Question

a rain screen has all of the following except
o building paper or housewrap
o an air space behind the siding
o an air/vapor barrier directly behind the siding
o a drainage space behind the siding
o an escape route for moisture at the bottom of the wall
question 43
vines on exterior walls
o are a bigger problem on wood siding than masonry
o help the wall keep dry
o help keep pests away from the building
o help the inspector in that their presence indicates a durable wall
o can always be easily removed

Explanation:

1. A rain - screen typically has building paper or housewrap, an air space/drainage space behind the siding, and an escape route for moisture at the bottom of the wall. It does not necessarily have an air/vapor barrier directly behind the siding.
2. Vines on exterior walls can cause more damage to wood siding due to moisture retention and root penetration compared to masonry. They do not help the wall keep dry, attract pests, and their presence does not indicate a durable wall. Also, they are not always easily removed.

Answer:

1. C. an air/vapor barrier directly behind the siding
2. A. are a bigger problem on wood siding than masonry