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Condition Your Crawlspace Thanks for visiting our Crawlspace Web Page. We have converted hundreds of foundation vented crawlspaces into conditioned crawlspaces in Maryland, Delaware, and Pennsylvania. We are a family owned and operated company founded in 1921. With more than 85 years of experience, you can be assured of reliable, expert service. Beware of Copycats There are copycat firms out there who sell a cheaper, less effective product. The Cleanspace® product is guaranteed for 25 years. Make sure you verify that your contractor is a licensed Cleanspace® Dealer before getting a price. Call for a free estimate or to speak to one of our environmental professionals today. 
Foundation Vented CrawlspacesThis picture is pretty typical for a dirt floor, foundation vented crawlspace. Poorly drained soils and long term condensation in the crawlspace cause these conditions. The end result is wood rot, structural damage, higher energy costs, insect infestation, and poor indoor quality. For many decades, building codes and “conventional” wisdom have prescribed ventilation with outside air as the main method of moisture and mold control in crawlspaces. Bad idea, especially in homes, condos and townhouses built in resort areas where the spring and summer outdoor humidity can approach 100%. Over the past several years, many builders have quietly switched over to constructing vent-less "conditioned crawlspaces". 
Conditioned CrawlspacesThis picture shows the crawlspace after it has been encapsulated and conditioned. Debris and sharp objects are removed from the crawlspace floor. The foundation vents are sealed and a 20 mil thick reinforced plastic liner is mechanically attached the walls and floor of the crawlspace. Any water coming into crawlspace now flows underneath the liner to a drainage and sump pump system. Styrofoam insulation is attached to the walls of the crawlspace underneath the liner and conditioned air is supplied to the crawlspace to prevent condensation. Options include the encapsulation of the floor joists and subfloor with a moisture and mold resistant sealer, the installation of a dehumidifier and remote humidistat to monitor crawlspace relative humidity, and a battery powered back-up sump pump.  Closing and sealing the foundation vents will take care of condensation problems however many homes with crawlspaces, especially those built near estuaries, usually have poorly drained soils and a high groundwater table. Under these conditions, soil moisture readily evaporates and condenses on the insulation. Wooden floor joists and support beams become covered with mold and wood rot. It is typical to see a crawlspace with a 6 mil thick plastic vapor barrier on the soil surface. The barrier quickly becomes ineffective as soon as a repair man crawls on it and rumples it. Before we put the Cleanspace® liner in, we install a subsurface perimeter drain system inside the crawlspace. The drainage system includes a sump pump which discharges water away from the crawlspace. The sump pump is available with a battery back-up system in case of power failure and an audible alarm if the sump pump fails.  The presence of moisture and mold in a crawlspace can cause indoor air quality problems inside the home. A study by Duke University has shown that mold in the crawlspace adversely affects the health of the home’s occupants. It is very important, especially for families with small children or asthmatic family members, to make sure the crawlspace beneath their home is not a reservoir for mold growth. Eliminating the moisture problem by conditioning the crawlspace is the solution. For existing mold problems, we use a variety of remediation methods including HEPA sanding and the application of mold and moisture resistant sealers to the floor joists and subfloor. We are Council Certified Mold Remediators, American Indoor Air Quality Council. 
Your home is the most important investment you will make. Wood rot on crawlspace floor joists or support beams can cost tens of thousands of dollars in repair and/or replacement costs. These conditions can also delay the sale home of your home and decrease its market value. Benefits of the Cleanspace® Crawlspace Encapsulation System®
Need to see some independent third party technical data: See Advanced Energy If you would like to speak with a crawlspace, moisture and mold specialist in Maryland, Delaware, or Pennsylvania, please call the office nearest you. You may also email us for additional information. All information is treated in the strictest of confidence.
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