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SIP stands for Structural Insulated Panel. An Insulspan® SIP consists of a core of molded expanded polystyrene (EPS) insulation or graphite-enhanced polystyrene (GPS) insulation with engineered oriented strand board (OSB) laminated to the top and bottom faces. When comparing Structural Panels there are three elements to consider:
Check out our OSB FAQ Product Information Bulletin.
Expanded polystyrene (EPS), the foam insulation inside our SIPS, has no food value and will not support the growth of insects, parasites, or animal, and plant life.
The best practices for keeping pests out of your home, no matter what it is made of, is to follow basic building codes. Learn more about pest control here Product Information Bulletin 205.
It depends on the width of the panel and whether you select a core of EPS insulation or GPS insulation. View our R-value chart, and read about how R-Values compare – initially, during construction and through the life of the building. Explore R-values here.
EPS insulation and GPS insulation are inert, so they do not off-gas. These insulation materials do not contain harmful formaldehyde, unlike some other types of foam insulation. This also means that the EPS insulation will not change over time, or lose R-value, like some other types of foam, such as polyurethane.
Typically, plumbing does not go in an exterior wall since it might freeze. Your interior walls will be standard stud walls, so you don’t need to worry about SIPs and plumbing.
Insulspan places wire chases inside the panels at 14″ and 44″ above the floor and 6″ from door openings on both sides for electrical outlets and light switches. Your electrician can place boxes anywhere along the wall. You can also specify custom chases, which we will pre-cut in the SIPs during manufacturing.
One of the benefits of building with SIPs is the continuous OSB sheathing. You can mount cabinets and install shelving anywhere along the wall. And, you don’t have to worry about finding a stud when hanging pictures! To find information about the size and quantity of screws to use to ensure the weight of whatever your hanging is properly support, please reference Technical Bulletin 126.
SIP structures are very efficient, and a very sustainable building method.
Want to learn how you can reduce energy costs and gain the structural
strength of the Insulspan SIP system for your residential or commercial project?
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Insulspan is part of PFB Corporation, a publicly traded company listed on the Toronto Stock Exchange that was founded in 1968. When you work with Insulspan, rest assured that you are working with a financially stable company that produces sustainable, high-quality products through adherence to our core values of quality, service, and expertise.
INSULSPAN Structural Insulating Panel System. All rights reserved.