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National Green Building Standard

SIPS.org is making a free pdf copy of the NAHB's - 2015 Edition National Green Building Standard (NGBS): ICC/ASHRAE 700-2015 available.
(posted 21Jun2016)


This is the first residential green building standard to undergo the full consensus process and receive approval from American Ntl Standards Inst. (ANSI).  NAHB, International Code Council (ICC) and a new partner (ASHRAE) all worked together to provide technical guidance for the development of this nationally recognized 3rd edition. It is important to note that LEED-Homes is not a 3rd party based consensus standard. 

SIPA is providing this free PDF copy on our website.  Jack Armstrong, Executive Director of SIPA, sat on one of the committees reviewing this update. Click here to view the pdf file



In 2007, the National Association of Homebuilders and the International Code Council partnered to establish the ICC 700 National Green BuildingStandard. Certified by the American National Standards Institute, this comprehensive green building program covers single-family homes, multifamily homes, residential remodeling projects and land development. An online scoring tool is available at www.nahbgreen.org.

Resource Efficiency

601.5: Prefabricated components – Maximum 12 points

SIPs qualify as a panelized building system. Four points will be awarded for each system used (walls, roof, floor).

606.2: Wood-based products – Maximum 4 points

If the SIPs used in the project are made of OSB certified under an approved forestry certification program, builders will receive points for using certified wood materials.

607.1: Resource-efficient materials – 3 points

SIPs use engineered wood products to achieve equal or better structural performance with fewer natural resources.

609.1: Life cycle analysis – 3 points

SIPs are eligible for three points if they are selected using an ISO 14044 compliant Life CycleAssessment (LCA) tool. LCA conducted on SIP homes demonstrates that by improving energy efficiency, SIPs have a positive environmental impact over their product life cycle.

Energy Efficiency


702.2: Energy cost performance levels – Maximum 120 points

Under the Performance Path, the home is awarded points based on overall energy performance, as determined by an accredited energy rater. Homes must be 60% more efficient than the 2006 IECC to receive the full 120 points.


703.1.1: Building envelope – Maximum 35 points

The solid foam core of a SIP delivers continuous insulation and is available in a variety of thicknesses to help builders increase their building envelope performance.

703.1.2.1: Grade 1 insulation installation – 15 points

SIPs are deemed to provide Grade 1 insulation installation in the Chapter 7 Appendix.

703.2.1.1: Insulation and air sealing – Maximum 15 points

SIPs qualify as a complete air barrier if all interfaces and penetrations are properly sealed.

704.4.4: Ducts – 12 points

If a complete SIP building envelope is used, all ductwork will be located in conditioned space.

704.6.2.1: Installation and performance verification – Maximum 15 points

The builder can earn up to 15 points if a blower door test is conducted by a third party inspector. SIP homes routinely test below 1 ACH50, earning the maximum 15 points.

Indoor Environmental Quality

901.4.5: Wood materials – 4 points

SIPs use OSB structural panels that meet indoor air quality requirements for this credit. All other wood structural panels used on the home must be compliant to earn the credit.

901.11: Insulation – 4 points

The foam insulation used in SIPs meets the indoor air quality standards of this credit. Four points are awarded if qualifying insulation is used in the walls, roof and floor of the home.

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