Gunnar Alquist
03-11-2014, 12:45 PM
From yesterday afternoon's inspection. Mid 1980s tract house. Nothing remarkable... until I wandered into the bathroom.
Master bathroom stall shower was odd. Tile surround with a tile pan, LOTS of caulk at the lower corners and a funky (but not necessarily problematic) faucet setup. Then I noticed two drain screens. The interior of the drain looks like the type of drain associated with a fiberglass pan. When I got underneath, there was a square hole in the plywood under the shower, expanded metal lath with some kind of mortar or thinset above the lath, and a plastic drain fitting. The drain fitting is not the type associated with a tile pan (I'm blanking on the name of that fitting), but looks like a fiberglass shower pan drain fitting.
I did fill the pan with water while I was in the bathroom and pulled-back the insulation below the shower when I was in the foundation crawlspace area, but found no leaking at the shower drain or the pan area. There were dry stains on the p-trap though.
My thought is someone tiled over the fiberglass pan (or maybe a terrazzo pan?) and the grout failed at the corners due to flexing of the fiberglass. No loose sounding tile when I tapped, but maybe the mastic held. I let the buyer know this is a nonstandard installation that will likely fail and that's essentially what I will put in the report.
Just wondering if anyone has any additional thoughts.
Master bathroom stall shower was odd. Tile surround with a tile pan, LOTS of caulk at the lower corners and a funky (but not necessarily problematic) faucet setup. Then I noticed two drain screens. The interior of the drain looks like the type of drain associated with a fiberglass pan. When I got underneath, there was a square hole in the plywood under the shower, expanded metal lath with some kind of mortar or thinset above the lath, and a plastic drain fitting. The drain fitting is not the type associated with a tile pan (I'm blanking on the name of that fitting), but looks like a fiberglass shower pan drain fitting.
I did fill the pan with water while I was in the bathroom and pulled-back the insulation below the shower when I was in the foundation crawlspace area, but found no leaking at the shower drain or the pan area. There were dry stains on the p-trap though.
My thought is someone tiled over the fiberglass pan (or maybe a terrazzo pan?) and the grout failed at the corners due to flexing of the fiberglass. No loose sounding tile when I tapped, but maybe the mastic held. I let the buyer know this is a nonstandard installation that will likely fail and that's essentially what I will put in the report.
Just wondering if anyone has any additional thoughts.