Air Conditioning Ducts In Attic

The air ducts for a central hvac systems are typically located above a home in the attic or upper crawl space or underneath a home in the space between the foundation and the floor so you don t see them unless you have cause to replace them.

Air conditioning ducts in attic.

Put it in an attic full of blown insulation and you re forcing. Choosing the right ductwork for installing in your attic as with home architecture and decor there are trends in the hvac world. The condenser in your air conditioner works hard to get rid of heat and pressurize refrigerant for the return trip through your house. For example ducts fall into two types.

When air cannot circulate freely throughout your. When the hot humid attic air contacts the cold duct or the cold duct boot the moisture in the air condenses on the cold surface just like the condensation that happens on a cold can of beer. The passive vents probably reduced that negative effect by allowing more air to flow from the the outdoors but it s still almost always better from an energy use point of view to not use turbine vents or powered attic vents of any significant size. If you have insulated air ducts and the insulation gets wet or moldy it cannot be effectively cleaned and should be removed and replaced.

The air in your vented attic is hot and humid just like all outdoor air in florida. Improperly supported flex ducts will sag which cuts down on airflow meaning cool air generated by an ac unit will struggle to reach your in law suite. If ducts are located in a crawlspace underneath your house cover the soil to reduce moisture. Leaky seals in unconditioned vented attics can effectively turn an efficient 15 seer unit into a 12 meaning it s much less efficient.

Iii special trusses that create space below the unconditioned attic. Keep ducts spaced apart so air can flow between them. I lowered soffits around room perimeters. Ducts are infested with vermin e g.

Ii lowered ceilings in hallways. Find hvac duct fittings at lowe s today. In it the authors argue that attic ducts kill home efficiency they say that studies show a 20 percent energy use increase for homes with attic ducted units. Again i d suggest calling an experienced hvac pro to guarantee your ducts are installed in your attic with proper support.

You can install insulation on the attic side of the register boot and you can make sure that your duct is adequately insulated. Turbine vents usually depressurize the attic sufficiently to pull conditioned air up through the air leaky ceiling into the attic which increases the cooling energy use. If you have central heating and or air conditioning in your home the warm or cool air is delivered to each room through a system of connected ducts and vents. Unblock any ducts that are restricting air flow and have them cleaned regularly.

If they are located in your attic be sure the area is properly insulated and any cracks or holes are sealed. If the conditions causing the mold growth in the first place are not corrected mold growth will recur. Hard ducts and flexible ducts. Iv conditioned attic and more.