Basement Drying >> How To Keep Mold Out Of A Wet Basement

Damp Basement
Diagnosis: The source of your problem could be a water leak or high humidity. Both can lead to mold, mildew, or other biological growth. Depending on the severity, conditions can lead to rot, structural damage, premature paint failure, and a variety of health problems. Water can seep into your house from the outside through a leak in the How To Keep Mold Out Of A Wet Basement foundation, or small gaps around windows or doors. Water can also come from inside your house How To Keep Mold Out Of A Wet Basement from a leaking water pipe, toilet, shower or bathtub. High indoor humidity caused by normal activities of everyday living, such as showering, cooking, and drying clothes, can also be a source of your problem. A damp basement is How To Keep Mold Out Of A Wet Basement commonly caused by moisture migrating through a concrete foundation. There may not be a sign of any leak or standing water, but the moisture evaporates, increasing indoor humidity. Another common cause is condensation on the cold concrete How To Keep Mold Out Of A Wet Basement walls and floors during humid months.
 
Prescription Checklist:
· Where How To Keep Mold Out Of A Wet Basement does the problem occur? Below a bathroom? Ceiling? Corners? Where the problem occurs can lead to what is causing the problem. If the problem is localized How To Keep Mold Out Of A Wet Basement (a spot on the ceiling, wall or corner it is possibly caused by a water leak. If the problem is in a large area, like a whole wall or room, then it might be caused by humidity.
· If you suspect a mold problem consult EPA’s Brief How To Keep Mold Out Of A Wet Basement Guide to Mold in your home for more information.
· If you plan to remodel your basement, it is important to control moisture How To Keep Mold Out Of A Wet Basement problems at the before doing anything else. Corrective actions can be relatively easily but sometimes, depending on the severity of the problem, they can be difficult and expensive.
Stop water leaks
 · If a leak is the source of your problem, have it fixed first.
· If you have standing water on the floor of your basement after a heavy rain then it is How To Keep Mold Out Of A Wet Basement likely from a leak in the foundation. Clean rain gutter and redirect downspout runoff away from the foundation. Make sure the ground around the house slopes down away from the foundation. If necessary, re-grade so the ground does slopes How To Keep Mold Out Of A Wet Basement away. If you have a sump pump, make sure it is working properly.
· If you have water stains on the ceiling or wall under or near a bathroom it could be a leak from a water pipe, toilet, bathtub or shower. Hire a plumber to How To Keep Mold Out Of A Wet Basement repair the leak.
· If the leak has caused substantial water damage or mold you will want to hire a contractor who specializes in mold remediation and water damage repairs. Reducing indoor humidity
· If your basement has How To Keep Mold Out Of A Wet Basement a dirt floor, cover the floor completely with plastic to slow down water vapor coming through the soil.
 · Use ventilation fans in kitchens and How To Keep Mold Out Of A Wet Basement baths to control moisture. Check to make sure ventilation fans venting directly outside. In some cases the vent fan may have been installed to vent into the attic or become How To Keep Mold Out Of A Wet Basement disconnected or blocked.
 · Your clothes dryer should be vented directly to the outside. Inspect the vent duct. Make sure it is attached securely to the dryer. Check that it is clear of How To Keep Mold Out Of A Wet Basement obstructions (e.g. lint). Check for holes that leak air. If vent duct is damaged replace it with a metal duct. The vent duct should be cleaned at least once a year.
The Consumer Products Safety How To Keep Mold Out Of A Wet Basement Commission additional safety tips for dryer vents .
· Ask a heating and cooling contractor to check your heating and cooling system to make sure it is How To Keep Mold Out Of A Wet Basement sized and operating properly to remove humidity. If you system is too big or the airflow incorrect your air conditioner will not remove humidity like it should. Also, ask the contractor to check your duct system for air leaks, and proper size and How To Keep Mold Out Of A Wet Basement air flow to each room. To help you find a contractor, please refer to our recommendations.
· Sealing air leaks (Home Sealing) and sealing duct air leakscan help to prevent high How To Keep Mold Out Of A Wet Basement humidity levels in your home.
 · During hot humid months, using a dehumidifier in the basement can reduce condensation on the walls. This may work better after you’ve sealed air and duct leaks to reduce the amount How To Keep Mold Out Of A Wet Basement of humid outdoor air you are bringing into the basement.
 
