Duct Noise Under Floor

Sagging or bent flex ducts.

Duct noise under floor.

If your floors squeak only when you walk across them and sounds like an oil can a metal flexing sound you probably have an hvac duct that is deflecting when the floor moves. Walk around the house and listen closely for the source of the noises. There aren t enough obstacles inside the duct that the sound could bounce off of so the noise isn t getting disrupted. Turn up the furnace s thermostat to activate it in the heating mode.

Anyways the heat duct runs under my bedroom floor the livingroom and my mother s bedroom which is on the other end of the house. How much popping noise you hear depends on 1 or more of these 4 factors. One closed damper probably won t make much difference but closing several dampers at once might. Hot air makes your ductwork expand.

When i move it sounds like the heat duct thumps and bangs. Unlike the previous point this one is pretty easy to solve as you ll see later on in this article. As ducts age the sealing fails and duct connections wiggle loose from the static pressure. How to fix creaking heat vents step 1.

Turn off the home s televisions radios computers dishwashers and anything else that makes noise. Floors pop oil can noise. Popping and banging sounds are caused by the movement of duct walls due to temperature changes. A loud booming sound is common at the connection of the duct trunk and plenum.

3 measure for a piece of 1 inch wide sheet metal duct. If the noise is in the first floor and you have an unfinished basement you should be able to correct the problem relatively easily. 06 02 2008 01 25 pm 2. With me in the chair it probably weighs 400 pounds or so.

If you don t know how to do this contact your local hvac technician. The shape of your ducts. Check the dampers on the supply side of your ductwork and try opening them up one at a time to see if this reduces the popping and banging noises. Wonder what s causing that popping noise in your home s ducts.

Cold air makes it contract. Your ducts gauge rating. Is there a better way to stop these ducts from squeeking under a linoleum floor. Popping and banging sounds are caused by the movement of duct walls due to pressure changes.

Change your air filter. I m a night owl so i stay up late into the night. If the upper edge of a duct are too close to the floor joists to make the wraps install the tape at the three exposed sides of the duct. The air vent is loud because it is not made of particularly absorbent materials.

View profile view forum posts visit homepage view forum threads professional member join date aug 2007 location mn posts 2 686 post likes if you fixed it leave it you could try rubber strapping to hold it up but if you don t. You can also adjust the actuator inside of the duct dampers up or down to reduce the duct noises.