Table of Contents
Is duct board still used?
Basically, the fiberglass absorbs moisture and provides a breeding ground for mold spores. Therefore, duct board should only be used where it will not be exposed to damp conditions. Both systems have been used for years and, when installed appropriately, will give good service.
Can I use foam board for ductwork?
Rigid foam board ducts can be installed during new home construction or a remodeling project. You can build ducts from rigid foam board to serve as the distribution system to circulate heated or cooled air in your house.
How much does Ductboard cost?
x 120 in. Duct Board – R-6 DBOARD1 – The Home Depot.Compare Similar Plenums & Air Returns. current product Best Seller $5198 $17800 (1) (7) (18).
What are duct boards?
A duct board is a common form of heating and air conditioning insulation made out of fiberglass and a thin layer of foil. Each board typically is 1 to 2 inches (2.54 to 5.08 cm) thick, and several boards can be assembled together to help airflow and maintain temperature.
How long is a sheet of duct board?
Duct board – 4 foot X 10 foot sheet – R4 (1″) / R6 (1.5″) / R8 (2″).
What is the R-value of duct board?
The 1-inch fibrous glass duct board has an R-value at 75°F of 4.3 h•ft2•°F/Btu. The 1½-inch board has an R-value of 6.5.
What is the thickness of duct board?
The 11/2” (38mm) and 2” (51mm) thickness provides superior thermal value. Mean temperature is the average of two temperatures: that of the air inside the duct and that of the ambient air outside it. Note: Specified design thickness should be adequate to prevent exterior surface condensation.
What size is duct board?
Maximum unreinforced duct size covered by this Standard is 36” (900mm) for 475 and 800 EI board and 42” (1050mm) for 1400 EI board. For fabrication of rectangular ducts of larger sizes or for operation at greater static pressures, refer to NAIMA Publication AH116, Fibrous Glass Duct Construction Standard.
How long does duct board last?
Question: How long does duct board last? Answer: Well, duct board doesn’t last that long. However, it still has a shelf life of 10 years. Furthermore, it can last for more than 15 years, if it’s installed properly.
What are the most popular thickness for duct board?
Duct board is a pressed fiberglass sheet with a binder that is commonly used in heating and cooling systems. The sheets are typically available in three thicknesses (1″, 1.5″, or 2″) with R-values of either 4, 6, or 8 and the sheets have dimensions of 4′ x 8′, 4′ x 10′, or 8′ x 10′.
Can I use great stuff around heating ducts?
The same heating, vacuum and air conditioning systems that make a home comfortable create penetrations that can cause drafts, forcing appliances to work harder. The air stops here with Great Stuff™ and Great Stuff Pro™ Foam Sealants.
What is cool duct?
The Kingspan KoolDuct System is an advanced and innovative pre–insulated HVAC ductwork system which offers benefits such as reduced installation time, low weight, space savings through flush–to–ceiling installation, increased performance and energy efficiency.
How do you make a Ductboard plenum?
Slit the foil vapor barrier extending beyond the edges of the duct board with a duct board knife. Fold the ends of the foil onto the outside of the duct board. Staple the foil to the duct board. Tape the flaps down with foil tape to complete the duct board plenum.
Do I need duct insulation?
Without proper ductwork insulation, you could be losing 10-30% of the energy used to heat or cool your home. A good level of ductwork insulation will prevent not only energy wastage, but also leaks, temperature drops, and condensation buildup.
What is Thermopan used for?
This THERMOPAN® Joist Liner is a high-quality sheet metal alternative for the construction of return air ducts between joists and stud cavities. The residential return air panning standard, THERMOPAN® is made from “no noise” corrugated insulation faced with aluminum.
What type of ductwork is best?
Flexible ductwork is the best type of ductwork to use in tight or awkward spaces where rigid ductwork would be too difficult to install. Because these air ducts are flexible, they can bend around fixed structures to work in almost any space.
Are fiberglass ducts safe?
Fiberglass, at a minimum, is an acute physical irritant to the skin, eyes, and upper respiratory tract. While no long-term health effects should occur from touching fiberglass. Rashes can appear when the fibers become embedded in the outer layer of the skin.
Can you clean duct board?
Although fiber board and duct board products are designed to withstand cleaning, only an experienced duct cleaner should be trusted. They are made of fiberglass and small particles become airborne during the cleaning process. Sanitizer can be used to inhibit or kill microbial growth which is common on insulated ducts.
Can mold grow in air ducts?
Mold grows in ductwork when two things are present: moisture and warm temperatures. A warm, humid environment has the ideal conditions for mold to form. A humid climate along with poor ventilation, or anything that traps moisture in your walls and causes condensation, can lead to mold in air ducts.
What type of insulation is best for ducts?
The most common material used for insulating heating and cooling ducts is fiberglass. Fiberglass duct insulation is available in various thicknesses and R-values and in either a flexible or rigid form. The flexible type comes in rolls and is relatively easy to install on either round or rectangular ducts.
