BthR Mould Prob, could be TOO big for me??

[Andy DIY]

Hey all, Im looking for advice on this repair project and whether or not I or someone professional should tackle it.

The shower stall was retiled and new rhino board and moisture resistant drywall installed 4 years ago by pros, and obviously there is a water leak somewhere behind the shower door hinge plate near the bottom. (pics attached)

Mould started showing up on the ext. of the drywall so Ive removed a small chunk to assess the severity... and it is about what I expected. Other than tearing out a section of the shower wall and rhino board etc., and somewhat assuming the mould may continue to grow, I was thinking of drying it out and sterilizing what I can see, and then repair the drywall.

The catch is that time is an issue and repairing it myself would be the quickest and cheapest fix for now. It needs to be presentable within 1 month, so I suppose a bandaid for now could work then after look into a proper repair??

Any advice is appreciated, Thanks

[HayZee518]

mold can't reproduce without warmth and moisture. bleach is in-effective for killing mold. mold has tiny threads that embeds itself into a substrate - sheetrock and wood. mold is spores - just like the spores that mushrooms form from. get rid of the moisture - mold goes away. sand and vacuum the mold with a hepa filter vacuum. encapsulate the mold with a suitable sealer - KILZ is one brand name.

[manhattan42]

Doesn't appear to be a problem of any concern.

Use a chlorine bleach solution and/or some detergent to clean the mold on the affected areas (bleach does kill mold) then simply repair the leak and damaged drywall.

Done.

http://www.cdc.gov/mold/faqs.htm#decrease

[Drywall DIY Guy]

Bathroom Moisture

Not 100% sure where the tile is - the floor? At any rate, I had a section of wall next to our tub that would ALWAYS get ruined due to kids splashing water. Drywall of any type will NOT hold up. So I replaced the drywall along the tub with tile backer board and skim coated the tile backer board to fill the surface and make it smooth. I taped and finished at the edges of the backer board to join it to the other drywall and when done looked great. End of problem.