Mold on walls

[Eric Tsang]

Hello BiggerPockets,

Every cold season my bedroom walls located where the windows are get moldy all the time. A few questions maybe some experts can help me with -

1. What can i do to prevent mold from building up?

2. Should i replace the insulation and dry wall?

3. Do windows need to be replaced? the edge on the windows are also get moldy every cold season.

Thanks,

Eric

[Tariq B.]

There is only one way to stop mold. Find the location where you are getting to much moisture. Could be a leak in the roof or a leak in the wall. But more likely it is a leak somewhere where the window meets the insert to the house. 

If you have mold then yes you would need to replace the drywall and insulation. Of course after you have found the source of the problem