DIY Home Improvement Forum banner

1 - 15 of 15 Posts

·
Registered
Joined
·
7 Posts
Discussion Starter #1
I'm having concerns i may have mold in my attic. What maybe the cause of the problem is that I installed wooden soffits around my 1940s home and it may not be vented properly. I used the 4 inch round soffit vents I bought from Home Depot and I installed each one along where the screen vents were going into the attic. When I had my roof replaced ten years ago I had ridge vents put in and I notice I get a lot of outside debris in my attic. I'm really concerned to the point that I'm going to take down the soffits I put in.

I"m not completely sure its mold but it has increased over the last several months. I'm getting a black powdery substance along the roof rafters and today I noticed a few areas that have a white powdery substance.

Also my bathroom vent is vented through the roof....Please help.
 

·
Registered
Joined
·
37,269 Posts
Got some pictures?
Sure the vents are not blocked up with insulation?
Would have been a whole lot better to have used larger vent in the soffit.
Hit that black stuff with some bleach and see what happens.
 

·
Registered
Joined
·
7 Posts
Discussion Starter #5
I was able to take some pictures. To me it looks like mold and Im getting really concerned about it. I was hoping if I remove the soffits I put up it would resolve the problem?

I did spray a couple of areas with water/bleach and didnt really notice a change.
 

·
registered
Joined
·
1,354 Posts
go to dollar store and buy some tilex mold and mildew remover. You will find it in the clean your bathroom section of store. Spray it on. If its mold it will disappear in 15 minutes.:yes: Its around 3 dollars for a spray bottle of it.
 

·
Registered
Joined
·
11 Posts
Is there enough insulation? Excessive her loss and insufficient venting are the two biggest causes of moldy attics. Usually combination of both.
 

·
Registered
Joined
·
7 Posts
Discussion Starter #8
Is there enough insulation? Excessive her loss and insufficient venting are the two biggest causes of moldy attics. Usually combination of both.
I do need insulation...bad. You can probably tell by the pictures. I put the soffits in myself about 3 months ago and not long after that's when the problem started.

I took some of the soffits down today hoping it will slow down the process.
I will remove the others on Monday.
 

·
Registered
Joined
·
1,311 Posts
first off you live in Florida humid conditions closing off the ventilation to the attic is what is causing this. you choked the air flow down and You need R 49 for your attic. when you put it in make sure not block or restrict the air flow for your attic.
 

·
greetings from Bolivia
Joined
·
74 Posts
just use chlore (the stuff you clean your toilet with) and the mold dies and fades away.
For the moisture, it has to come from somewhere,
either some drainage problem and/ or lack of ventilation.
The mold is just a sympthom, you need to get into the moisture issue, why there is moisture
 

·
Mold!! Let's kill it!
Joined
·
2,849 Posts
Yep. Looks like typical mold that will form on rafters in an undervented attic. Now that you have it, correcting the ventilation issue will cause it to go dormant, but not kill it. If you are really concerned about it, the only way to get rid of it now, is to scrub it off. Some detergent solution in a spray bottle and a scrub brush, then wipe up everything. Don't just scrub it off and let it drip down into your insulation. Dead mold carcasses can be as allergenic as live ones. After you clean it all, then spray it with a fungicide if you feel the need.
 

·
Special User
Joined
·
917 Posts
I do need insulation...bad. You can probably tell by the pictures. I put the soffits in myself about 3 months ago and not long after that's when the problem started.

I took some of the soffits down today hoping it will slow down the process.
I will remove the others on Monday.
You probably just need more soffit vents. See if you can find out the Net Free Vent Area of your brand of ridge vent, and then install at least that amount of net area in soffit vents. Should be no problems then.

Don't forget baffles to keep insulation from clogging the vents!
 

·
Registered
Joined
·
38 Posts
why did you close off the soffit's in the first place? second if it is the problem then take the soffits off. problem soloved.
 

·
Registered User
Joined
·
11,730 Posts
1 - 15 of 15 Posts
Top