Blog | Mold
What to Do When a Business Finds Mold Growing in Their Building
Posted by Cory Sursely on Tue, Oct 26, 2021 @ 01:00 PM
Mold spores can enter a building in a number of ways, even a commercial or public building. Additionally, spores are common in all kinds of buildings according to the cdc.org website. They can be carried in through the door, blown in through windows, vents, or heating and air conditioners. The problem happens when a source of water mixes with the spores, like from a flood, a leak, or persistent condensation.
Whenever a building owner finds mold spores growing or existing in their building, it is critical to take action to completely remove them and replace infected materials, so not to expose building users. The biggest problems that businesses face with mold is exposure making their staff or customers sick, and (if necessary to mitigate the mold) keeping their operations going. The earlier a water source is stopped, the easier it is to remove without stopping business operations. It is Wolgast Restoration’s goal to keep your staff working while we safely remove the spores by following regulatory and specialist guidelines.
Not all mold spores are harmful and a natural level of spores are present in all buildings at all times. Any areas where harmful mold has grown to more than 10 s.f. in size, the EPA recommends hiring a certified professional because a written plan by an Industrial Hygienist is mandatory at that point. They will assess the type of mold and if it is harmful, create a method for getting the area back to an acceptable level and instruct the Remediation Team on how to remediate and prevent spores from spreading. This is important so spores don’t become loose and therefore able to be inhaled by building occupants or have them take up residence on another surface. The spores make people sick with headaches, allergies, asthma attacks, or worse, which is bad for staff’s wellbeing, productivity, and attendance.
Wolgast Restoration has certified professionals that mitigate and/or clean mold spores in homes, commercial buildings, and public institutions. We work with building owners to temporarily relocate occupants, while identifying the source of the water, fixing the issue causing mold growth, following the written Indoor Air Quality procedures, wearing appropriate PPE, and using containment equipment. The professionals will use drop clothes to cover and protect contents, use containment walls when necessary to block off whole rooms/sections of the building, and also use air scrubbers to reduce dust so that the rest of the building can remain open for business operations.
Mold’s Effect on Different Industries
Old buildings aren’t as well ventilated, and in their roof’s lifetime, have most likely experienced leaks. There are many K-12 school districts out there that have original buildings built 50+ years ago, and children are more susceptible to issues with mold due to their developing lungs. Since school buildings are used daily for an extended period of time, exposure can be extensive.
Likewise in an office setting, users or staff members have prolonged exposure that could be causing headaches, active allergies, or asthma attacks. Productivity or attendance issues could result.
In healthcare office settings, the exposure may not be as prolonged, but patients could be more sensitive if their immune systems are compromised.
Restaurants could be shut down for not addressing mold issues in their kitchen, bathroom or dining room.
If an infected area is less than 10 s.f., the EPA says a trained maintenance person can handle the cleanup using appropriate PPE and equipment. It’s good to note that according to the cdc.org website, “bleach does not kill mold. To remove small-scale, less than 10 s.f. mold infestation, use a mix of household detergent and water.” Again, infestations larger than that require trained remediation professionals, like those at Wolgast Restoration and an Industrial Hygienist to work together to properly mitigate the mold without spreading the spores. Michigan business owners and home owners, please keep our 24-hour emergency hotline number for your restoration needs, 855-WOLGAST.
Topics: Mold, Water Damage in Schools
Q. What Do Spring and Basements Have in Common? A. Flooding Part II
Posted by Cory Sursely on Fri, Mar 08, 2013 @ 04:44 PM
Basement Flooding Safety & Preparedness
HOW SERIOUS IS BASEMENT FLOODING:
There are a lot of hazards associated with wet or high moisture basements. There are increased respiratory problems, harmful mold, long-term damage to the structure and equipment, personal property damage and possible decrease in house value. Not to mention the inconvenience and hard work to fix the problems. The number one inconvenience for most is the cost, which can add up to tens of thousands of dollars in damage.
