Is Mold Lurking Above Your Head?

 When was the last time you climbed up into your attic? 

Right.  It's not something most people do very often.  So if you had mold in your attic, which is not uncommon, how would you know?  Right again -- you wouldn't know.

If you are concerned, or just plain curious and have nothing better to do, take a look in your attic and see if you notice any of the following tell-tale signs of mold:  

1. Black spots on the attic sheathing – usually heavier on the north side of the house.
2. Solid black wood – it almost looks like it has been burned or covered in soot.
3. Black staining on wood around nails, or rusty nail heads
4. White or pale fuzz-like substance, powder or film on the sheathing and rafters

OK, it looks like you have a mold problem.  Now what?

First, let's figure why your attic has mold.  Here are some of the most common causes: 

1. Poor ventilation creating condensation on the sheathing
2. Inadequate insulation allowing warm air from the house to enter the attic space during the winter months
3. Bathroom ceiling fan venting into the attic
4. Leaking roof

There are times when a homeowner can take care of the problem himself or herself, but this is not one of those times.  We recommend a professional investigation.    By the way, spraying with bleach alone is not an effective way to get rid of mold.  If you want to make it invisible, sure, bleach works just fine.  But if you want it gone, that's another story. Stay with me here.

Depending on the age of the roof, here are your options: 

1. Replace the roof shingles and remove the sheathing in the process
2. Abate the mold using a 2-part cleaner/disinfectant followed by an encapsulant that may come with a long-term warranty
3. Dry-ice blasting 

A mold professional will work with you to find the most cost effective way to eliminate your mold problem.  And remember, if you don't feel comfortable with the recommendations of your mold remediator, get a second opinion.  It's your house. 

For more information about mold removal