Attic Hvac Requirements

2016 energy code changes.

Attic hvac requirements.

So why put an hvac system up in the attic at all. Attic ventilation works on the principle that heated air naturally rises primarily utilizing two types of vents. First off attic installations are among my least favorite applications from a serviceability system longevity and a laundry list of other items. To continue locating hvac systems in the attic space.

Sometimes air conditioned air will seep right through your ducts and become useless instead of heating and cooling your home. Most updated central air conditioned homes have a new air conditioner split system meaning the ac is broken up into parts. Residential attic hvac equipment july 1 2016 this tip sheet reflects code requirements of the 2015 international residential code irc. Vented attics can be effective as long as hvac ducts are not located in them and the ceiling deck is well air sealed and insulated.

Well mainly it s a way to save space. R value is a measure of insulation s ability to resist heat traveling through it. The higher the r value the better the thermal performance of the insulation. Traditionally building codes have required attic ventilation.

Attic furnace passageway and service area electrical requirement. Additional information can be obtained from your local. Attic hvac systems save space. One of the main purposes of the 2016 energy code is to cut down on the amount of energy that home owners use on a regular basis.

The intent of this tip sheet is to provide a general understanding of the code requirements and does not address the subject in great detail. Here s why that is a good thing. Attic furnace access passageway and platform. The california energy commission updates the building energy efficiency standards title 24 parts 6 and 11 every three years by working with stakeholders in a public and transparent process.

Here in florida it s just a bad idea due to the high humidity and temperature in a vented attic and the condensation issues that can and usually does occur on the equipment. Intake vents located at the lowest part of the roof under the eaves. There will be less duct leakage. The intended purpose was to allow warm air and moisture to escape.

Insulation level are specified by r value. All ducts are at risk for this type of leakage. Attic furnace installation must comply with you local mechanical code or imc international mechanical code if such was adopted in your area. Posted february 3 2017 by rick cowperthwaite.

California s energy code is designed to reduce wasteful and unnecessary energy consumption in newly constructed and existing buildings. Attic hvac systems also require shorter ducts. Duct leakage causes a lot of problems including less. These are significant challenges.