On Mon, 12 Nov 2012 16:55:05 -0500, Keith Nuttle
<
Keith_...@sbcglobal.net> wrote:
>We are putting a 41" X 33" mirror in the tv hole above our fire place.
>The Mirror is 1/4" thick. The TV hole is standard framing 2x4 with
>header. The mirror would fit into the hole in the existing framing with
>the trim that was applied for the TV hole.
>
>The plan was to put a 1/2 inch sheet of plywood as a backer board for
>the mirror. The mirror and the backer board would be held against 1X2
>frame attached to the trim of the existing TV hole.
>
>Today I went to get the wood to cut the 41X33 backer board from.
>
>I realized that even 3/4 plywood will warp not a good thing if the
>mirror is masticed to it.
It shouldn't warp in the dry inside air, and it shouldn't get hot if
you use your fireplace correctly (flue open). DAMHIKT
>What would you recomend for a backer board?
>
>I have talked to several people with ideas all over the board. from
>sheet rock to no backer.
MDF, aka Termite Barf. It's more stable. DO seal all faces and edges,
though. Are you going to make a hidden compartment, too?
--
While we have the gift of life, it seems to me that only tragedy
is to allow part of us to die - whether it is our spirit, our
creativity, or our glorious uniqueness.
-- Gilda Radner