transfer from one side of an object to another. 
																	Fiberglass batts for standard 2 4 walls are now available in low medium and high density products that range from r 11 to r 15. 
																	Insulation level are specified by r value. 
															
													
									
	
		
	
																	Common insulating materials and forms. 
																	There are a number of different materials such as fiberglass and cellulose as well as a number of different forms such as batting and blown in. 
																	Insulation blankets batts and rolls spray foam insulation. 
																	The common denominator among varieties of insulation is the r value. 
															
													
									
	
		
	
																	In simple terms r values measure the effectiveness of insulation and a higher number represents more effective insulation. 
																	Blown in or loose fill insulation.