Image Of Crawl Space Air Duct Going Up Through Floor

Dryer in an interior room with duct angling up through attic to roof.

Image of crawl space air duct going up through floor. One look at a crawl space may have you wondering why you should bother cleaning it. Pvc duct pipe is rated to handle temperatures up to 140 degrees f. Not only that they didn t fill all the gaps. Dryer on slab on grade with duct going straight out back or up and out.

To ventilate a crawl space you have to install a vent to pump in air from your hvac system as well as an exhaust fan to move air from the crawl space and walls to the outside. Air moves through them. Anchor the drainpipe with straps. The current owners had the wood stove running and the upstairs windows open and there was a clear draw of air coming up through the vent registers from the crawl space.

The downstairs floor also felt very cold. The pipe is made with lightweight thin wall pvc and makes large jobs labor friendly because of its weight. Cut a smaller opening in the ceiling for the vent pipe. For a 1 1 2 inch vent pipe a 2 1 2 inch hole is sufficient.

But without proper support ducts can develops sags or kinks that reduce airflow 4a 4b. Standard duct tape can heat up and fail over time so get the good stuff. Below is a straightforward guide to help you understand the do s and don ts of crawl space cleaning so you can get the job done safely. Pvc thin wall duct pipe is used for air exhaust applications.

It s possible see image 2 below but hard. Finally caulk around the opening where the pipe vents to the outside to prevent any cool air from sneaking in. Unfortunately it has a damp and air leaky crawl space below it. Dryer on basement floor with duct running up block wall and out rim joist.

How to hook up a dryer figure c. To prevent problems use saddles or straps to support at regular intervals 4c 4d follow the manufacturer s instructions but in case they get lost here is a list of best practices for. Insulating and particularly air sealing at the floor level of a crawl space is a very difficult proposition. Vent out the roof.

And then sending that bad air right into the home for the. Every time this system runs in addition to pulling air from the house back to the furnace or air conditioner to be heated or cooled it s also pulling a lot of air from the nasty yucky crawl space below the floor. Sometimes the best route for a flexible duct run is up and over an obstruction. A beginner s guide to cleaning your crawl space.

Attach the insulation with a high quality reinforced foil duct tape. Guide the vent pipe up through the hole and into the attic or room above and slip its lower end into the fitting at the floor. Wrap everything including any pliable sections near the dryer and secure it with the tape. Monitoring any crawl space either through sensors or regular routine visual inspections is always a good idea.