Basement Drying >> Waterproofing A Basement Wall

Remodeling Your Home? Have You Considered Indoor Air Quality?Controlling Moisture Too much moisture in a home can lead to mold, mildew, and other biological growth. This in turn can lead to a variety of health effects ranging from more common allergic reactions, to asthma attacks, and hypersensitivity pneumonitits, for example. Excess moisture can be in the form of high relative humidity including humidity generated by people and their activities such as showers, cooking, or drying clothes. Water can also come from plumbing leaks, wet boots, or splashing around sinks. Moisture can travel with infiltrating outdoor air (or exfiltrating indoor air) through the building shell, including the foundation. In addition to health problems, high relative humidity or water that enters building cavities that is not allowed to dry quickly can lead to problems such as rot, structural damage, and Waterproofing A Basement Wall premature paint failure.

Methods to control moisture include building an energy-efficient home with proper air-sealing, proper use of vapor barriers and vapor diffusion strategies. The entire building envelope, from the foundation to the roof, should be designed to not only prevent moisture entry, but also to allow any moisture which does enter a means to escape. As mentioned above, people and their activities in a home are big sources of moisture; thus proper Waterproofing A Basement Wall ventilation is also important in order to maintain indoor humidity levels within an acceptable range. Moisture Control Techniques 1. Manage water outside the foundation walls.The ground around the home's foundation should be graded to slope down and away from the house at a rate of 1/2" to 1" per linear foot to drain surface water away from the house. Water from down spouts should be directed away from the house, discharging at least a few feet from the foundation. 

Test any underground drains with a hose to make sure they are working properly. Drains that are not working should be repaired or replaced with an elbow discharge described above. Be sure that driveways, sidewalks, and patios slope down and away from foundation walls at 1/4" per linear foot. In extreme cases, you may have to dig out around the foundation and Waterproofing A Basement Wall replace the fill with an exterior drain tile and with a good draining material such a clean gravel. Because this can be very expensive in existing homes, you should get a few opinions as to whether this is necessary. In some areas, there may not be enough room outside the dwelling to provide proper drainage - in these cases, it is often recommended that interior drain tile and a sump pump be installed to remove water from basements and crawlspaces. This also can be very expensive. 

2. Manage water inside the foundation walls and in the basement or crawl space floor.If the basement or crawl space has a dirt floor, cover it with 6 mil poly, overlapping edges by at least 12 inches. Seal any cracks or joints in the foundation wall or slab with an elastomeric caulk. Read EPA's Indoor airPLUS Construction Specifications "Moisture Control" and Technical Guidance to the Indoor airPLUS Construction Specifications. 3. Use construction techniques to control water, air movement, vapor diffusion, and condensation. Use construction methods and materials which promote the drying of building assemblies. Use construction Waterproofing A Basement Wall techniques which reduce the likelihood that warm, moist air will come in contact with cold surfaces, leading to condensation, mold growth, and rot. This includes controlling air movement and using vapor barriers on the warm side of walls and roofs. 

Proper flashing and drainage techniques should be used to keep rainwater out. There are different strategies to achieve this, and the strategies vary widely depending on the climate. For a good discussion of the approaches, consult a building manual such as the Energy Efficient Building Association's (EEBA) Builder's Guide for your climate. 4. Roofs.It is important that the roof and flashing details and construction effectively keep water out of the house. It is also important that the roof and attic design addresses the issue of moisture in the form of water vapor to avoid condensation in building cavities. There is no single strategy which will work for all houses in all climate conditions. The important Waterproofing A Basement Wall considerations are preventing movement of moisture from the warm side to the cold side of the building envelope, and managing moisture which does pass through the envelope to prevent condensation on building materials. 

5. Ensure the home is properly ventilated, with at least exhaust fans in the bathroom and kitchen and preferably a mechanical ventilation system designed to ventilate the entire house.(See the Air Conditioning Contractors of America (ACCA) Manual D and NYSERDA "Homeowner's Guide to Ventilation" for more information.) High relative humidity (RH) can lead to problems with mold, dust mites, and other biological pollutants. Using exhaust fans in the bathrooms and kitchen can remove much of the moisture that builds up from everyday activities and help to keep RH below 50%. There are exhaust fans on the market that produce little noise, an important Waterproofing A Basement Wall consideration for some people. Another benefit to using kitchen and bathroom exhaust fans is that they can also exhaust odors and pollutants from these rooms. 

