With heavy rainfall comes a tremendous amount of moisture. Leaks and condensation increase, temperatures and warm drying daylight decrease.
These are optimal conditions for mold growth, both interior and exterior. As exterior mold spores explode in number some of them are bound to settle in our indoor environments. Here’s an overview from the EPA on Mold growth in the home.
So what can you do to reduce to likelihood mold will take hold?
I have some tips to minimize the conditions conducive to mold growth and maximize you and your family’s health.
Mold needs 3 conditions for optimal growth:
- The Right temperature. Some mold species can grow at low (below 50 degrees F) and other species at high (above 90 degrees F), but most common mold species that grow indoors grow ideally at 55-85 degrees F. Unfortunately this is the optimal temperature for human comfort. So it is unlikely you can keep your home at a temperature that is inhospitable for mold growth. So we will not concentrate on that.
- An organic food source. Different species of mold like to eat different things, but they all need something organic to munch on. Many mold species love cellulose, i.e. wood and paper. These are the natural composters and when it rains these species start to eat up all the fallen branches and leaves in the forest, as well as our yards emitting millions of spores that make their way into our homes. Inside our homes molds like to eat wood. This is what “dry rot” is, fungi usually consisting of 2 species, Ascospores and Basidiospores. Other species like to eat paper, such as cardboard boxes, books, and paper backed wallboard, such as sheetrock. Pennicillium/Aspergillus and Stachybotrys (colloquially known as toxic black mold) are often found on wet or moist paper. Cladosporium, the species most often found growing on windowsills and in bathrooms, can eat a variety of Biofilms (household dust consisting of epithelial cells (dead skin cells) insect parts, pet dander, natural fibers such as cotton and linen, etc.). Some mold food sources we cannot easily remove from our home such as framing lumber and wallboard, but others we can, such as cardboard boxes.
- This is the big one and the one I will be giving tips on below. Mold needs moisture. There is a common saying in our business: “Mold is the symptom, moisture is the problem”. Mold growth either needs liquid water or high humidity. Liquid water can come from condensation on windowsills and in bathrooms, or from leaks, either internal or external. Without liquid water mold will not become active unless the humidity is high, usually 60-80% RH depending on the species. When the humidity is high enough, mold can become active and grow by absorbing moisture directly from the air.
Here are some tips to reduce both food sources and moisture in your home and thus reduce the likelihood and amount of mold that may grow inside your home:
Let’s start outside. When it rains water can easily enter what we call the “Building Envelope”. It is very important to make sure your site drainage system is clear from debris and working properly to move rain water away from your home, foundation, and crawlspace.
- Clean the roof of any leave or other debris.
- Clear gutters
- Make sure downspouts are in good repair, not clogged, and properly attached any extensions or the site drainage system.
- Make sure all property drains are clear of debris and flowing freely.
Check the “Building Envelope” for possible sites of water intrusion, i.e. leaks.
- Window and doorframes are spots where water can intrude. Check all door and window frame caulking for cracks and gaps and repair where necessary.
- Inspect the sealant around roof penetrations. Repair where necessary.
- Check building siding for cracks, peeling paint, holes, etc. Anywhere water may be able to get in.
After a heavy rain walk around the entire house and look for standing water, and clogged drains. Look inside the crawlspace and make sure there is no hidden flooding. Carefully check the inside of the house, take a close look at the ceilings, around windows and doors, and walls for small leaks. Because all big leaks start out as small leaks! Check under sinks and around tubs and toilets to make sure there are no plumbing leaks adding moisture to the interior of your home.
Assuming there are no leaks and your drainage system is working well, what other sources of moisture can address?
Inside a home the occupants can produce a tremendous amount of moisture. On average each human occupant expires (breathes) and perspires (sweats) about 2 POUNDS of water into the air a day. Pets can also add to this moisture source. During the winter we often close out windows, as it is cold out, and most residential heating systems have no way of bringing in fresh air or ventilating out moist, stale interior air. Thus interior humidity can often increase to levels above 60%, which is ideal for mold growth.
So what can we do about Mold Growth?
- Monitor interior humidity. Small, portable humidity monitors are available for around $10-15 and can be placed around the home. If RH (relative humidity) is consistently above 65%, action should be taken. Ideally, interior RH should be between 45-55% RH. Below 40% RH mucous membranes start to dry out and can cause occupant discomfort.
- Open windows when practicable to help flush out moisture and other interior contaminants. Even 1 hour a day can make a big difference, although 3-4 hours is recommended.
- Run ventilation fans in bathrooms and kitchens to help exhaust excess humidity from cooking and bathing. Run fans in bathrooms for at least 20 minutes after bathing. Timer switches can be installed on most bathroom exhaust fans and are highly recommended.
