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.

Asbestos Removal

Certain parts of the nation had building laws requiring garage doors to withstand high Wind Damage Asbestos Removal. You shall check with your local government building officials to see if there are law requirements for garage doors in your vicinity. Some garage doors could be strengthened with retrofit packs. Check  read more..

How To Get A Smoke Smell Out Of Ceiling Beams Afte

Do not enter the damaged site. Check with the fire department to make sure your residence is safe. Do not cut or walk past colored tape placed over doors or windows to mark damaged areas unless local authorities advise that it is safe to do so. Remember, fires can rekindle from hidden, Smoke Damage How To Get A Smoke Smell Out Of Ceiling Beams Afte smolderi  read more..

How To Remove Smoke Odor

Identification and Preparation of Cleaner Air Shelters for Protection of the Public from Wildfire Smoke 1. Identify one or more facilities with tight-sealing windows and doors and public access (for example, public schools, fire stations, or hospitals). As a rule of thumb, Odor Control How To Remove Smoke Odor newer build  read more..

How To Dispose Of Asbestos Siding In Texas

This mandatory appendix specifies the procedure for analyzing air samples for asbestos and specifies quality control procedures that must be implemented by laboratories performing the analysis. The sampling and analytical methods described below represent the elements of the available monitoringÂ&n  read more..

Securing A Fenced Perimeter

Two keys to weather safety are to prepare for the risks and to act on those preparations when alerted by emergency officials. These are essential pieces to the Weather-Ready Nation.Refer to the Federal Emergency Management Agency's (FEMA) Ready.gov/hurricanes for comprehensive Emergency Board up Securing A Fenced Perimeter information on hu  read more..

Radon In Water

radon gas can enter a home from the soil through cracks in concrete floors and walls, floor drains, sump pumps, construction joints, and tiny cracks or pores in hollow-block walls. Radon Mitigation Radon In Water levels are generally highest in basements and ground floor rooms that are in contact with the soil. Factors such   read more..

Test Your Home For Radon

Former EPA National Radon Proficiency Program Note: EPA no longer updates this information, but it may be useful as a reference or resource. Dated: July 30, 1998 RE: The National Radon Proficiency Program (RPP) Dear RPP Participant, Applicant, States, EPA Regions and Radon Mitigation Test Your Home For Radon RPP Stakeholders:  read more..

Garbage Cleanup From Wind Storm

FEMA did not approve debris plans that did not identify a DMS or disposal site. As mentioned previously, FEMA is considering revisions to its regulations to incorporate the increased federal share component of the PA Pilot Program, which would require PA applicants to identify DMS and Debris Removal Garbage Cleanup From Wind Storm final dis  read more..

How To Fix Water Problems On A Concrete Crawl Spac

A choice of whether to insulate the basement is yours, unless you have an intentional heat supply. There are several reasons for and against constructing a conditioned basement space: People often want to use basements. Even if they are not finished space, people often use basements for laundry,   read more..

Water Removal 2

Clean mold off hard surfaces with water and detergent, and dry completely. Absorbent materials such as ceiling tiles, that are moldy, may need to be replaced. Prevent Water Damage Water Removal 2 condensation: Reduce the potential for condensation on cold surfaces (i.e., windows, piping, exterior walls, roof, or flo  read more..