- Desiccant dehumidification can help dry new construction materials like fireproofing and concrete more quickly, allowing projects to stay on schedule and reducing costs and liability from moisture issues. - It works by lowering the dew point of the air, causing moisture in materials to evaporate faster, and can dry structures within a week. - American Technologies, Inc. is an expert in construction drying and offers cost-effective desiccant dehumidification solutions to help projects progress smoothly.

1. Advantages of New Construction Drying January 14, 2012

5. BASIC GROUPS OF MATERIALS WOOD ENGINEERED WOOD TILES GYPSUM/DRYWALL PLASTER/CONCRETE

6. BASIC GROUPS OF MATERIALS WOOD ENGINEERED WOOD Hardwood flooring and millwork will absorb moisture from the air and from a wet slab . Warping and bending will result if the moisture is not removed before installation.

8. Climate Control Drying purposes Desiccant dehumidification can provide warmer drier conditions for: Working personnel

14. WEATHER DATA Normal Daily Temp (F) Relative Humidity (AM) (%) Precipitation (INCHES) Dewpoint Temp (F) Los Angeles May 58 77 0.31 57 December 48 67 1.91 41 San Francisco May 51 77 0.54 44 December 47 80 3.18 43 Chicago May 51 77 2.17 46 December 24 80 2.63 20 Orlando May 66 86 3.74 64 December 53 89 2.31 52 Houston May 68 91 5.11 68 December 65 86 3.78 52

15. HEAT VS. DEHUMIDIFICATION … does not decrease moisture content but does increase the ability of air to hold moisture. … decreases RH but does not change the dewpoint. … makes it difficult to maintain a proper dewpoint spread with heaters only. … may damage coatings and produce uncomfortable work environments. … is very important for moisture movement but … … too much heat may push moisture deeper into the materials. … hot moves to cold and can cause condensation issues . HEAT…

17. HOW DESICCANT DEHUMIDIFICATION WORKS? High volume desiccant dehumidifiers exhaust extremely dry air into the construction areas. The dry air lowers the vapor pressure and dew point of the building air, causing moisture in materials to pass from levels of high pressure to low pressure. Construction materials are dried out and mold is controlled, allowing the project to proceed without moisture delays.

18. DESICCANT DEHUMIDIFIERS

19. DESICCANT WHEELS

20. CONCRETE DRYING Removing excess moisture with desiccant dehumidification .

21. COST TO DRY? A 5,500 cfm dehumidifier, in an insulated cabinet with both gas and electric reactivation costs about $60,000.00 , plus tax and shipping A 4,500 cfm dehumidifier rents for about $3,600/month COST OF DRYING OUT A BUILDING? PRICELESS! Remove the leasing option RENT PURCHASE

24. OTHER SERVICES` EMERGENCY SERVICES CONTENTS ENVIRONMENTAL (mold, asbestos, lead, and biohazard) CATASTROPHE

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