- Wipe excess condensation from windowsills. Inspect windowsills often. Do not keep curtains closed as this can trap moist, cool air and promote excessive condensation.
The above tips can help reduce moisture sources, what can do we do about reducing mold food sources?
- Do not keep books, papers, or cardboard boxes in moist areas such as attics, garages, basements or crawlspaces. Attic and crawlspaces should not be used as storage areas, but if you must store items in a garage or basement, we recommend sealed plastic bins.
- Keep areas mold likes to grow clean and dry. This means cleaning dust (biofilms) from windowsills, baseboards, and doorframes. Vacuum carpet regularly with a HEPA vacuum. The recommendation is to vacuum and sweep one day per week PER OCCUPANT, including pets!
- Check behind drapes and furniture for hidden condensation and biofilms. Allow airflow to reach these areas by opening drapes often and moving furniture a few inches from walls, especially exterior walls that can become colder and promote condensation.
Also, trust your nose, that musty smell is a sure indication of active mold growth. That musty smell is caused by microbial VOC’s, airborne chemicals that are a metabolic by-product of mold digestion.
If you think you have a hidden source of mold, call a professional Certified Microbial Investigator for a full mold inspection. Excessive interior mold can cause structural damage to your home and its contents, as well as allergic and respiratory reactions in some occupants. Take heed and be diligent, and you can survive this hopefully wet winter relatively mold-free.
At the end of the day, after work or school, we always look forward to coming home again. Our minds and hearts are attached to our homes because of the sense of belonging, comfort, and safety that it provides. Feeling safe is the state of not being exposed to danger or risk, and that is how our homes should feel, right? So, let me ask you, are you sure you are safe within your home?
You may feel that there’s nothing lurking within the corners of the rooms of your home. However, if you are setting aside the fact that there could be molds in your house, then you are getting further away from the sense of safety that your home should provide. Molds are not something you should overlook.
Molds usually appear on damp building materials and may look like stains. They can come in various colors and sizes. You may have seen some sort of spot growing in the interior of your house, and that is not something that should be ignored.
Molds can create a lot of nuisance and danger for you and your loved ones. It can give your family nasal and sinus congestion, coughs, headaches, asthma, skin irritations, and much more.
If your home is attacked by molds, you have to do something about it. Here are some signs that your house may have been infected by molds:
- Allergic reactions. If you notice that your allergies tend to react and even get worse while you’re at home, chances are there are molds growing in your house. Some allergic reactions to mold could be sore eyes, sneezing, and nasal congestion.
- Mold odors. A musty or moldy smell can be a great indicator that there are molds in your home. If you can smell mold, then you probably have mold. You should thoroughly inspect your home before it gets worse.
- Visible signs of molds. When you see greenish black spots of molds, then it’s obvious. Take action immediately.
- Water issues. If you have experienced water leakages, condensation, or past floods in your house, mold growth is likely to have occurred. If there are water stains or discoloration of the walls due to a moisture problem, there is most likely mold growing behind the material.
Your home is where your family should feel safe. If you’ve noticed the above-mentioned signs of mold growth in your house, please do not ignore it. Ignoring it might cause you bigger problems in the future.
If you want to be sure of your homes safety, contact Fun Guy Inspection and Consulting Inc. They will provide a thorough inspection of your home and you can have peace of mind.
Visit http://funguyinspections.com/ or call (866) 674-7541 now.
When most people think of “air quality,” they think of the outdoors; the smog, haze, even pollen.
But what many people don’t realize is that factors inside the home can also lead to poor air quality, causing potentially serious health risks.
10TV found out why indoor air quality tends to become more of an issue when the temperature drops.
What it really comes down to, according to Alisha Hopkins, a certified nurse practitioner with the Breathing Association, is the simple fact that when it gets colder outside, people tend to stay in their homes for longer periods at a time.
That means more exposure to all the particles, molds and bacteria inside the home.
“Your home is your safe harbor and then all of a sudden, now, it’s this area of just triggers everywhere,” Hopkins said. “So no matter where you go there’s a trigger. …We always think of the outside but we forget that our home is one of the places that we literally lay our heads down, we relax in, and if you’re relaxing in a bunch of dirt, relaxing in pet dander, the fur, that too will make our breathing that much worse.
One woman told 10TV she notices a difference in her breathing as soon as the holiday decorations come out.
“I just start to get the stuffy nose, the watery eyes and then my asthma really kicks up,” said Cindy Groeniger, vice chair for the American Lung Association local leadership board.
Groeniger has suffered from asthma since she was just 10 months old, she said.
“Every fall season it’s bad because I decorate and then you have, you know, mold or dust maybe on your decorations so I have to watch that,” Groeniger said. “Sometimes I have to increase my medicine for the holidays.”
Tips for improving indoor air quality can be simple, Hopkins said.