Ventilation for How To Keep Mold Out Of A Wet Basement Homes
In general, you should address the following issues when remodeling your home. How To Keep Mold Out Of A Wet Basement Energy Efficient Improvements
 Read about Best Practices Using Barriers to Contain Dust and other Pollutants Combustion Appliance Backdrafting
 Using Ventilation to Contain Dust and Other Pollutants
If too little outdoor How To Keep Mold Out Of A Wet Basement air enters a home, pollutants can sometimes accumulate to levels that can pose health and comfort problems. Likewise, one approach to lowering the concentrations of indoor air pollutants in your home is to increase the amount of outdoor air How To Keep Mold Out Of A Wet Basement coming in.
 
Outdoor air enters and leaves How To Keep Mold Out Of A Wet Basement a house by: infiltration, natural ventilation, and mechanical ventilation. In a process known as infiltration, outdoor air flows into the house through openings, joints, and cracks in How To Keep Mold Out Of A Wet Basement walls, floors, and ceilings, and around windows and doors (air may also move out of the house in this manner — this is called exfiltration). In natural ventilation, air moves through How To Keep Mold Out Of A Wet Basement opened windows and doors. Air movement associated with infiltration and natural ventilation is caused by air temperature differences between indoors and outdoors and by wind. Finally, there are a number of mechanical ventilation devices, How To Keep Mold Out Of A Wet Basement from exhaust (vented outdoors) fans that intermittently remove air from a single room, such as bathrooms and the kitchen, to air handling systems that use fans and duct How To Keep Mold Out Of A Wet Basement work to continuously remove indoor air and distribute filtered and conditioned outdoor air to strategic points throughout the house.
 
The rate at How To Keep Mold Out Of A Wet Basement which outdoor air replaces indoor air is described as the air exchange rate. When there is little infiltration, natural How To Keep Mold Out Of A Wet Basement ventilation, or mechanical ventilation, the air exchange rate is low and pollutant levels can increase. How To Keep Mold Out Of A Wet Basement Unless they are built with means of mechanical ventilation, homes that are designed and constructed to minimize the amount of outdoor air that can "leak" into and out of the home may have higher pollutant levels than other How To Keep Mold Out Of A Wet Basement homes.
 
 However, because some How To Keep Mold Out Of A Wet Basement weather conditions can drastically reduce the amount of outdoor air that enters a home, pollutants can build up even in homes that are normally considered "leaky." Most home How To Keep Mold Out Of A Wet Basement heating and cooling systems, including forced air heating systems, do not mechanically bring fresh How To Keep Mold Out Of A Wet Basement air into the house. Opening windows and doors, operating window or attic fans, when the How To Keep Mold Out Of A Wet Basement weather permits, or running a window air-conditioner with the vent control open increases the How To Keep Mold Out Of A Wet Basement ventilation rate.
 
 Local How To Keep Mold Out Of A Wet Basement bathroom or kitchen fans that exhaust outdoors remove contaminants, including moisture, directly How To Keep Mold Out Of A Wet Basement from the room where the fan is located and also increase the outdoor air ventilation rate. Ideally, new homes will be built to How To Keep Mold Out Of A Wet Basement minimize leakage to control energy loss, improve comfort, and minimize the transport of moisture and pollutants through the building shell. These homes should then How To Keep Mold Out Of A Wet Basement also have mechanical ventilation to remove pollutants generated in the home and provide outdoor air in a controlled How To Keep Mold Out Of A Wet Basement manner.
 
Whether a mechanical How To Keep Mold Out Of A Wet Basement ventilation system makes sense in your existing homes depends on the house, your existing heating, ventilation, and air-conditioning (HVAC) system, and the changes you have planned. How To Keep Mold Out Of A Wet Basement You should discuss this with your HVAC contractor. A local Weatherization office, or building performance contractor, might also be able to help you with this decision or point you to local experts. How much ventilation do I need? How To Keep Mold Out Of A Wet Basement The American Society of Heating, Refrigeration and Air-Conditioning Engineering, or ASHRAE at http://www.ashrae.org/ provides procedures for determining whole-house ventilation rates in its Standard 62.2, "Ventilation and Acceptable Indoor Air Quality in Low-Rise Residential Buildings". The standard also How To Keep Mold Out Of A Wet Basement provides requirements for exhaust ventilation for kitchens, bathrooms, and other point sources, such as clothes dryers and venting for How To Keep Mold Out Of A Wet Basement fuel-burning appliances

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