Double Bubble Reflective Foil Insulation R Value. Double bubble insulation provides the maximum efficiency and highest r value for bubble insulation. Insulation s r value is a measurement how much resistance against conduction. However we see claims of up to r 14 for some bubble products.
Any bubble insulation that is approximately thick can only achieve an average r value of 1 to 1 5 on its own. Any additional r value is achieved by the use of dead air spaces around the reflective product or in used in conjunction with other mass insulation products like fiberglass foam etc.
If the product is simply doubled with no air space between the layers a very minimal benefit is obtained r 1 1 per layer for the reflective double bubble.
Heat moves by 3 methods. Heat moves by 3 methods. If the product is simply doubled with no air space between the layers a very minimal benefit is obtained r 1 1 per layer for the reflective double bubble. Any additional r value is achieved by the use of dead air spaces around the reflective product or in used in conjunction with other mass insulation products like fiberglass foam etc.