IMPORTANT SAFETY ISSUES DURING A FLOOD:
Do not stand in water and reach for any electrical items. If possible, wear rubber boots and if you have to touch any electrical parts use a wood or plastic item – better still, call an electrician. Safety should always be number one in your mind with water and electricity.
Mold can set within 48 hours with standing water. There may also be sewage contamination that would also have to be considered. The faster you can remove the water and get the structure dry the less severe your loss will be. Don’t wait for approval from your insurance provider to remove the water, do what you must to remove it quickly. Take photographs and put dates and descriptions on them for your insurance company.
If the job is too big for you, please call a reputable restoration company to help get you dry and explain what must be done to protect you from further problems such as mold. Always explain what coverage you have with the restoration company as sometimes they’ll do more work than you have coverage, leaving you with a huge bill you can’t pay. Again, please discuss fully with your agent for proper coverage amounts. This will help when you have a loss and you know what you are able to pay yourself.
PROTECTING YOUR PERSONAL ITMES:
Put your personal belongings on shelves to keep out of water’s reach. Furniture with legs will help keep the water out of the material, but raise and pin the skirt if it has one. If your basement has high moisture, run a dehumidifier, especially in the summer when outside moisture is high.
Unfortunately, many people don’t realize that you are required to buy additional coverage for any water back-ups that occur in the basement and sometimes under estimate the coverage that they purchase. Roughly 22% of all residential insurance claims are from sump pump overflows and burst pipes. It’s in your best interest to thoroughly discuss this coverage with your insurance agent in determining the right coverage and discuss what may not be covered as well.
Be safe and dry in your own home. Your home is your castle – treat it that way and it will pay you back.
Part I - Don't Be Caught with a Flooded Basement This Spring
Topics: Water Damage, Flooding, Mold
Q. What Do Spring and Basements Have in Common? A. Flooding Part I
Don’t Be Caught with a Flooded Basement This Spring
Just because the snow is gone doesn’t mean you’re past the danger of a flooded basement. The ground is still frozen and in the process of thawing when the spring rains come, therefore, the ground is too saturated and/or frozen to absorb the water. The water then flows down the easiest path which is usually to your foundation wall and into your basement.
The Biggest Causes of Basement Flooding
Sump pumps can help filter water out of your basement when they’re working properly; however, there are many things that can go wrong with a sump pump at the wrong time. For instance, it can fail due to age, continuous use can burn up the motor, debris in the basin can block flow, the “check” valve fails, or the weep hole or filter can get clogged.
Other problems that can lead to flooding are from municipal infrastructure malfunctions. A sanitary sewer pipe is designed to remove wastewater from your home (i.e. toilets, sinks, floor drains, and can include your weep tiles around your foundation, etc). If excess storm water enters the sanitary sewer system, it can overload the system and send it back into your house (usually if the fixtures or drains are below the surcharge level). The same thing can happen with a storm sewer that’s usually larger than the sanitary sewer, but designed to carry larger amounts of flow.
Your landscaping can also contribute to a flooded basement. When the ground around your foundation slopes toward the house, the rainwater naturally flows in the sloped direction. In most cases, your weeping tiles will carry the water away without issue, but at some point the water could overload the system and find its way into the foundation walls. The same goes for window wells, so slope away from them, too.
Another cause could be your eaves troughs and downspouts. Do your downspouts extend at least 6’ away from your foundation wall? If not, the water could overload your weeping tiles. Are they still plugged from fall with pine needles or leaves? Do you see water over flowing from the gutter in the center of your house?
When you have an unexplained flooding problem, start first at the eaves troughs and downspouts, and then look at your landscaping and foundation drainage, then to sewer/sanitary drains and finally, the interior plumbing.
1) Keep the gutters and downspouts clean of debris, check for cracks (especially at the connections). Have the downspouts out 6’ from your foundation. If they still spill over in heavy rains replace them with a larger size.
2) The ground around your home settles and can slope towards your foundation, fill it in and grade the lot so it slopes away from the house at least 6’.
