Plywood backerboard for panel

[augie47]

To me, painting the backboard certainly adds a touch of professionalism to the job.
We painted a half-dozen at a time and kept them in the shop sending them out with the panels.

 

[kwired]

There is a big difference in on old house that has a damp cellar with old stone walls & cracked floors and no windows,ventilation or heat compared to homes built with basements ( which are only partially below grade level ) poured concrete or cement block walls, windows and if forced hot air heat have air registers that keeps humidity level stable entire year.

And then there are those that have the former and decided to have it sealed up better and added some heating/cooling to maintain better air quality which often results in better air quality throughout the entire house. Seen many dirt floor crawl spaces that get vapor barriers and perimeter insulation installed for same reasons.

 

[hbiss]

Don't know where, probably NYC, but I heard they wanted fire retardant plywood painted with a fire retardant paint and don't paint over the area that is stamped to say the ply is fire retardant.

-Hal