The following are attic furnace installation requirements based on 2009 irc and 2009 imc the codes refer to it as appliances in attics.
Install raised walkway in attic.
Here s how to go about it.
The surface itself just has to be strong enough to handle your weight along with tools and gear.
The intent is to lay down the boards and the ends should attach to a ceiling rafter.
Cut the 5 8 inch plywood sheets to create gussets.
How to make a catwalk in the attic.
Apply construction adhesive on one side and place it on the horizontal chord.
Cut 2 thick lumber to length for the frame.
The first plank is placed at the entrance of the attic walkway on the first horizontal chord.
We normally recommend that you place plywood over the top of the rafters creating a walkway to the a c and in that area only lay in one or two layers of unfaced fiberglass blanket on top of the plywood walkway and around the ac unit itself.
The lumber should be wide enough to extend above.
Attic furnace access passageway and platform attic furnace passageway and.
Attach metal covers to electrical junction boxes and move any electrical wires out of the way or notch the frame to fit.
Build a frame on 16 centers perpendicular to the attic floor joists.
Screw the frame to the joists to.
Attic furnace walkway platform attic furnace installation must comply with you local mechanical code or imc international mechanical code if such was adopted in your area.
An attic walkway doesn t have to be pretty or expensive.
We used leftover plywood scraps to build ours an attic walkway also needs enough support.
A 4 foot long plywood strip will need at least 8 screws on it.