Hello,
I searched around the forum but didn't really find good answers to my concerns. If you recognize the question, feel free to direct me to the right threads...
Background:
One and a half months ago, the old boiler in the house broke down. It overheated, crashed, and all the water ran out through the overheat protection. However, the water gushed out so quickly that the regular overflow protection couldn't handle all the water, so it splashed freely on the surrounding walls, and probably also into the wall where the overflow protection runs out outside.
The boiler room is located in the basement / semi-basement of a 30-year-old house. The inner walls are built in the old way with an outer wall - fiberglass (by yellow insulation I mean) wooden studs with more insulation inside them - plastic and then gypsum board.
Last year, we drained around the house and put pordrän (or if it was isodrän) on the outside of the house.
Current Situation
Yesterday, I discovered black spots on the wall where the water had splashed. I could easily remove the paper that had been on the gypsum and saw something there that I guessed was mold infestation. Today, I removed the lower part of the gypsum wall and saw clear signs of black mold. The mold has primarily grown between the gypsum and the plastic.
My plan is to remove all the old organic material and the gypsum. Rebuild new inner walls using steel studs and water-resistant boards around where the boiler stands and where we have a sink in the boiler room.
The wooden studs are in perfect condition, so no infestation or moisture has reached them.
Question
Should anything special be done with the floor where the moldy walls have been before rebuilding? I was, of course, planning to set up a dehumidifier and heater for a while to dry up any remaining moisture. But should anything be sanitized where mold might have grown? After all, the gypsum boards have "stuck down to the floor" along the walls since they were cast with self-leveling compound after the walls were in place. And it was clear that the black mold had grown all the way down on the gypsum boards.
/Stefan
I searched around the forum but didn't really find good answers to my concerns. If you recognize the question, feel free to direct me to the right threads...
Background:
One and a half months ago, the old boiler in the house broke down. It overheated, crashed, and all the water ran out through the overheat protection. However, the water gushed out so quickly that the regular overflow protection couldn't handle all the water, so it splashed freely on the surrounding walls, and probably also into the wall where the overflow protection runs out outside.
The boiler room is located in the basement / semi-basement of a 30-year-old house. The inner walls are built in the old way with an outer wall - fiberglass (by yellow insulation I mean) wooden studs with more insulation inside them - plastic and then gypsum board.
Last year, we drained around the house and put pordrän (or if it was isodrän) on the outside of the house.
Current Situation
Yesterday, I discovered black spots on the wall where the water had splashed. I could easily remove the paper that had been on the gypsum and saw something there that I guessed was mold infestation. Today, I removed the lower part of the gypsum wall and saw clear signs of black mold. The mold has primarily grown between the gypsum and the plastic.
My plan is to remove all the old organic material and the gypsum. Rebuild new inner walls using steel studs and water-resistant boards around where the boiler stands and where we have a sink in the boiler room.
The wooden studs are in perfect condition, so no infestation or moisture has reached them.
Question
Should anything special be done with the floor where the moldy walls have been before rebuilding? I was, of course, planning to set up a dehumidifier and heater for a while to dry up any remaining moisture. But should anything be sanitized where mold might have grown? After all, the gypsum boards have "stuck down to the floor" along the walls since they were cast with self-leveling compound after the walls were in place. And it was clear that the black mold had grown all the way down on the gypsum boards.
/Stefan
Brush everything thoroughly with a wire brush, apply Boracol ... if any mold smell remains, you can paint over with oil paint. If you're unsure if that's enough in your case - contact a sanitation company.