Installing Trunk Line In Unfinished Attic

These are 16 inch 406mm wide plywood sheets 8 foot 2 4 m long.

Installing trunk line in unfinished attic.

5 hollow spaces of walls ceilings and attics where such spaces are insulated by loose rolled or foamed inplace insulating material that envelops the conductors. Also it may not be as simple as stapling the wiring to the structural members. Attach trunk line to wood using 1 25 screws use two for both sides but do not over tighten. A couple of years ago i even wrote an article about whether or not flex duct should be banned.

Branch lines spread throughout the attic connecting the trunk line to the inlet tubing. Use the crimpers if you have to cut the pipe. Nec 2008 394 12 uses not permitted. Installing ductwork for heating and air conditioning is a bit like putting together a huge three dimensional jigsaw puzzle.

The intake and exhaust tubing the only exposed tubing in the installation run up the garage wall and into the attic. Locate a wall stud at the desired vacuum system power unit location adjacent to an electrical outlet if possible. Centralvac international 12 800 666 3133. For attic and crawl space installations many installers find it practical and easier to use working boards laid over the open joists or on the ground.

The basic rules of the game however are the same whether you re. The most popular way seems to be before pipe installation in new construction and during pipe installation in existing construction. Attach the bottom of the trunk at an angle hammering into place. When i updated and reposted the article recently at green building advisor jack lagershausen the executive director of the air diffusion.

I ve written a lot about duct problems especially those in flex duct because they re so abundant. Another useful tip is to run a sprinkler on the roof during installation to keep the attic temperature down. The trunk line runs horizontally through the attic from the power unit to the furthest inlet location. Hammer the ends of the metal to attach the pieces together later seal with sealant.

My answer was no but that we need better quality control.