- Vacuum your mattresses, carpet, couches and chairs inside to get ride of dirt, particles and pet dander that could build up over the year.
- Groom pets heading into the colder months. Many pets tend to shed more in the fall but grooming them can decrease the amount of pet dander in the air.
- Use air filters and humidifiers, making sure to clean them out regularly to avoid mildew and mold buildup.
- Wipe down handles, door knobs and surfaces, keeping them free of germs. Because people tend to stay inside more through the winter, illnesses can spread easier from person to person.
- Replace furnace filters before cranking up the heat.
Fall is also a good time to make sure that furnaces are carbon monoxide-free, Hopkins said that. Double check carbon monoxide detectors in the home to make sure they are working properly.
For more information on indoor air quality, click here.
Previous photo credit: https://precondo.ca/
Knowledge about the potential benefits and possible problems of air duct cleaning is limited. Since conditions in every home are different, it is impossible to generalize about whether or not air duct cleaning in your home would be beneficial.
If no one in your household suffers from allergies or unexplained symptoms or illnesses and if, after a visual inspection of the inside of the ducts, you see no indication that your air ducts are contaminated with large deposits of dust or mold (no musty odor or visible mold growth), having your air ducts cleaned is probably unnecessary. It is normal for the return registers to get dusty as dust-laden air is pulled through the grate. This does not indicate that your air ducts are contaminated with heavy deposits of dust or debris; the registers can be easily vacuumed or removed and cleaned.
On the other hand, if family members are experiencing unusual or unexplained symptoms or illnesses that you think might be related to your home environment, you should discuss the situation with your doctor. EPA has published the following publications for guidance on identifying possible indoor air quality problems and ways to prevent or fix them.
You may consider having your air ducts cleaned simply because it seems logical that air ducts will get dirty over time and should occasionally be cleaned. While the debate about the value of periodic duct cleaning continues, no evidence suggests that such cleaning would be detrimental, provided that it is done properly.
On the other hand, if a service provider fails to follow proper duct cleaning procedures, duct cleaning can cause indoor air problems. For example, an inadequate vacuum collection system can release more dust, dirt and other contaminants than if you had left the ducts alone. A careless or inadequately trained service provider can damage your ducts or heating and cooling system, possibly increasing your heating and air conditioning costs or forcing you to undertake difficult and costly repairs or replacements.
You should consider having the air ducts in your home cleaned if:
There is substantial visible mold growth inside hard surface (e.g., sheet metal) ducts or on other components of your heating and cooling system. There are several important points to understand concerning mold detection in heating and cooling systems:
- Many sections of your heating and cooling system may not be accessible for a visible inspection, so ask the service provider to show you any mold they say exists.
- You should be aware that although a substance may look like mold, a positive determination of whether it is mold or not can be made only by an expert and may require laboratory analysis for final confirmation. For about $50, some microbiology laboratories can tell you whether a sample sent to them on a clear strip of sticky household tape is mold or simply a substance that resembles it.
- If you have insulated air ducts and the insulation gets wet or moldy it cannot be effectively cleaned and should be removed and replaced.
- If the conditions causing the mold growth in the first place are not corrected, mold growth will recur.
Ducts are infested with vermin, e.g. (rodents or insects)
Ducts are clogged with excessive amounts of dust and debris and/or particles are actually released into the home from your supply registers.
Original Article Source:https://www.epa.gov/indoor-air-quality-iaq/should-you-have-air-ducts-your-home-cleaned
As the air turns cooler and leaves drop from the trees, it’s important to keep a few important fall safety tips in mind. With proper precautions and safety awareness, your family can enjoy that crisp autumn weather while avoiding some of the dangers that come with the season.
Fire Safety Tips for Fall
When the weather turns cold most people spend more time inside their homes using fireplaces, furnaces, and heaters to keep warm. There’s nothing quite as cozy as a fire, but it presents some safety hazards. Keep these tips in mind
Service Your Furnace
Before the cold autumn and winter weather sets in, be sure to call your heating and cooling company to service your furnace. A specialist should inspect the furnace to make sure everything is in working order and that there are no leaks.
Use Fireplaces Safely
Keep that fire in its proper place by using a fireplace screen to keep sparks from flying out of the fireplace. Never leave a burning fire unattended, and make sure a fire in a fireplace is completely out before going to bed.
Use Caution with Space Heaters
A space heater can be an effective way to warm up a chilly room, but it’s essential that you read the instructions on the unit before you use it. If your space heater requires venting, make sure you have vented it to the outdoors. Never use your stove or oven to heat your home; only use space heaters that are approved for this purpose. Always allow at least three feet of empty area around space heaters.
Reconsider Leaf Burning
According to information from the Environmental Protection Agency, burning leaves produces dangerous and cancer-causing chemicals. For this reason, homeowners should avoid disposing of leaves this way. If you decide to burn leaves, wear a protective mask. Burning leaves should only be attempted far away from a house or other structures on a homeowner’s property. Always check the weather forecast before starting to burn leaves. This activity should not be attempted in windy conditions.
