State Of Florida Attic Duct Work

Ducts shall be pressure tested to determine air leakage by one of the following methods.

State of florida attic duct work.

R403 3 3 duct testing mandatory. Your air conditioning system will be forced to work harder to keep your home cool. Energy star s map of recommended home insulation shows that the majority of florida is within zone 2. Learn more about this below as well as the types of insulation to put in your attic why you need attic insulation and more.

Install ductwork so that it is in direct contact with i e laying on the ceiling and or truss lower cords. With hundreds of square feet of ductwork surface area in the attic and a δt of 75 f the air coming out of the vents in your home will be significantly higher than 55 f. R6 or r8 flex duct in attic in florida. Having proper attic insulation can impact your whole home.

1 10 5 25 per foot insulated flexible duct 4 to 16 diameters used as branches or in radial duct attic systems 2 30 13 00 per foot round and oval sheet metal duct 3 to 8 diameters typically used for trunks in small homes and branches in larger homes. In warmer weather when you are trying to keep heat out this unwanted summer air can pose many problems. Although both the attic floor and the ductwork are insulated ted recognizes the situation isn t ideal. In homes older than 20 years duct tape may have been used as a sealer duct tape may be a universal fixer of all things except when it comes to your ductwork.

Duct insulation materials shall conform to the following requirements. Attic insulation in south florida can help slow the transfer of heat into your home which can keep your home cooler and reduce your energy bill. The florida building code energy conservation for duct insulation r value requirements. This zone has a recommended r value of 30 to 60 for an uninsulated attic r25 to r38 for an attic with existing insulation and r13 to r19 for the floor.

Duct coverings and linings including adhesives where used shall have a flame spread index not higher than 25 and asmoke developed index notover 50 when testedin. This is allowing you to utilize r 6 supply duct work in attics if the performance method is utilized for the energy calculations. Throw duct leakage into the mix and the problems are even worse. An attic without insulation will allow hot air to enter your home.

Scope when hvac ducts are installed in a vented attic in a dry climate bury the ducts in attic insulation to protect them from temperature extremes in the unconditioned attic space.