2. The Professional House Doctors that specialize in: Crawlspace & Basement moisture controlCrawlspace & Basement moisture control Mold & Odor RemovalMold & Odor Removal Air Duct cleaning & sealingAir Duct cleaning & sealing Chemical-free, whole house sanitizingChemical-free, whole house sanitizing Central HEPA air purification systemsCentral HEPA air purification systems

3. Importance of Crawlspace Sealing

4. Why should you seal your crawlspace? Building standards for dirt crawlspaces have changed very little for hundreds of years.Building standards for dirt crawlspaces have changed very little for hundreds of years. The earth is damp, and that moisture enters your home.The earth is damp, and that moisture enters your home. Moisture damages homes, by rotting wood, supporting mold growth, and affecting temperature control.Moisture damages homes, by rotting wood, supporting mold growth, and affecting temperature control. Moisture also is a source for attracting pests.Moisture also is a source for attracting pests.

5. Why should you seal your crawlspace? Ventilation is required by the building code of residential homes.Ventilation is required by the building code of residential homes. Warm air entering crawlspace vents is full of moisture.Warm air entering crawlspace vents is full of moisture. The damp, cool earth in your crawlspace is cool (55°).The damp, cool earth in your crawlspace is cool (55°). When moist air is cooled, vapor condenses.When moist air is cooled, vapor condenses.

6. Why should you seal your crawlspace? Mold is everywhere in the media and crawlspaces are great places for mold.Mold is everywhere in the media and crawlspaces are great places for mold. The crawlspace is not a separate environment. It is part of ONE house, just like a basement.The crawlspace is not a separate environment. It is part of ONE house, just like a basement. Homeowners are more informed about the dangers in the home and the effect on their health.Homeowners are more informed about the dangers in the home and the effect on their health. Whatever is in the crawlspace, is also in your home.Whatever is in the crawlspace, is also in your home.

7. Stack Effect - Air flow in a house Air escapes upper levels And new air enters from lower levels to replace it. What is in the crawlspace, is in the house. Up to 50% of the air we breathe upstairs, came from the crawl space!

8. Before & After Pictures of Crawlspace repair/sealing

11. Crawlspace Repair Venting of the Crawlspace – Good or Bad?

12. Vented, damp crawl spaces cost more! COLD air under your floors causes uncomfortable floors.COLD air under your floors causes uncomfortable floors. Homes with COLD floors run their heater longer, which costs more to HEAT. Homes with COLD floors run their heater longer, which costs more to HEAT. Dampness in your crawlspace adds to the dampness upstairs. Dampness in your crawlspace adds to the dampness upstairs. Damp homes are more uncomfortable, so you run the AC longer and harder, costing more money. Damp homes are more uncomfortable, so you run the AC longer and harder, costing more money.

13. Sources that Say Close the Vents US Dept of EnergyUS Dept of Energy Joe Stiburek - Esteemed Building Scientist, Building Science Corp.Joe Stiburek - Esteemed Building Scientist, Building Science Corp. Dominion Virginia PowerDominion Virginia Power Bill Rose - Building Scientist, University of IllinoisBill Rose - Building Scientist, University of Illinois Bruce Davis, Bill Warren - Building Scientist, Advanced Energy, Research Triangle Park, NC State RaleighBruce Davis, Bill Warren - Building Scientist, Advanced Energy, Research Triangle Park, NC State Raleigh Habitat for Humanity - Americus GeorgiaHabitat for Humanity - Americus Georgia Craig DeWitt PhD, PE - RLC EngineeringCraig DeWitt PhD, PE - RLC Engineering Rick Kupecki and many other Building Science ConsultantsRick Kupecki and many other Building Science Consultants

14. Before & After Pictures of Vent closing

17. MOLD

18. For mold to grow it needs… Mold sporesMold spores A food source. Organic materials – anything that was once livingA food source. Organic materials – anything that was once living Moisture. Relative Humidity over 60% or moisture content in wood of over 20%.Moisture. Relative Humidity over 60% or moisture content in wood of over 20%. Temperature range between 32° F and 100° FTemperature range between 32° F and 100° F

19. As mold remediation contractors, our philosophy… To get rid of mold, you need to get rid of water and moisture.To get rid of mold, you need to get rid of water and moisture. You need to control temperature variances.You need to control temperature variances. You need to address food sources for mold.You need to address food sources for mold. Therefore, sealing your crawlspace vents is a first step in of mold remediation.Therefore, sealing your crawlspace vents is a first step in of mold remediation.

20. Moisture in Wood Wood is considered dry at moisture content below 18%Wood is considered dry at moisture content below 18% Mold will grow when moisture content is over 20%Mold will grow when moisture content is over 20% About half the homes with crawlspaces have moisture content of over 20%About half the homes with crawlspaces have moisture content of over 20%

21. Before & After Pictures of Mold in the Crawlspace

24. 6 Ways Crawlspace Encapsulation Saves Money

25. Steps 1-3 6 Ways Crawlspace Encapsulation Saves Money - Steps 1-3 ONE - AC system operates more efficiently with less humidity in the air.ONE - AC system operates more efficiently with less humidity in the air. TWO - Stopping warm air from entering in summer decreases the demand for the AC.TWO - Stopping warm air from entering in summer decreases the demand for the AC. THREE - Condensation on cold ducts causes energy loss, requiring more demand for the heater & AC.THREE - Condensation on cold ducts causes energy loss, requiring more demand for the heater & AC.

26. Steps 4-6 6 Ways Crawlspace Encapsulation Saves Money - Steps 4-6 FOUR - Cold air entering in winter causes heat loss.FOUR - Cold air entering in winter causes heat loss. FIVE - Supply ducts leaking heat into the crawlspace is lost through crawlspace vents.FIVE - Supply ducts leaking heat into the crawlspace is lost through crawlspace vents. SIX - Encapsulation stops unconditioned air entering from the crawlspace and through walls.SIX - Encapsulation stops unconditioned air entering from the crawlspace and through walls.

27. Radon Final thoughts on basements & crawlspaces.

28. The RX4CleanAir- Radon Mitigation System 3” or 4” pipe to roof 3” or 4” pipe to roofFan

29. Pictures Of Our Teams Repairing A Crawlspace

33. More Before & After Pictures of Crawlspace Repair/Sealing

39. What’s Next… Thanks for viewing our presentation. Please contact us to schedule a complete evaluation of your home. Our knowledgeable representatives will provide you with a comprehensive overview of your home. schedule RX4CleanAir wants to provide you and your family with a healthy environment, because “CleanAir Is The Best Medicine”.

40. Contact Us To reach…To reach… –Call (888) RX4-CleanAir –Visit www.rx4cleanairllc.com www.rx4cleanairllc.com –Email info@rx4cleanairllc.com info@rx4cleanairllc.com

41. Thanks for viewing our Crawlspace Presentation At this point you have several options: – –You can click here to view our home page.click here – –You can click here to contact us for more informationclick here Again, thanks for viewing our presentation and considering RX4CleanAir for all of your home’s “Healthcare” needs.