Why Is There Pvc Pipe In My Attic

Even though you may think by looking at the photo that it is vertical.

Why is there pvc pipe in my attic.

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. 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. Pvc coupling or insert a 3 in to 4 in. 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. Has anyone come across this before. Seems that it is an inherent to the nature of pvc itself. The pipe is parallel to the ground.

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. On the roof these are covered with lead flashing to prevent water from getting inside the house. The gray stuff is blown insulation. Anyways i ve put some epoxy leak fixer around the joint and i imagine that will fix the problem.

I have been doing a lot of. Then either glue in a proper 3 in to 4 in. I always recommend to my clients to consider insulating these lines as an energy conserving addition to the system. I have this pvc pipe in my attic that is leaking at this joint in the photo.

Looks like other variants cpvc have higher temps but i don t believe there are any nec listed products. The second pvc pipe right next to the first leaves the unit and exits the house wall high up near the eave. 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. It leaves the unit and exits the house exterior wall low down on the ground.

One i m pretty sure is for condensation drainage for when running the air conditioning system. 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. It appears to be a plumbing vent intended to exit the roof but is capped. 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.