Why Is There Pvc Pipe In My Attic

I always recommend to my clients to consider insulating these lines as an energy conserving addition to the system.

Why is there pvc pipe in my attic.

It appears to be a plumbing vent intended to exit the roof but is capped. The second pvc pipe right next to the first leaves the unit and exits the house wall high up near the eave. Has anyone come across this before. On a slighly different note i m looking at whole house vac system installation as well which also uses schedule 40 pvc or thinner through the attic.

The best way to be sure your pipe vents are clear and pipe boots are functional is to have them inspected regularly by either an experienced roofer or by looking. Even though you may think by looking at the photo that it is vertical. Why would they run the pipe cap it. I have been doing a lot of.

I have this pvc pipe in my attic that is leaking at this joint in the photo. The pipe is parallel to the ground. One i m pretty sure is for condensation drainage for when running the air conditioning system. Seems that it is an inherent to the nature of pvc itself.

It leaves the unit and exits the house exterior wall low down on the ground. The gray stuff is blown insulation. In my house attic i have several 4 inch white pvc vent stacks which are simply white pvc drain pipe extending from the wall headers through the attic and the roof. It looks like the part that extends up on the left is over the master bedroom the horizontal potion passes over the bathroom and the right hand section that extends up is over the kitchen.

Anyways i ve put some epoxy leak fixer around the joint and i imagine that will fix the problem. Then either glue in a proper 3 in to 4 in. There is also the possibility that the vent pipe can become clogged by leaves debris animals ice or snow allowing for the possibility of gases and odors to enter your building. Our plumbing consultants prefer the banded fitting because gluing the large pvc fitting in a tight attic space can be difficult and the solvent fumes in pvc cement can get dangerously intense.

I have two pvc pipes that come out of my attic furnace unit. Wasn t sure where to post this thread so it seemed what i was looking at was a capped pvc pipe in the attic on a newer constructed house 7 yo so plumbing seemed appropriate. On the roof these are covered with lead flashing to prevent water from getting inside the house. Looks like other variants cpvc have higher temps but i don t believe there are any nec listed products.