PVC piping is an excellent material to use for venting your bathroom fan as long as the correct type of pipe is used. PVC creates a better seal than metal, so you won’t experience any problems with leakage as you could with using metal ducting pipes.
What kind of pipe do you use for a bathroom fan?
foam core PVC pipe
I’d seriously consider using foam core PVC pipe as the vent pipe for your fan. The fittings can be glued, and any water that might form in the pipe will never leak onto your ceiling or down a wall.
Can I use PVC for venting?
While using PVC for some venting applications is acceptable, you should not use PVC to vent a dryer. PVC has a maximum temperature rating of 140 degrees. Dryer exhaust output can range from 130 to 165 degrees. PVC can buildup a static charge that can ignite lint buildup and cause a fire.
What size duct do I need for bathroom exhaust fan?
When sizing a vent fan, a factor to consider is duct size and length. Most 50 CFM fans will run well with 4-inch round duct. But as you get up into the higher CFM fans, duct size will have to be increased to 5- or 6-inch round duct.
What is the proper way to vent a bathroom exhaust fan?
The fan exhaust must vent directly to the exterior of the home. Do not put the vent termination in a roof overhang or soffit. Don’t put it on a wall near or under a roof overhang. The moist air that’s belched out by the fan can be sucked right up into the open soffit vents and be drawn into your attic.
What type of PVC is used for venting?
PVC schedule 40 pipes
Despite the confusion, the safe practice would suggest the use of PVC schedule 40 pipes for the air intake vent on the furnace and CPVC for the exhaust flue vent, given its higher service temperature.
Is PVC an acceptable vent material for flue gases?
A standard will be needed for plastic flue pipes that should include a temperature gauge and a high limit probe. Then PVC, CPVC and polypropylene flue gas piping can be safely used on high efficiency boilers and water heaters. This would be an answer to the dilemma of cost versus safety.
Can I use PVC for bathroom exhaust fan?
PVC piping is an excellent material to use for venting your bathroom fan as long as the correct type of pipe is used. PVC creates a better seal than metal, so you won’t experience any problems with leakage as you could with using metal ducting pipes.
How long can a bathroom fan vent pipe be?
Generally a 4 inch flex duct can carry a fan exhaust for up to 25 ft. Most codes require that.
Is it OK to vent a bathroom fan through the soffit?
A bathroom fan can be vented through soffit so that the warm air from the bathroom comes out through it and goes outside. However, It is important to keep in mind it can not be vented into the soffit, as this will lead moisture back into the attic.
Can you use cellular core PVC for venting?
DO NOT use Cellular Core PVC/CPVC or Radel for venting exhaust. Use of these materials for exhaust may result in property damage, personal injury, or death.
What is CPVC vs PVC?
What are the differences between CPVC and PVC? The main difference between CPVC and PVC is the range of temperatures each is capable of withstanding. CPVC can handle temperatures up to 200° Fahrenheit, while PVC peaks at 140° Fahrenheit.
What is a Schedule 40 PVC pipe?
PVC Schedule 40 pipe is used for drainage and lower pressure water flow applications. Schedule 40 PVC pipe can handle up to 140 degrees F in temperature. Pipe lengths come in standard 10′ or 20′ sections. PVC schedule 40 pipe is available in plain end or belled end that do not require coupling for installation.
What is the difference between white and GREY PVC?
PVC pipe that is used for plumbing is usually white while electrical conduit PVC is usually gray. These are the standard colors, but you can find PVC that has had chemical additives added during the manufacturing process to create different colored pipes.
Which is stronger schedule 40 or 80 PVC pipe?
Both schedule 40 and 80 PVC are used widely around the world. Each one has its benefits in different applications. Schedule 40 pipe has thinner walls, so it is best for applications involving relatively low water pressure. Schedule 80 pipe has thicker walls and is able to withstand higher PSI (pounds per square inch).
How long does PVC 40 last?
PVC (Polyvinyl Chloride): Traditionally, PVC piping only lasts between 25-40 years. However, with recent technological advancements, PVC pipes may be able to last 70 years or more.
Does PVC get brittle with age?
PVC pipes can become brittle and fail with age.
But, PVC is an excellent option for the plumbing in your home.
What causes PVC to crack?
Overpressurization. One of the most common causes of cracking and splitting in PVC pipes is over-pressurization. Each size and grade (or schedule) of PVC pipe is rated to a maximum fluid pressure; for instance, 1-inch schedule 40 PVC pipe is rated to a maximum pressure of 450 pounds per square inch.
