What Causes Black Mold In Attic
Mold species such as Stachybotrys chartarum, which looks like slimy growth, loves attic, basement, bathroom, and space under the sink. Black mold can also grow behind the walls or attic ceilings, completely undetected until the occupants smell the presence or experience health problems.
Add bad ventilation and high humidity level, and you get perfect breeding grounds for black mold. Leak from roof may create drips that further dampen your attic, making it more susceptible to mold. You may seldom venture to the attic, which means the mold problem is often neglected until too late.
Cost Of Mold Remediation In An Attic
Expect to pay $1,500 to $9,000 for mold removal, depending on the space size and accessibility. Attics are great for mold growth due to poor ventilation, proneness to moisture problems, such as a leaking AC unit or leaky room, or condensation from poor insulation. If the most affected area is within the insulation, you may have to remove it. The labor for insulation removal raises costs. Proper cleaning and ventilation are the most important steps of mold remediation in the attic.
Attic Mold Removal Cost
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.
- Hire Carpenter to Replace joists and attic beams: $75/hour
- Replace attic insulation $45$1.50/sqft
- Fix leaky roof $225+
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What Is Considered A Covered Peril
A covered peril is an occurrence that the insurance company agrees to reimburse you for if you file a claim. Fire, lightning strikes, windstorms and hail, the weight of snow and ice, theft, and vandalism are all covered risks. In addition, homeowners insurance specifies which risks are not covered.
How To Treat Black Mold In Attic
Depending on the size of the black mold growth, you can try removing it yourself. For small growths, there are several home remedies to clean them. Here are the steps:
- Remove all the contaminated stuff. Black mold grows easily, so you need to remove all objects that may make the mold grow again. Make sure to wrap them tightly in plastic, to prevent the mold spores from growing and spreading.
- Prepare proper cleaning tools. You need a mask, gloves, and goggles. Make sure to dispose of all of them after the cleaning. Again, you need to wrap them tightly with plastic, before discarding the objects.
- Make sure there is enough ventilation in the attic. Poor ventilation will make you get exposed to flying spores that cannot get out.
- Mix some detergent with warm water until foamy. Use this mixture to scrub the moldy surface as hard as you can. This solution is perfect for nonporous materials, and not ideal for wood.
- Detergent does not work? Add a half tablespoon of baking soda into the water in a medium-sized spray bottle . Shake the bottle and spray the mixture to the moldy surface. Scrub the mold clean before spraying again. This time, let the mixture to dry by itself.
- Discard all the tools you use for cleaning . Wrap them in plastic before throwing them out. This is to prevent mold spores from flying around.
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How To Prevent Mold Growth
The easiest way to ensure that mold does not grow in your attic space is by making sure that moisture is not present in the attic. Inspect the following areas to ensure that nothing leaks in or allows moisture in.
- Roof leaks-inspect your roof to ensure there are no leaks that cause dampness and moisture buildup.
- Raised shingles-make sure that the shingles are secured keeping water from getting trapped and creating an increase in moisture.
- Ventilation-proper ventilation in the attic allows air to flow evenly throughout and all moisture causing hot air to escape.
- Air gaps-check to ensure that the attic is sealed and not allowing energy from the home to flow into it. Also, this can create a hotbed of damp heat and a breeding ground for mold.
Checking these areas and making sure that the attic is sealed as tight as it is supposed to be, can keep you from ever having a mold growth issue.
Air Ducts / Hvac System
An HVAC systems ductwork is susceptible to moisture buildup and condensation, leading to mold growth. Air ducts require specialized mold remediation to avoid leaving airborne spores behind.
When you or an inspector discover mold in your HVAC system, turn it off immediately. Keeping it off helps ensure airborne spores dont spread through your home and cause health issues.
On average, mold remediation in an HVAC system and its air ducts costs between $1,900 to $6,500.
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How Do I Know If I Have Mold In My House
Some contractors offer free testing. The most comprehensive tests come from experts who have specific working knowledge of sampling methods and protocols. That includes those recommended by the American Conference of Governmental Industrial Hygienists or the American Industrial Hygiene Association.
Investigations often disturb potential areas of growth. For example, it may be necessary to cut sections of wallpaper to examine drywall or sections of carpet to test floorboards. Either action may release toxic spores into the air.
Cost To Get Rid Of Mold In Drywall Or Concrete Walls
Getting rid of the growth on your drywall will range between $1,000 and $20,000. Where you land depends on whether you need a simple treatment or replacement of the entire wall and everything behind it.
If its been on the wall for too long, the material may no longer be usable. In that case, the price to repair your drywall adds another $300 to $825 to that budget.
