5: Thermal Insulation

Question 1

Roof Insulation 3 benefits other than reducing energy costs?

Answer 1

1. prevent condensation on interior surfaces
2. provides substrate for membrane over steel decks
3. stabilizes deck components by reducing their temps variations and consequent expansion/contraction

Question 2

Conventional roof system - where is the insulation?

Answer 2

membrane is on top of insulation

Question 3

4 types of roof insulation for low slope?

Answer 3

1. Rigid insulation
2. dual purpose structural deck/insulating planks
3. Poured-in-place concrete
4. Sprayed-in-place plastic foam

Question 4

What is used to level out the lightweight concrete on a roof?

Answer 4

steel-framed screed

Question 5

What is the R-Value of Lightweight Concrete?

Answer 5

1.5