3) It’s difficult to determine whether you have weeping tile problems, but if the source of the water can’t be found it’s probably time to hire a company with a camera to snake the drains and see if you have a crushed tile or plug. This would also determine if this is in the sanitary or storm drain. (Usually if water or sewer is coming up through your drains in the floor or through a basement shower drain this is external backup).
4) Last, but not least, the Sump Pump. Make sure the discharge pipe is free of debris and discharged out into your property where it can be absorbed, such as your lawn or garden. Next, make sure the pit is cleaned each year as the weeping tiles can carry small amounts of sand or debris into the pit. Check and test your pump each spring (can check by pouring water into the pit until the pump kicks on). Remove and clean the pump once a year. Always disconnect the power source before working on the pump. Check once a month for debris in the pit.
A good back up for the sump pump is a battery backup that will kick on when you lose power from a storm. There are a variety of backups and some that have an audible alarm or can call your phone to notify you of a power outage. There is also a backwater valve that prevents sewage from backing up into your basement, ask a plumbing company.
Part II - Flooding Saftey & Preparedness
Topics: Water Damage, Flooding, Mold, residential, commercial
Does Proper Attic Ventilation Prevent Ice Dams?
Posted by Rich Droste on Wed, Jan 23, 2013 @ 04:51 PM
Every once in a while in Michigan, we are known to get some snow. With our varying weather and temperatures, we are at a high risk of getting ice dams. Below are some reasons and solutions to stop Ice Dams before they start.
1) Warm air rising to the peak of the attic.
2) Cold air at the lower part of the roof (warm air rises), especially just above the eave where the temperature is about the same as outdoor air.
3) Heavy snow coverage of the roof. This acts as a layer of insulation, preventing heat loss, therefore it makes it warmer in the attic.
When all 3 of these conditions happen, ice dams can form quickly. The heat at the peak of the roof causes the snow to melt and flow to the eave. Since it is freezing at the eave, this melted water refreezes and allows the water to backup and cause ice dams. The damage includes gutter, fascia, landscaping and water infiltration under the shingles. Insulation can become wet, both exterior and interior wall cavities, drywall/paint damage and mold or mildew can form. Some extreme cases can cause ceilings to collapse.
Yes it does, especially in Michigan’s climate with snow and frigid temperatures. But, it is also needed in the summer months to keep the attic cool.
There are two main purposes of attic ventilation; to protect against damage to your structure and to reduce energy usage.
A well ventilated attic during the warmer months helps cool the attic down. During the winter it helps to reduce moisture to keep attics dry – which prevents ice dams and mold.
On a hot summer day, the sun hits the roof, travels through the sheathing and heats up the attic space. This heat radiates to the attic floor and into the adjacent living areas raising the temperature. The attic floor can have temperatures as high as 140 degrees (with only 90 degrees outside). Not only does this cost you money in trying to cool the space, but will cause damage to the roof shingles in early deterioration down the road. This can lead to water leaks and expensive roof repair and/or replacement.
In the winter, the warm air from the living areas transfers into the attic and if it isn’t released by ventilation, it can cause problems. This moist air hits cooler rafters, trusses and roof sheathing causing condensation in the form of frost or droplets falling on the materials, which in turn can cause mold and rotted structures.
1) Install proper attic ventilation. The most efficient and effective systems use ridge vents and an evenly distributed layout of intake vents.
2) Install proper attic insulation. It prevents heat loss from the living areas and diminishes the energy impact of having cold air flow through the attic.
3) If possible use waterproofing shingle underlayment (WSU) (snow & ice shield) at least 2’ above the interior wall line (would recommend 3’). Valleys should be 3’ on each side of the valley center.
REMOVING ICE DAMS:
First and foremost, be safe. Do not use an axe or ice pick as this can cause bodily injury and/or roof damage. After a good snow fall, remove the snow off the roof with a roof rake. Use a good rake that has wheels at the bottom of the rake to prevent roof damage.
Our recommendation: If it is not safe or is too hard to do, use a professional.
Topics: Water Damage, Mold, roof damage, Ice Dam