The approximate R-value of an air space in a wall with an aluminum foil lining is
a. R-1.
b. R-1.5.
c. R-2.0.
d. R-2.5.
e. none of the above.
We need at least 10 more requests to produce the solution.
0 / 10 have requested this problem solution
The more requests, the faster the answer.