These fans can be part of an active ventilation system for the entire house, and help to reduce humidity levels. Vent bathroom, kitchen, and clothes dryer/laundry room exhausts directly to the outside, not into an attic or other enclosed space. 6. Size Air-Conditioning Equipment correctly.More is not always better. Incorrectly sized equipment can lead to operational and cost problems. Oversized air conditioning systems can "short-cycle" leading to rapid cooling without reducing indoor humidity levels. This can lead to a variety of Waterproofing A Basement Wall problems associated with high relative humidity. Heat gain and heat loss should be determined for each house. The Air Conditioning Contractors of America (ACCA) provides a recognized standard procedure in the publication, Manual J®. Equipment should be sized for each individual house because even identically built homes will be affected by variations such as solar orientation and shading which affect heating and cooling loads.

Correct refrigerant charge (not under- or over-charged) and proper maintenance are also necessary for optimum performance of air conditioners. 7. Low Relative Humidity.Below 30 percent relative humidity, people can be uncomfortable and can suffer from dry mucus membranes which can lead to nosebleeds and infections. In general, low relative humidity is only a problem during the winter months, when the outside air contains very little moisture. It is this dry outside air entering the home through cracks and openings in the building shell that causes the inside air to become dry. The greater the amount of outside air which leaks into the house, the dryer the indoor air becomes. By air-sealing and using energy-efficient Waterproofing A Basement Wall construction, uncontrolled air leakage is greatly reduced, a more controlled indoor environment is created, and moisture can be maintained at acceptable levels without the use of a humidifier. Humidifiers require maintenance to avoid becoming breeding grounds for biological contaminants.

The Best Ways To Dry Out A Flooded Basement

If your house has been substantially damaged or is being substantially improved, your community’s floodplain management ordinance or law will not allow you to have a basement, as defined under the National Flood Insurance Program (NFIP). The NFIP regulations define a Basement Drying The Best Ways To Dry Out A Flooded Basement asement as   read more..

Removing The Debris From Colorado Floods

Local officials said they have had up to 90 contractors contact them in the immediate aftermath of a disaster. Some contractors travel to the disaster site and repeatedly contact local officials, encouraging officials to immediately contract with their firm. Others falsely claim to be FEMA certified  read more..

Mold Cleanup Procedures

MOLD/WATER DAMAGED MATERIALS Key Engineering Controls and Work Practices Discard all water-damaged materials, materials that are visibly coated with mold that cannot be properly cleaned, such as porous materials (e.g., carpeting, drywall, insulation), Mold Remediation Mold Cleanup Procedures and materials that have been  read more..

Radon Inspectors

Homeowners must seriously think about correcting a Radon Mitigation Radon Inspectors issue before making final plans to sell a house. This many times allows more time to correct the issue and find the most cost efficient answer. Also, the current residents and not just the buyer's residents, will benefit from the reduced   read more..

Storm Damage

Woods are a byproduct of nature showing many inconsistencies. Cross-sectional (transverse) shrinkage isn’t always uniform. The quantity of shrinkage happening parallel with progress rings (tangential directions) ranges from one and one-half to two times as much as across, or at ninety d  read more..

Cost Of Removing Vinyl Asbestos Floor Tile

Certification of individuals required; exemptions; qualifications; application; fee; renewal. (a) Except as otherwise provided in this act, no individual person shall engage in an asbestos project unless the person holds a Asbestos Abatement Cost Of Removing Vinyl Asbestos Floor Tile certificate issued by the secretary for that purpose.Â&nb  read more..

How To Dry A Moldy Wet Basement

Molds are fungi that grow best in warm, damp environments – like your flooded basement. If your home has been flooded and has been closed up for several days, you can assume it has been contaminated with Basement Drying How To Dry A Moldy Wet Basement mold. Mold and Health Some people are sensitive to molds – even dead molds. Exposure  read more..

Mold Treatment For A Flooded Basement

Because dealing with a flooded area can be dangerous, extra safety precautions should be taken.When in doubt, contact the City of Columbus Health Department.Please follow these safety tips: Because electrocution is always a danger in a flooded basement, Basement Drying Mold Treatment For A Flooded Basement wait until the water recede  read more..

Crime Scene Cleanup Job Requirements In Pennsylvan

The Crime Scene Response Section is part of the Field Services Laboratory (FSL) of the Laboratory Services Bureau (LSB) and is comprised of thirty seven (37) Crime Scene Specialists (CSSs), five (5) Crime Scene Specialist Squad (Shift) Supervisors, Crime Scene Cleanup Crime Scene Cleanup Job Requirements In Pennsylvan and one (1) Crime Scene Response Uni  read more..

After Roof Collapse

The standard provides flood, wind, and seismic resistant installation procedures. It also calls for elevating A Zone manufactured homes with the bottom of the main chassis frame beam at or above the BFE, not with the top of the floor at the BFE. How High Above the BFE Should a Building be Structural Drying After Roof Collapse&  read more..