R Tech Insulation R Value
Foamular 250 2 in.
R tech insulation r value. R5 radiant acoustic insulation kit stc 19 5 piece. In comparison an inch of blown fiberglass insulation has an r value of 3 1 3 4 and an inch of blown cellulose in an attic has an r value of 3 2 3 7. Yes although polyisocyanurate foam board would deliver r 6 5 per inch vs r 3 85 for this r tech product. This versatile rigid foam board can be used for new and retrofit roofing exterior interior cavity walls siding underlayment insulating sheathing continuous insulation sheathing weatherproofing protection barrier below grade under slab crawl space perimeter insulation drainage board and radiant heated floors.
For example a wall with 3 fiberglass batting r value of 10 8. R tech is available with factory adhered metallic reflective facers white facers or a combination of the two. R 10 scored squared edge insulation sheathing. For example if you have a type of insulation that has an r value of r 5 per inch of thickness you will need a depth of 6 inches of this insulation installed in your attic to reach r 30 if you live in zones 2 or 3.
R tech is a top to bottom do it all insulation. Dow super tuff r model 268417 home depot internet 100576728 upc code 041343001323 store sku 296960 you will also need to cover the foam board with 1 2 drywall because foam board is flammable and a thermal barrier is required in all garages living spaces. These r values are a sum meaning this should be the total r value once you add up the entire depth of insulation. R 7 7 rigid foam insulation.