7 Best Of How To Install Double Bubble Foil Insulation Free Download. An easy-to-install double reflective double bubble insulation R-values range from R-37 to R-21 depending on the applications. Double Bubble Duct Insulation R-60.
It will help to retain radiant energy and heat in the shed aswell as working as a vapour control layer. Very few people are as familiar with radiant barrier foil insulation and how it works. There is no contained air gap inside the foil and the air gap outside the foil is fairly leaky I dont think that there will be much benefit from the insulation value of the bubble wrap.
If you dont provide air space this product provides almost no insulating value.
It keeps heat out in hot summer months and keeps heat in during winter months when you are paying to heat the building. The rubber meets the road on Reflectixs website where it says No Air Space No Reflective Insulation Benefit. Double Bubble FoilFoil Reflective Insulation is 14. An R-11 is provided from the product itself for the ReflectiveDouble Bubble material.