Exercise Candle Caution
Candles are a great way to give a room that warm glow, but they can also cause fires. According to the National Candle Association, almost 10,000 home fires start with improper candle use. Never leave candles burning if you go out or go to sleep, and keep your candles away from pets and kids.
Change Smoke Alarm Batteries
Change the batteries in your smoke alarms and carbon monoxide detectors when you turn back your clocks for Daylight Saving Time. Make sure to check the alarms with the new batteries installed. Check and replace any home fire extinguishers that have expired.
Safety Tips for Fall Driving
There’s nothing more beautiful than a fall drive, but this season brings some unique hazards for drivers. Being aware of these potential dangers can help keep you and your family safe and prevent accidents.
Be Aware of Poor Visibility
Falling leaves, while beautiful, can obscure your vision, as can rain and fog. Shorter days are part of the fall season, making it more difficult to see children playing or people walking and riding bicycles. Be aware of the limitations in your visibility, and slow down if you can’t see well. Use your dimmed headlights in bad weather with decreased visibility. If possible, try not to be on the roads when it’s hard to see.
Watch for Children
Children love to play in piles of leaves, so use extra caution where leaves are piled at curbside. In addition, the school bus will be making its rounds now that school is back in session. In addition to educating children about back-to-school safety, it’s important to stay vigilant as a driver.
Slow Down on Wet Pavement
In many areas of the country, rain is common during the autumn. If it’s raining, keep a safe distance from the car in front of you. Wet roads make it more difficult to stop. When wet leaves are on roadways, they make the pavement slippery, and it can be difficult for drivers to get good traction.
Be Prepared for Bright Sunlight
When sunrise occurs later in the morning, it can also present challenges for drivers. Have a pair of sunglasses in the vehicle to wear when the sun is bright is a good strategy. If it becomes too difficult to see because of bright sunlight or glare, a good strategy is for the driver to pull over until he or she can see again.
Watch Out for Ice
As the temperatures drop further at night, a driver will need to spend some extra time in the morning scraping frost off his or her vehicle. Shady spots on the roadway may be home to black ice, which a driver may not be aware of until his or her car starts to skid on it.
Safety Tips for Fall Boaters
According to a report from the US Coast Guard, autumn boating accidents are far more likely to be fatal than those that occur during the summer months. Although there are many more boating accidents in the summer season, boaters involved in accidents during the fall months are exposed to cold water and other weather hazards. Keep these tips in mind for safe autumn boating.
Be Prepared for Changing Weather
Since fall weather can change quickly, you should always be prepared for possible cold, windy, and wet weather even if the sun is shining. Stay closer to shore, so you can turn back if the weather changes. Bring appropriate clothing, such as warm coats, rain gear, and gloves.
Watch for Signs of Hypothermia
Small open boats combined with cold, wet weather can lead to possible hypothermia. According to the Mayo Clinic, these are a few of the signs you should know:
- Shivering or trembling
- General lack of coordination, including stumbling and dropping things
- Drowsiness, confusion, and apathy
- Mumbling and slurring of words
- Weak pulse and shallow breathing
Tell Others About Your Trip
Make sure you tell a friend or family member your boating plan and your expected return time. There are fewer boaters in the fall to help in the case of an accident or emergency.
Always Wear Life Jackets
Wearing your life jacket, while always a smart move, is even more important in the fall. If you should accidentally fall overboard, the cold water will quickly drain away your strength.
Autumn Home Maintenance Safety Tips
Fall is the time for yard clean-ups and readying your house for the cold winter ahead. Keep these safety tips in mind as you work.
Look Up Before Pruning Trees
If you have decided that your yard needs to be spruced up by trimming your trees, be sure to look up and survey the area carefully before you start. Make careful note of where power lines are located before you set up your ladder so that it is positioned away from them.
Use Caution on Ladders
Wearing appropriate footwear is important when using a ladder; shoes or boots may be wet, causing you to slip as you climb the ladder. The ladder should be positioned on a flat surface before use. Be sure that the tools you are using are specifically designed for this purpose and are in good condition before starting work.
Clean Up Fallen Leaves
Keep your driveway and walkway clear of falling leaves. Wet leaves can create a hazard for pedestrians in the fall by making sidewalks slippery. Later in the season, snow may mix with leaves to increase the risk of falling. Homeowners should mulch or rake up fallen leaves and dispose of them according to local bylaws.
Safely Enjoy the Beauty of the Season
By keeping these important fall safety tips in mind, you can be sure you are doing everything you can to protect yourself and your family from seasonal dangers. This will leave your mind free to enjoy the beauty of this glorious season.