US NEC requires if edge of hole in stud/beam is <1-1/4" from edge, then
it needs must have the 1/16" T steel cover plate over the location for
protection. I'd suspect Canadian Code to be very close to same if not
In unfinished attics, open cable across top of must have guard strips of
minimum height > height/thickness of cable and if running across top,
can _NOT_ be unsupported, _MUST_ be on a running board, not suspended.
This is allowed if thru bored holes 4-1/2ft or less span (how they got
that one, I don't know... :) ).
The flooring either side of a cutout could serve as the guard strip but
I'd suggest covering the openings. I _think_ once the floor is in place
the "no hanging" requirement is removed as it then is protected from
having anything pulling it down or from being stepped on, etc., ...
On Sunday, June 1, 2014 1:43:56 PM UTC-4, dpb wrote:
That's where I was at too. The flooring protects it except where the
cable crosses a joist, where he's proposing to cut a hole in the
flooring. If he does that, the cable is recessed and I'd cover it with a
metal nailing plate that are readily available in the building supply section of HD, etc. I would think most inspectors would pass that.
I think CLaire's argument is that once you cover it up, someone could
potentially drive a nail into the attic floor between joists and hit
the cable. I think that's unlikely though and the cable probably has
enough give in between that a nail would just move it, not pierce the cable anyway.
I guess if the OP wants the definitive answer, he could ask the local
inspector. The other factor here is with 2x6's you don't have much
insulation. If the OP is in most of the USA, and it's an unheated
attic, it would be a better idea to add some height, add more insulation
and that solves the problem too. That's what I'd be looking at, if
HomeOwnersHub.com is a website for homeowners and building and maintenance pros. It is not affiliated with any of the manufacturers or service providers discussed here.
All logos and trade names are the property of their respective owners.