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.

Installing trunk line in unfinished attic.

My answer was no but that we need better quality control. Nec 2008 394 12 uses not permitted. Attach trunk line to wood using 1 25 screws use two for both sides but do not over tighten. Attach the bottom of the trunk at an angle hammering into place.

Mine has dedicated intake and exhaust lines via pvc pipe to the outside of the house not through the chimney just curious. Also it may not be as simple as stapling the wiring to the structural members. Another useful tip is to run a sprinkler on the roof during installation to keep the attic temperature down. When i updated and reposted the article recently at green building advisor jack lagershausen the executive director of the air diffusion.

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. I ve written a lot about duct problems especially those in flex duct because they re so abundant. These are 16 inch 406mm wide plywood sheets 8 foot 2 4 m long. The intake and exhaust tubing the only exposed tubing in the installation run up the garage wall and into the attic.

Branch lines spread throughout the attic connecting the trunk line to the inlet tubing. Installing ductwork for heating and air conditioning is a bit like putting together a huge three dimensional jigsaw puzzle. Locate a wall stud at the desired vacuum system power unit location adjacent to an electrical outlet if possible. Use the crimpers if you have to cut the pipe.

The basic rules of the game however are the same whether you re. Centralvac international 12 800 666 3133. Hammer the ends of the metal to attach the pieces together later seal with sealant. Concealed knob and tube wiring shall not be used in the following.

The trunk line runs horizontally through the attic from the power unit to the furthest inlet location.