Crawl Space Drying >> How Do I Encapsulate And Dehumidify The Crawl Spac

This Guide for Home Energy Raters presents Guide Details that serve as a visual reference for each of the line items in the Water Management System Builder Checklist. How Do I Encapsulate And Dehumidify The Crawl Spac The details are great tools for Rater education and will help Raters answer contractor and subcontractor questions. 

Together, the Water Management System Builder Checklist and these Guide Details provide a comprehensive process for ensuring that building professionals meet all aspects of the ENERGY STAR V3 requirements. How Do I Encapsulate And Dehumidify The Crawl Spac This page illustrates what Raters will see throughout this Guide on every odd page. 

The specifications in this checklist are designed to help improve moisture control in new homes compared with homes built to minimum code. however, these features alone cannot prevent all moisture problems. How Do I Encapsulate And Dehumidify The Crawl Spac For example, leaky pipes or overflowing sinks or baths can lead to moisture issues and negatively impact the performance of this checklist’s specified features. 

This checklist shall be provided by the Rater to the Builder who shall complete the checklist. Upon completion, the Builder shall return the checklist to the Rater for review. How Do I Encapsulate And Dehumidify The Crawl Spac If desired by the Builder, the Rater may verify any item on this checklist. 

A completed and signed Indoor air PLUS Verification Checklist may be submitted in lieu of the Water Management System Builder checklist. How Do I Encapsulate And Dehumidify The Crawl Spac Patio slabs, porch slabs, walks, and driveways sloped ≥ 0.25 in. per ft. away from home to edge of surface or 10 ft., whichever is less 1.2. 

Final grade is, or is scheduled by builder to be, sloped ≥ 0.5 in. per ft. away from home for ≥ 10 ft. and back-ill tamped to prevent settling 1.3. How Do I Encapsulate And Dehumidify The Crawl Spac Capillary break beneath all slabs (e.g., slab on grade, basement slab) except crawlspace slabs using either: 1.3.1. 4 in. bed of ≥ 0.5 in. clean aggregate covered with ≥ 6 mil polyethylene sheeting lapped 6-12 in. 

OR ≥ 1” extruded polystyrene insulation with taped joints, in direct contact with concrete slab above, or 1.3.2. 4 in. uniform layer of sand overlaid with geotextile drainage matting and covered with sheeting OR ≥ 1” extruded polystyrene insulation with taped joints 1.4 How Do I Encapsulate And Dehumidify The Crawl Spac. Capillary break for all crawlspace floors using either: 1.4.1. 

Concrete slab over ≥ 6 mil polyethylene sheeting, lapped 6-12 in., or 6 mil polyethylene sheeting, lapped 6-12 in. and either a) lapped up each wall or pier far enough to be fastened with furring strips or equivalent, or b) secured in the ground at the perimeter using stakes 1.5 How Do I Encapsulate And Dehumidify The Crawl Spac. Exterior surface of below-grade walls finished as follows: 

For poured concrete, concrete masonry, and insulated concrete forms, finish with damp-proofing coating. How Do I Encapsulate And Dehumidify The Crawl Spac For wood framed walls, finish with polyethylene and adhesive or other equivalent waterproofing 1.6. Class 1 vapor retarders not installed on the interior side of air permeable insulation in exterior below-grade walls.

Sump pump covers mechanically attached with full gasket seal or equivalent 1.8. Drain tile surrounded with clean gravel and fabric filter. How Do I Encapsulate And Dehumidify The Crawl Spac Patio slabs, porch slabs, walks, and driveways sloped ≥ 0.25 in. per ft. away from home to edge of surface, or 10 ft., whichever is less Slope all patio slabs, walks, and driveways away from the house at least 0.25 in. per ft. either: A. 

The length of the slab. B. 10 ft. If setbacks  limit the space to less than 10 ft., install either: C. Swales.  How Do I Encapsulate And Dehumidify The Crawl Spac Drains designed to carry water away from the foundation. final grade is, or is scheduled by builder to be, sloped ≥ 0.5 in. per ft. away from home for ≥ 10 ft. and back-ill tamped to prevent settlings E. 

Slope final grade away from the house at least 0.5 in. per ft. for 10 ft. F How Do I Encapsulate And Dehumidify The Crawl Spac Back-ill tamp to prevent settling. If setbacks limit the space to less than 10 ft., install either: G. Swales. H. Drains designed to carry water away from the foundation. 

Swales are typically vegetated, trapezoidal channels, which receive and convey storm water lows. The swale not only aids in storm water lows, but also removes pollutants through vegetation. How Do I Encapsulate And Dehumidify The Crawl Spac With the selection of correct planting materials, swales can be an attractive alternative both visually and monetarily. 

Back-ill tamping is not required if proper drainage can be achieved using non-settling compact soils, as determined by a certified hydrologist, soil scientist, or engineer. How Do I Encapsulate And Dehumidify The Crawl Spac To find out more information and the best plants to use, it is best to contact a local cooperative extension program based at land grant universities. 

For a list of cooperative extension programs across the nation. Where setbacks limit space to less than 10 ft., swales or drains designed to carry water from foundation shall be provided. How Do I Encapsulate And Dehumidify The Crawl Spac Backfill tamping is not required if proper drainage can be achieved using non-settling compact soils, as determined by a certified hydrologist, soil scientist, or engineer. 

4 in. bed of ≥ 0.5 in. clean aggregate covered with ≥ 6 mil polyethylene sheeting lapped 6-12 in. or ≥ 1" extruded polystyrene insulation with taped joints, in direct contact with concrete slab above * A. Install a 4 in. bed of at least 0.5 in. clean aggregate. How Do I Encapsulate And Dehumidify The Crawl Spac Cover entire area with at least a 6 mil polyethylene sheeting and overlap the sheeting at least 6-12 in. C. 

If not using polyethylene sheeting, install at least 1 in. extruded polystyrene insulation to be in contact with the slab and tape all joints. How Do I Encapsulate And Dehumidify The Crawl Spac Polyethylene sheeting is not required in Dry (B) climates as shown in 2009 IECC Figure 301.1 and Table 301.1, except in U.S. EPA Zone 1 Radon areas. 

Polyethylene sheeting is also not required for raised pier foundations with no walls. How Do I Encapsulate And Dehumidify The Crawl Spac In areas with free-draining soils, identiied as Group 1 in the IRC by a certified hydrologist, soil scientist, or engineer through a site visit, a gravel layer or geotextile matting is not required. 

EPA recommends, but does not require, radon-resistant features for homes built in EPA Radon Zones 1, 2 and 3. How Do I Encapsulate And Dehumidify The Crawl Spac Polyethylene sheeting is not required in Dry (B) climates as shown in 2009 IECC Figure 301.1 and Table 301.1, except in U.S. EPA Zone 1 Radon areas. Polyethylene sheeting is also not required for raised pier foundations with no walls. 

In areas with free-draining soils, identified as Group 1 in the IRC by a certified hydrologist, soil scientist, or engineer through a site visit, a gravel layer or geotextile matting is not required. How Do I Encapsulate And Dehumidify The Crawl Spac EPA recommends, but does not require, radon-resistant features for homes built in EPA Radon Zones 1, 2 and 3.

FEMA Map

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