Question

1. what would you report here?

image of a roof vent stack with white material at the top
○ there is mold in the vent stack
○ there is frost closure at the vent stack
○ there are soap suds in the vent stack
○ the vent stack extends too high above the roof surface
○ the vent stack flashing as defective

1. what is wrong with this drain

Explanation:

Looking at the vent stack in the image, the white substance appears to be frost, which can cause closure of the vent. Mold would have a different appearance, soap suds are unlikely here, the height doesn't seem excessive, and the flashing doesn't look defective. So the correct option is about frost closure.

Answer:

B. There is frost closure at the vent stack