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CALIFORNIA SPECIFICS |
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CALIFORNIA SPECIFICS |
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| codes | details | installation | contacts |
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The following code information is specific to the state of California. For national codes please click here to visit our code page. |
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TITLE 24 (Excerpts from California's Title 24 in effect as of October 1, 2005- page 58) |
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2005 Building Energy Efficiency Standards & Climate Map for California |
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(g) Insulation Requirements for Heated Slab Floors. Heated slab floors must be insulated according to the requirements in TABLE 118-B. 1. Insulation materials in ground contact must: A. Comply with certification requirements of Section 118(a); B. Have a water absorption rate for the insulation material alone with out facings that is no greater than 0.3% when tested in accordance with Test Method A-24 Hour-Immersion of ASTM C272. |
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2. Insulation installation must: A. Cover the insulation with a solid guard that protects against damage from ultra violet radiation, moisture, landscaping operation, equipment maintenance, and wind; and B. Include a rigid plate, which penetrates the slab and blocks the insulation from acting as a conduit for insects from the ground to the structure above the foundation.
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| TABLE 118-B SLAB INSULATION REQUIREMENTS FOR HEATED SLAB-ON-GRADE | ||
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Insulation Location |
Insulation Orienta- tion |
Installation Requirements |
Climate Zone |
Insulation R-Factor |
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Outside edge of heated slab, either inside or outside the foundation wall |
Vertical
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From the level of the top of the slab, down 16" or to the frost line, whichever is greater. Insulation may stop at the top of the footing where this is less than the required depth. For below grade slabs, vertical insulation shall be extended from the top of the foundation wall to the bottom of the foundation (or the top of the footing) or to the frost line, whichever is greater. |
1-15 |
5 |
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16 |
10 |
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Between heated slab and outside foundation wall |
Vertical and Horizontal |
Vertical insulation from top of slab at inside edge of outside wall down to the top of the horizontal insulation. Horizontal insulation from the outside edge of the vertical insulation extending 4 feet toward the center of the slab in a direction normal to the outside of the building in plan view. |
1-15 |
5 |
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16 |
10 Vertical and 7 horizontal |
| EnerComp Performance Report- EnergyEdge & Title 24 | |
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Expert engineering analysis has confirmed the value of EnergyEdge. ENERCOMP is recognized as one of the top energy consultants in California and author of MICROPAS, a leading energy estimation software program. ENERCOMP has calculated the contributions of using EnergyEdge. Their analysis concludes that in the Northern California regions EnergyEdge is targeting, the addition of the product to a typical home should reduce heating fuel consumption 7-11%. They also calculate that these savings exceed those of other popular conservation measures, such as increasing attic insulation 30% or upgrading to a high-efficiency heat pump. Because of similar climates, these results should be comparable throughout the central latitudes of the U.S., from Northern California to the Carolinas. Experts say that savings will be even higher in more Northern climates. And when popular in-floor heating is used, energy savings will be about 20%, according to the Radiant Panel Association. Using EnergyEdge saves energy and money. |
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Click here to download a PDF of the full EnerComp report.
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The following PDF files have been selected as "California Details" For more details, please click here to visit our detail library. |
| Reference | Description | ||
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The following installation guides have been selected for typical "California" installation techniques. For more installation options please click here to visit the installation page. |
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DISTRIBUTORS: |
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Amvic Pacific Bill Juhl 530-265-9085 Nevada City, CA |
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Hydronic Specialties Company (JTG Muir) Morgan Muir 510-434-3144 Oakland, CA |
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www.EnergyEdgeForm.com |
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