I am building a facade for a big screen TV above a gas fireplace. The facade is to be made of veneered 1/4 sawn E black walnut running vertically. I am mounting to regular old MDF. Is it okay if heat exceeds 120 degrees, or should I use fire rated MDF? What glue for the veneer? I will have to make a return where a side butts a wall via glue and tape miter. What glue for the miters?
From contributor C:
If you are installing any combustible material around a fireplace, you need to know what the local fire code requirements are. The codes are very specific about the distance between the firebox opening and combustible materials. Also, the projection (how far the materials are proud of the surface) usually comes into play. Regarding glues, I would stay away from PVA or contact cement. Both of these can be reversed with heat. I would use a urea resin glue.