7. GREENCRAFT BUILDERS COLLEYVILLE HOUSE, COLLEYVILLE, TX

BA-0911: Prototype House Evaluations--Greencraft Builders Colleyville House

7. GREENCRAFT BUILDERS COLLEYVILLE HOUSE, COLLEYVILLE, TX

7.1 Executive Summary

Gate 2 - Prototype: Colleyville House, Greencraft Builders, Dallas, TX

Overview

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Key Results

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Gate Status

Table 7.1-1: Stage Gate Status Summary

"Must Meet" Gate Criteria Source Energy Savings

Status Pass

Prescriptive-Based Code Approval

Quality Control Requirements

Pass Pass

"Should Meet" Gate Criteria Neutral Cost Target

Status Pass

Quality Control Integration Pass

Gaps Analysis

Pass

Summary

The Colleyville house meets the 50% minimum source energy savings threshold as defined by the 2009 Building America Benchmark.

The Colleyville House meets the local building code ? 2003 IBC.

Greencraft maintains quality control through constant communication and onsite reviews by the builder and the architect. Detailed drawing sets from the architect and documented specifications from BSC augments the quality service that Greencraft provides.

Summary

This home exceeds the neutral cost target when the cost of improvements is financed as part of a 30 year mortgage. This annual amortized cost is less than the energy savings of the homes compared to the BA Benchmark. Quality control is specified by documents between Greencraft and Building Science Corporation.

BSC and Greencraft attempted to integrate XPS insulation on the slab edge but were unable to. Greencraft will try to include this and other characteristics in future homes.

Conclusions

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BA-0911: Prototype House Evaluations--Greencraft Builders Colleyville House

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BA-0911: Prototype House Evaluations--Greencraft Builders Colleyville House

7.2 Introduction

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Figure 7.2-1: Colleyville House ? 2009 Greencraft Prototype House

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BA-0911: Prototype House Evaluations--Greencraft Builders Colleyville House

7.2.2. Project Information Summary Sheet

PROJECT SUMMARY Company Company Profile

Contact Information

Company Type Address City, State Climate Region

GreenCraft Builders L.L.C.

GreenCraft Builders L.L.C. is the culmination of more than 30 years of experience building and remodeling homes in the Dallas/Fort Worth metroplex. Since 2004, Chris Miles, principal of GreenCraft, has been recognized as a leader in the North Texas green building industry, first as a producer and project manager, and now as a builder with his company, GreenCraft Builders L.L.C.

Chris Miles GreenCraft Builders L.L.C. 105 West Main Street Lewisville, TX 75057 (214) 718-8424

Custom Home Builder

1708 Oak Knoll Drive

Colleyville, TX 76034

Mixed-Humid, IECC Zone 3A

SPECIFICATIONS Number of Houses Municipal Address House Style Number of Stories Number of Bedrooms Plan Number(s) Floor Area Estimated Energy Reduction Estimated Energy Savings Estimated Cost Construction Start Construction Finish

1 1708 Oak Knoll Drive, Colleyville, TX 76034 Single Family Detached with attached garage 2 4 Arnett House 4886 ft2 70.5% over BA Benchmark $3459 annual savings $960,000 or $196/ft2 May 2008 March 2009

7.2.3. Targets and Goals

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BA-0911: Prototype House Evaluations--Greencraft Builders Colleyville House

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