Removing growth on wooden walls ranges between $700 and $5,000. For concrete mold, that range can go up to $10,000 or more if replacement is necessary.
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Mold Inspection And Remediation Cost
In many cases, remediation begins with an inspection to find all the mold, where it extends to, and possible sources. In some cases, if you choose remediation from the same company, they may waive the cost of the inspection or include it with the remediation. Other times, the cost of the inspection is separate at $450 to $800, regardless of whether you have remediation done with this company. Some companies include testing to determine the mold type, but many companies do not do testing, with the assumption that if you see mold, you have mold, and the type is not going to greatly impact the remediation. For the average home, the cost of a full inspection and remediation averages $1,950 to $5,800. Costs are higher when more mold is found, while costs are lower if only a small amount is found.
You may want to hire an inspector who is unaffiliated with a mold remediation company for an in-depth look at the issues. In this case, it is a good idea to hire someone through the American Board of Industrial Hygiene or American Council for Accredited Certification to ensure the inspector is accredited and can provide a report to show your insurance adjuster or that there is no mold when you sell your home.
Is Mold Removal Covered By Homeowners Insurance
Typically, homeownerâs insurance policies will only cover mold damage if it was caused by an issue that is covered by the contract. These are referred to as âcovered perilsâ. This might include mold caused by a storm, if storm damage is covered under the policy. In most cases, however, mold is caused by a preventable leak, flood, or humidity which is typically not covered.
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Mold Damage Repair Cost
The cost to repair mold damage ranges between $75 and $3,000, in addition to the remediation costs. In most cases, simply cleaning the mold is enough to address the problem. However, if there has been ongoing water damage or a flood, you may need to repair and replace many of the porous areas of the home. This could include the removal and replacement of drywall, carpeting, hard flooring, cabinets, furniture, and other areas. It may involve simply repairing the damaged areas, which will typically incur a cheaper repair cost than total replacement.
Average Cost Of Mold Remediation Per Square Foot
If an inspection by a qualified expert reveals that the mold problem you are dealing with is mild, they might recommend mold remediation as opposed to mold removal. Using data from a variety of companies dealing with mold removal and remediation in the USA, the average cost for mold remediation services ranges between $10 to $25 per square foot.
Mold remediation focuses on restoring the mold levels to natural levels where the mold is not considered toxic to occupants and cant be eliminated because of the natural environmental conditions in a building or room. Remediation is relatively cheaper and more straightforward than mold removal that requires a lot of manhours and preparation.
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Contact Us For Attic Mold Removal
When a mold infestation seizes your residential or business property, consult a reputable mold remediation company, such as ServiceMaster Disaster Restoration and Recovery. Our experienced technicians will promptly arrive on site, assess the extent of mold growth, and prepare an effective mold remediation plan.
Our skilled mold specialists utilize advanced equipment to detect hidden mold growth. Spores can flourish in concealed areas, like behind the walls. Using an InstaScope mold detection instrument, ServiceMaster DRR crews are able to determine airborne mold levels inside the home or commercial space.
ServiceMaster DRR will return your property to safe and habitable conditions. We are able to handle both small jobs and larger ones. Mold growth should be addressed as soon as possible to prevent long-term structural damage to the property.
Residential homeowners and business owners in San Francisco and the Bay Area, California rely on ServiceMaster DRR for professional mold remediation services.
Our mold cleanup crews are available to respond to emergency mold disasters 24 hours a day, 365 days a year. Call us at
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What Effects Does Mold Have On My Health
CDC has done research on mold and has come to the conclusion that mold can result in a number of different health issues. In general, the most common symptoms of mold exposure are:
- Eye, nose, lung, and throat irritation
- Stuffy feeling in the nose
- Skin irritation
If you have asthma and are exposed, the exposure could potentially trigger an attack. People who have compromised immune systems such as the elderly and young children can end up with more serious issues like lung infections.
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Attic Mold Is Common But It Doesnt Have To Cost You Thousands
Notice that in this article there has been no mention of taking a wrecking ball to the home! Most of the time, the only area of the home that has to be treated is the attic and nowhere else.
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 its uninhabitable and beyond repair.
Attic mold is caused by moisture and mildew issues. If your attic is well ventilated and has no moisture intrusion, you wont have attic mold to deal with.
And while it will cost some money to take care of it, know that it can be taken care of, quickly and at a reasonable cost. Your local mold professional can help. Good luck!
How Much Does Mold Removal Cost
Mold spores are a part of nature and float freely in the air we all breathe. Since they are microscopic they can easily find their way into your home, office, or commercial property. At this level trace amounts of mold spores are harmless. Its when those mold spores find a warm, damp, and often porous space that they can germinate toward becoming a potentially harmful colony.
