Insulation Flashcards
1
Q
What are typical R values for floor, walls, attic space?
A
Attic: R-25-40
Walls: R12-R20
Floors over unheated spaces: R20-R30
2
Q
What Direction does thermal energy flow?
A
High energy to low energy
3
Q
What does an air barrier do?
A
It prevents or restricts air leakage
4
Q
What is a vapor barrier?
A
It’s designed to restrict the movement of water vapor and restricts both vapor diffusion and air leakage
5
Q
A
