Structural Insulated Panel Systems

 

Building With SIPS

 

Building with SIPs creates a superior building envelope with high thermal resistance and minimal air infiltration. Oak Ridge National Laboratory(ORNL) Whole-wall R-value studies show that a 4-inch SIP wall (nominal) rated at R-14 outperforms a 2×6 stick framed wall with R-19 fiberglass insulation. ORNL blower door tests reveal that a SIP test room is 15 times more airtight than its stick framed counterpart with fiberglass insulation.

 

Up to 40% of a home’s heat loss is due to air leakage. SIPs have demonstrated amazingly low blower door test results when properly sealed. Based on the reliable performance of SIPs, ENERGY STAR chose to eliminate the required blower door test for SIP homes to meet ENERGY STAR standards.

INDOOR AIR QUALITY

 

A SIP home or commercial building allows for better control over indoor air quality because the airtight building envelope limits incoming air to controlled ventilation. Controlled ventilation filters out contaminants and allergens, and also allows for incoming air to be dehumidified, reducing the possibility for mold growth.

 

There are a variety of ventilation strategies that can employed to provide fresh air to airtight homes. These vary by climate, but most are relatively inexpensive and operate on automatic control systems without the need for homeowner action.

 

SIPs do not contain any VOCs or other harmful chemicals that can affect occupant health. The components used to make SIPs (foam, oriented strand board, and adhesive) meet some of the most stringent standards for indoor air quality.

 

EPS uses pentane, a non-CFC blowing agent that dissipates shortly after production. EPS has no offgassing and many EPS manufacturers are GREENGUARD certified SIP homes have qualified under the American Lung Association’s Health House® indoor air quality standard. The adhesives used in SIP production do not contain any measurable amounts of volatile organic compounds (VOCs) that can be harmful to occupants

Oriented strand board (OSB) does not contain urea formaldehyde adhesives and meets the world’s leading formaldehyde emissions standards, including the U.S. HUD Manufactured Housing Standard, the California Air Resources Board (CARB) Air Toxic Control Measure for Composite Wood Products and the European EN-300 Standard.

Articles

 

Download (PDF)

"About SIPs and CSIP." An overview of the structure and properties of SIPs, materials options available, the history of SIP technology, and current fabrication, use, and installation techniques. The first chapter of our report, Advanced Cementitious Structural Insulated Panels for Multistory Use.

 

Download (PDF)

"SIPS, Energy Efficient Buildings, and US Challenges in Energy and Climate Change". A presentation by Henry Kelly, President of FAS, outlining US energy use, especially in the building sector, climate change and its global impacts, and the role of advanced building technologies, specifically SIPs, in reducing building energy use and increasing energy efficiency.

 

Download (PDF)

"Engineered Design of Structural Insulated Panels." A presentation by Eric Tompos of NTA at the American Society of Civil Engineers (ASCE) 2008 Conference. This presentation provides a practical explanation of how to design and engineer buildings for SIPs and that use SIPs to their best advantage.

 

Download(PDF)

"Beyond Code Reports: Taking SIPs from Design to Construction." A presentation by Eric Tompos of NTA at the ASCE 2008 Conference.

 

SIPS Industry Starting to Heat Up

Modern SIPS Factory

 

The major components of SIPs, foam and oriented strand board (OSB) or fiber cement take less energy and raw materials to produce than other structural building systems. SIPs are also fabricated in a controlled environment, allowing for greater efficiency than site-built framing. The NAHB estimates that the construction of a 2000 sq. ft. home produces 7,000 lbs. of waste. SIPs have the ability to drastically reduce the waste generated during construction by using advanced optimization software and automated fabrication technology to ensure the most efficient use of material.

OSB is manufactured from fast growing, underutilized, and often less expensive wood species grown in carefully managed forests. The OSB production process uses small wood chips and highly automated machinery, making OSB a very efficient use of raw materials. About 85-90 percent of a log can be used to make high quality structural panels, and the remainder – bark, saw trim, and sawdust – can be converted into energy, pulp chips or bark dust.

 

EPS is a lightweight insulation composed mostly of air. Only 2% of EPS is plastic. Over the lifetime of a house, the EPS insulation used in SIPs will save many times the energy embodied in the petroleum used to make EPS (see Life Cycle Analysis for more info). It takes 24% less energy to produce EPS than fiberglass insulation of equivalent R-value. Scrap EPS generated during the manufacturing process can be recycled into new EPS products.

Join Us

 

If you would like to discuss becoming a SIPS Reseller as part of the Aufrecht Resellers Program go to "Contact US" fill out the form and submit. Be sure to include "SIPS" in the comments section.

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