How do I treat mold in my attic?
Christopher Snyder
Updated on March 13, 2026
DIY Attic Mold Removal -Hard Surface Cleaning
- Hydrogen Peroxide. When using hydrogen peroxide, spray the area to clean thoroughly, and let it sit for 10-15 minutes. ...
- White Vinegar. For white vinegar, spray the area to clean thoroughly, and let it sit for at least 15 minutes or up to one hour. ...
- Baking Soda. ...
- Essential Oils.
Can you get rid of mold in attic?
Mix 1 part of hydrogen peroxide with 2 parts of water and spray it on the mold areas. Leave it for an hour for it to work. Some heavy molds may be stubborn enough for vinegar. Hydrogen Peroxide can help removing of mold and is safe and natural to use.How serious is mold in attic?
Not only do mold spores from the attic inevitably circulate throughout the house, putting your family at risk of serious health problems (in addition to causing allergic reactions, mold has been implicated in cases of severe respiratory distress, pneumonia, chronic headaches, immune system disturbances, confusion, and ...How much does it cost to remove mold in an attic?
Mold usually grows in your attic because of a moisture problem from a leaky roof, leaking AC unit, or condensation from poor attic insulation. Attic mold treatment costs $1,500 to $3,500 on average and can go as high as $6,000 to $10,000 if the leak is large or has gone undetected for a long time.What kills mold instantly?
Use undiluted white vinegar on hard surfaces in kitchens and baths. A bleach solution also works to kill mold. Mix one cup of bleach in a gallon of water, apply to the surface and don't rinse. Mix a 50/50 solution of ammonia and water.How to Clean Up Attic Mold | This Old House
Can you use bleach on attic mold?
To kill the mold, mix 1 part bleach and 3 parts water, and apply to the mold areas. I think the moldy insulation should be replaced, because it is difficult even to spray a bleach solution onto the insulation.Can I spray insulation with bleach?
The Effects of Using Bleach on Porous SurfacesBy now you should have a pretty good idea that you shouldn't use bleach to attempt to kill mold on a porous surface like wood, drywall, insulation, fabric or cardboard.
Is vinegar or hydrogen peroxide better for mold?
Hydrogen peroxide is just one of many household ingredients you can use to clean mold. Using vinegar is another effective way to clean mold in your home. However, it's important not to mix hydrogen peroxide and vinegar together.Why you shouldn't use bleach on mold?
Chlorine bleach cannot penetrate to destroy the growth as it grows at its roots. Mold spores spread its roots, called mycelia and hyphae, deep into porous surfaces. Bleach is dangerous to humans and pets. Chlorine produces fumes that pollute the air and can become dangerous to both humans and pets.How do I clean my attic myself?
Top 10 Tips for Easy Attic Cleaning
- Step One: Remove Everything. An empty room is the easiest to clean. ...
- Wipe Away Every Inch of Dust. ...
- Vacuum, Then Sweep. ...
- Inspect Your Insulation. ...
- Look for Moisture and Mold. ...
- Take a Few Preventative Measures. ...
- Sort Your Belongings. ...
- Donate What You Don't Need.
How do you deep clean an attic?
Instructions
- Put on Protective Gear. ...
- Gather Cleaning Supplies and Tools. ...
- Empty the Space. ...
- Remove Dust. ...
- Sweep and Vacuum. ...
- Wash Windows and Screens. ...
- Inspect the Attic. ...
- Sort Stored Items.
Can I clean my own attic?
However, cleaning your attic can begin with your own methods before calling in the professionals. Assess the problems. It's incredibly important to see what you're dealing with in your attic. Some homes have minimal issues like the standard dust and dirt.Is mold in attic common?
Mold in attics is very common and can usually be dealt with quickly and effectively. No need to panic and treat your home as if it's uninhabitable and beyond repair. Attic mold is caused by moisture and mildew issues.Is there a fogger for mold?
Applying Concrobium Mold Control with a cold (ULV) Fogger is an effective way to eliminate mold and musty smells in large or inaccessible spaces. A fogger evenly mists Concrobium Mold Control to saturate the air in the enclosed environment, and evenly coat all surfaces.Can you put a dehumidifier in an attic?
Yes, a dehumidifier can help reduce moist buildup in your attic. It retains moisture and stores it in a tank, and you only need to drain it out frequently.What should I look for when inspecting an attic?
Attic Inspection Checklist
- Ventilation. Signs of poor ventilation include, mold, rusted nails and condensation.
- Insulation. Your attic shouldn't feel drafty, and insulation should be plentiful and complete.
- Leaks. Water stains, rot and mold point to leaks.
- Pests. ...
- Exhaust ducts and vent stacks.
Why is my attic so dirty?
Most often the dust is due to the type of insulation that's in your attic. We talk a lot about how the attic matters! The temperature of the attic, the humidity, moisture, airflow—it affects your whole house. And this is still true when it comes to dust!How long does it take to clean an attic?
It typically takes 1 day to clean an average size attic. It can take longer for large attics with more dirt.Is there a spray that kills mold?
Best Overall: RMR Brands RMR-141 Disinfectant and CleanerThis is an EPA-registered mildew spray, which means it's a chemical agent capable of inhibiting the growth of mildew. 1 RMR-141 disinfectant has proven effective against 141 different microorganisms and will kill mold, mildew, bacteria, and more.
What is the best mold killer?
Best Overall: RMR-86 Instant Mold & Mildew Stain RemoverIt works on most surfaces, including wood, concrete, and tile, and it can be used both indoors and outdoors. The bleach-based formula promises to be five times stronger than other products, so if you've got a tough stain, this is your best friend.