Your Ducts Moves And Insulates
The Air That Cools Your Home …
Any Leakage Is Significant!
In houses with forced-air heating and cooling systems, ducts are used to distribute conditioned air throughout the house. In a typical house, however, about 20 percent of the air that moves through the duct system is lost due to leaks, holes, and poorly connected ducts. The result is higher utility bills and difficulty keeping the house comfortable, no matter how the thermostat is set.
How do you know that your home has poorly performing ducts?
- you have high summer and winter utility bills;
- you have rooms that are difficult to heat and cool;
- you have stuffy rooms that never seem to feel comfortable;
- your ducts are located in an attic, crawlspace, or the garage;
- you find tangled or kinked flexible ducts in your system.
Because ducts are often concealed in walls, ceiling, attics, and basements, repairing them can be difficult. But there are things that you can do to improve duct performance in your house.
Your A/C Contractor Should Check Your Duct Work
During Your Annual Inspection!
Some homeowners choose to take on duct sealing as a do-it-yourself project. Start by sealing air leaks using mastic sealant and/or metal tape and insulating all the ducts that you can access (such as those in attics, crawlspaces, unfinished basements, and garages). Never use duct tape, as it is not long-lasting. Also, make sure that the connections at vents and registers are well-sealed where they meet the floors, walls, and ceiling. These are common locations to find leaks and disconnected ductwork.
Many homeowners choose to hire a professional air conditioning contractor for duct improvement projects. Most heating and cooling contractors also repair ductwork. Look for a contractor who will:
- Inspect the whole duct system, including the attic, basement, and crawl space (if you have these).
- Repair or replace damaged, disconnected, or undersized ducts and straighten out flexible ducts that are tangled or crushed.
- Evaluate the system’s supply and return air balance. Many systems have air return ducts that are too small.
- Seal leaks and connections with mastic, metal tape, or an aerosol-based sealant.
- Seal gaps behind registers and grills where the duct meets the floor, wall, or ceiling.
- Insulate ducts in unconditioned areas with insulation that carries an R-value of 6 or higher.
- Include a new filter as part of any duct system improvement.
- Use diagnostic tools to evaluate air flow after repairs are completed.
- Ensure there is no back drafting of gas or oil-burning appliances, and conduct a combustion safety test after ducts are sealed.
Haven’t had your duct work checked in a while?
We Are Here To Help!
Call Community Cooling and Heating