Using SIPs can cut energy consumption by as much as 60% making SIP homes Energy Star Certified.
Energy Star Homes:
• Save homeowners money on utility bills
• Typically have higher appraised value
• Qualify for energy-efficient mortgages and tax credits
• Are usually more durable and comfortable than standard homes
ICC & NAHB GREEN | UP TO 205 POINTS POSSIBLE FOR USING SIPS |
---|---|
EMERALD | 697 Points |
GOLD | 558 Points |
SILVER | 446 Points |
BRONZE | 222 Points |
A LEED project validates environmental achievement and provides verification toward federal, state and local government incentives.
The rating system is offered for both residential and commercial projects and SIPs offer a significant amount of points towards the
certification process. An overview follows.
Premier SIPs have been incorporated in buildings receiving green ratings under the following certified programs:
SIPS Meet Green Standards
As warm air rises and cold air sinks in a conventionally framed wall cavity, a
natural phenomenon called thermal or convective looping occurs, wasting valuable energy. Unless the insulation is a solid material to stop this air movement, it doesn’t matter what the insulation’s R-value is. What good is insulation if heatcarrying air can flow through it and the cavities in the wall? SIPs’ solid insulation core helps eliminate this.
SIPs consist of an insulating, expanded polystyrene (EPS) foam core laminated between two sheets of oriented strand board (OSB) using a structural adhesive. This engineered system provides an extremely strong building panel that needs no additional frame or skeleton for support. Our large, pre-fabricated SIPs make the framing process faster than other building methods and enable a more airtight, well-insulated building for high energy efficiency.
SIPS Meet Energy Efficient Requirements
Structural Insulated Panels
Green building is 60% more energy efficient than standard construction, reduces air infiltration and outside pollutants, saves operating costs after completion, and qualifies projects for green certifications and tax credit programs such as Energy Star, LEED, National Green Building Standard, and Calgreen.
Developed by the Building America division of the U.S. Department of Energy, this program is dedicated to research and practices towards zero-energy construction. This rating program’s scale is based on the popular HERS (Home Energy Rating System) index – a metric used by Energy Star and the Residential Energy Services Network (RESNET). SIPs give builders an advantage in meeting this challenge.
BUILD COMPONENTS | R-VALUE |
2X6 STICK WALL WITH R-19 FIBERGLASS AND STUDS AT 24” O.C. | R-13.7 |
2X4 STICK WALL WITH R-13 FIBERGLASS AND STUDS AT 16” | R-9. |
When all of these factors are considered, it makes sense that the ORNL’s whole wall R-value tests showed the following R-values for SIP versus stick-framed buildings:
Air leaks through joints in sheathing and the inevitable gaps between lumber connections and between wood framing and the insulation. SIPs dramatically reduce air transfer within walls and roofs by minimizing these joints and by providing solid, continuous insulation across each panel’s height, width and depth. SIPs can be manufactured up to 8’x24’ without joints in the OSB, whereas typical stick-frame sheathing is typically only 4’ wide. Air can also leak through electrical and plumbing holes that are drilled in lumber studs.
When it comes to energy efficiency requirements, virtually all local, state and federal building departments
have set aggressive requirements to help lessen energy consumption and carbon footprints of homes and
commercial/public buildings. In many cases, such standards become increasingly stringent year-by-year,
with the eventual target of net-zero consumption.
SIPs are rigorously tested to meet and exceed building code standards and energy efficiency requirements,
helping them achieve some of the highest insulation/R-values (and load capacities) in the SIPs industry.
With SIPs as the foundation, the targeted performance measures below can be achieved today, providing
immediate energy efficiency savings (up to 60%) over traditional construction. So why wait?
Buildings account for 39% of the total US energy consumption and 38% of carbon dioxide emissions.
SIPS are an alternative to conventional framing as an energy-efficient option that allows you to save time, energy, environmental resources and MONEY, all while offering one of the highest performing building envelopes available today.
Endless design resources including: specifications, drafters to panelize your plans and a staffed technical center for SIPs conversion assistance
Core Thickness | SIPs R-Value @ 75• | SIPs R-Value @40• | SIPs R-Value @25• |
3-1/2” | 15 | 16 | 17 |
5-1/2" | 23 | 25 | 26 |
7-1/4" | 30 | 32 | 33 |
9-1/4" | 37 | 40 | 42 |
11-1/4" | 45 | 49 | 51 |
SIPs maintained their stated R-Value in whole wall testing:
In a study by the Department of Energy’s Oak Ridge National Laboratory, two
identical test rooms were built side by side. One stick-framed, one SIP-framed. Rooms were tested for air infiltration and the SIP room was FIFTEEN times more airtight, and more energy efficient than the stick-framed room. This alone illustrates how critical airtightness is to a building’s energy efficiency. The science behind air infiltration in framing products explains the key types of air movements and their effect on energy efficiency. The airtightness of a SIPs home has been repeatedly confirmed with blower door tests. In fact, Energy Star does not require a blower door test for SIPs homes to earn the Energy Star rating.
Leed for Home | Up to 34 Points for Uing SIPs | Leed for New Construction (Commercial) | Up to 30 Points for using SIPs |
---|---|---|---|
PLATINUM | 90-136 Points | PLATINUM | 80+ Points |
GOLD | 75-89 Points | GOLD | 60-79 Points |
SILVER | 60-74 Points | SILVER | 50-59 Points |
CERTIFIED | 45-59 Points | CERTIFIED |
Developed by the NAHB and the ICC, the ICC-700-2008 National Green Building Standard is ANSI approved and is the basis for many
other green building codes and guidelines in development. SIPs can help enable builders and homeowners to qualify for the highest
levels of point within the program.
Thermal bridging occurs where there is a continuous element (such as studs within traditionally framed walls, and stud-to-siding connections) between the cold and warm faces of a wall. These wood elements form a bridge between the inside and outside that can allow heat or cold to pass through by conduction. Simply installing R-19 batt insulation in a stick wall doesn’t mean the whole wall will have a R-19 R- value because there is still a significant amount of thermal bridging in traditionally framed stick walls. Stick-framed buildings rely on lumber at regular intervals to provide structural support. 15-25% of the shell of a stick-framed home is lumber, compared to as little as 3% in the shell of a typical SIP framed home.
Extensive testing validates that SIPs load charts and seismic design data are superior
Engineered and prefabricated product is straight and predictable
How SIPS Benefit Project Team
Under the American Clean Energy and Security Act (ACES) of 2009, the DOE is required to establish codes that achieve 30% improved savings on energy in 2011 (over the 2006 IECC Index), and 50% energy savings by 2014 for all new homes. Many states require even higher energy savings. SIPs-framed structures are already achieving up to 60% energy savings, and are the perfect enabler for those trying to achieve even greater savings. Why wait?
Can SIPs
Qualify
Requirements
Minimum R-14 wall insulation | YES – Exceed this |
Minimum R-40 roof insulation | YES – Exceed this |
Whole house air infiltration lower than 5 ACH50 | YES – Exceed this |
Air Barrier & insulation integrity inspection (A complete SIP envelope eliminates many of the Concerts for gaps in cavity insulation materials.) | YES |