What is underground duct?
Underground duct is a cost effective solution when air needs to be supplied to adjacent or contiguous buildings because a central unit can serve all locations. PVS duct requires no protection from concrete or the minerals and salts found in backfill.
What is blue duct used for?
The BlueDuct® is the only proven, direct-burial underground duct system made from ultra-durable, advanced HDPE (high-density polyethylene). The products are engineered to protect against corrosion, mold and mildew, radon, rust and air leaks.
Can you run HVAC underground?
Buried or underground refrigerant piping on residential HVAC systems is not recommended, but at least for some manufacturers and building codes, underground refrigerant distribution piping is not expressly prohibited, but where used it must be properly installed, protected,& insulated.
Can you bury ductwork?
Buried ducts can be used in dry climates. For humid and marine climates, ducts should be encapsulated in at least 1.5 inches of closed-cell spray foam before burying in blown insulation.
What is FRP duct?
Fiberglass Reinforced Plastic Duct is custom manufactured for Industrial Corrosion Resistant Fume Exhaust applications. The resin system used is determined by the chemical, pressure and temperature exposures that the duct is subjected to. Typical applications include the following: Wastewater Treatment Plants.
What is PVC duct pipe?
Used mostly by contractors and builders, PVC duct is a thin walled version of traditional PVC pipe. Because of its thin walls, duct is not used to carry pressurized liquids like standard pipe. Instead, it is used for light drainage, fume, and exhaust applications.
Can you use PVC for ductwork?
In homes, PVC ductwork can allow a heating and cooling system to run beneath the house without being corroded by moisture or even radon. While metal ductwork is generally fine for smaller buildings, PVC is often preferred in larger buildings, where heat and cool air need to travel farther through the ducts.
How do you run ductwork under concrete?
Placing any return-air ductwork under the concrete slab is not recommended, since this will tend to draw radon into the ductwork and distribute it around the house. If supply ductwork must pass through a subslab space, it should be seamless or sealed airtight with durable aluminum tape or duct mastic.
Do HVAC return ducts need to be insulated?
Return air ducts only need to be insulated if they pass through environments that adversely affect the return air temperature. Exhaust air ducts normally do not need insulation. Insulation prevents condensation and dripping from ducts.
Is fiberglass ductwork bad?
Fiberglass. When ducts are damaged or deteriorating, they can introduced particles of fiberglass into the air you breath. According to the American Lung Association– Inhaling fiberglass can reduce lung function and cause skin eye and throat irritation, in humans and animals.
Which type of ductwork is best?
Fiberboard Ductwork. This type of duct work is created using fiberglass strands.
Does ductwork go bad?
Mold is another culprit that can make good ductwork go very, very bad. Old fiberboard ductwork is particularly susceptible to mold growth, but mold can sometimes be found in other types of ductwork too. When mold gets going inside of a home’s ductwork, it can spread fast.
What types of ductwork are there?
Different Types of Ductwork Flexible Ductwork. Flexible ducts are typically round tubes made up of steel wire helixes covered in flexible but durable plastic. Rigid Ductwork. The second category of ductwork is rigid ductwork. Sheet Metal Ducts. Fiberglass Lined Ducts. Fiberboard Ducts. HVAC Company in East Tennessee.
How does ductwork work?
Ductwork is used to distribute airflow from your heating or cooling system throughout your home. This involves the air being sucked from throughout the house into the heater/air conditioner, where it is heated or cooled, and pushed back through ducts into the living space.