If you have noticed signs of mold in your home or office, it can be hard to identify the severity and spot every source. Furthermore, attempting to remediate a severe mold problem on your own can potentially stir up the colony, sending new mold spores and potentially harmful mycotoxins into the air. You might end up cleaning away one mold colony, only to find that youve helped the spores to spread somewhere else.
Further compounding the problem is the fact that many of the cleaning products available at the consumer level are ineffective for long-term mold remediation. Even bleach lacks the potency to kill the microscopic roots of a mold colony once it embeds itself deep in a porous structure.
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Pricing Guide: How Much Does Mold Remediation Cost
Mold remediation costs an average of $2,347, with most homeowners paying between $1,373 and $3,325 or between $13.33 and $28.33 per square foot. Small-scale mold remediation projects average around $458, while the average cost for large-scale mold remediation is $6,333. If the moldy area is less than 10 square feet, you can save some cash and remove it yourself.
Mold remediation involves removing mold colonies from surfaces inside your home. Your pro will remove the colony, return the area to a normal humidity level, and repair and replace structural materials. In most cases, a pro will also remedy the underlying cause of the mold, such as a leak.
Total costs will vary depending on the mold colonys location, size, and damage. If you want to correct a roof leak or waterproof your basement out of concern for future mold growth, our pricing guide has those costs covered as well.
What A Mold Remediation Professional Will Do
Mold remediation companies will clean up your mold in a few days if just some washing and removing carpet is involved, or in a few weeks if demolition and rebuilding is required.
Generally, the cleanup process entails:
- Removing water-damaged, mold-infested materials.
- Cleaning and disinfecting walls, carpet, and personal items.
- Removing drywall and studs if mold damage is extensive.
- Vacuuming with HEPA filtration.
If mold infestation is severe and you are mold-sensitive, you may have to live elsewhere during cleanup.
Remediation costs vary depending on how much and where mold exists. Figure on:
- $500 to $4,000 to remove mold from crawlspaces only.
- $2,000 to $6,000 to remove mold from ducts, crawl spaces, walls, and attics.
- $10,000 to $30,000 to repair widespread structural damage.
Mold remediation isnt about ‘kill, kill, kill,’ says Wane A. Baker, a Wisconsin mold investigator. Even dead mold can still be allergenic.
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How Dangerous Is Mold
Indoor mold including black mold can cause health problems, especially for those who have a mold allergy, a respiratory illness or a compromised immune system. Airborne mold spores are the culprit for most mold-related health issues.
Symptoms in people in good health may include coughing and wheezing, a sore throat or other upper respiratory tract systems, while the presence of mold exacerbates symptoms in people with asthma.
Possible symptoms from mold exposure and/or mold allergy:
- Coughing and wheezing
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What Causes Mould And How Can I Stop It
The most common cause of mould in the home is damp from condensation or a combination of high humidity and poor ventilation.
Black mould is often found in bathrooms, around windows and behind furniture. Bathrooms have high humidity and are often home to damp towels that hold moisture.
Mould forms around windows because they are the coldest point in the room and condensation builds up around them. Mould on ceilings often appears near the edges, where insulation is lacking.
Black mould on walls often develops behind large or fixed pieces of furniture, where airflow is limited.
If you want a truly mould free home then cleaning off the mould is only the first step.
Anti-mildew paint can be applied to a clean area to discourage future growth but it cannot prevent the build-up of condensation. There is only one sure-fire way to stop mould from ever coming back: find the cause and fix it.
Mould thrives in a humid environment so the simplest way to prevent regrowth is to ensure that there is no damp in your home.
Use extractor fans in the kitchen and bathroom, avoid drying clothes indoors, and open the windows to air the house whenever you can. Adequate ventilation will prevent the build-up of damp.
Check your insulation. Cold spots on the walls and ceilings encourage condensation so make sure that your insulation is doing its job!
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Potential Health Risks Of Attic Mold
The assumption that mold in the attic cannot harm you couldnt be further from the truth. Besides compromising the structural soundness of your home and endangering your safety, attic mold can lead to symptoms that range from being uncomfortable and annoying to being chronic and life threatening.
Depending on the species of mold invading your attic, you may experience mild allergies like a runny nose, itchy eyes, coughing and sneezing or severe conditions like worsened asthma, fatigue, confusion, memory loss, problems with your nervous system and even cancer.
The bottom line is that mold in your home should never be taken lightly no matter where its growingyour attic, bathroom, basement, or bedroom. If its in your home, its got to go!