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Isaac Homes
A Division of
E-Quiver, Inc.
5265 Gender Rd.
Canal Winchester, OH  43110

Phone: 614-834-9350

Fax: 614-834-9360

Structural Insulated Panels

What are Structural Insulated Panels or SIPs?

SIPs are high-performance building panels for floors, walls and roofs in residential and commercial buildings. Each panel is typically made using expanded polystyrene (EPS), or polyisocyanurate rigid foam insulation sandwiched between two structural skins of oriented strand board (OSB), but other surfaces are also available to meet your needs. The result is a building system that is very strong, predictable, energy efficient, and cost effective.

Key Benefits and Articles

• SIPs homes outperform others:
       SIP buildings are vastly more energy efficient, stronger, quieter, and more draft free than other building systems, such as stud framing with fiberglass insulation. Fiberglass is sometimes used for furnace filters because air moves through so freely. Rigid insulation is used as solid component insulation in almost every industry for its inherent efficiency and lack of air movement. These attributes are built right into a SIP building. Less air leakage means fewer drafts, less noise, lower energy bills, and a much more comfortable indoor environment.
       You can slash energy costs by up to 50%. Because SIPs create a tighter building envelope than conventional insulation, we can actually reduce the size of your heating and cooling equipment. That reduces costs immediately.
• SIPs is Cost Effective:
       SIPs have excellent thermal performance due to uninterrupted insulation and high insulating values per inch of foam. They provide airtight construction and excellent soundproofing because there are few penetrations in the wall. They create high R-values without the need for increasing wall thickness.
• SIPs Outperform in R-Value Test:
       A 4-inch SIP wall outperforms 2"x4" stick and batt construction, and even edges out 2"x6" construction in terms of thermal performance.  Read more about this.
• SIPs is Stronger:
  Two structural skins give panels the necessary strength to withstand axial, bending, and racking and shear loads. Manufacturers state that SIPs can be designed to withstand winds in excess of 160 mph and meet seismic Zone 4 requirements. SIPs have excellent thermal performance-manufacturers state that buyers report energy saving in excess of 50 percent.

   

How is it Installed? Four foot wide panels are generally light enough to be put in place by hand, but larger panels require lifting by a crane. Power-driven nails or staples are used as fasteners with SIPs. Special tools needed for SIPs installation include a hot wire cutter for EPS foam cores or routers for urethane/isocyanurate cores. There are several methods for joining wall panels, including a piece of 2x lumber used as a spline between members, an OSB or plywood spline inserted laterally into pre-routed grooves, a pre-manufactured, laminated, thermally broken spline, or a roll-formed steel joint. Joints are typically sealed with caulk or foam gaskets to maintain airtightness. Generally, dimensional lumber is used for top and bottom plates. Some foam is routed out to accommodate the lumber and the panels are fastened to the lumber.   Rough window openings can be pre-cut at the factory or cut on site. Usually, no additional header is required for openings less than 4 to 6 feet wide. The foam core is removed around rough openings to accommodate 2x framing installation for rigidity and to attach fasteners. Dimensional lumber is generally used for top and bottom plates. To accommodate electrical wiring, panels are typically equipped with horizontal and vertical wiring chases formed in the foam. SIPs accommodate all types of interior and exterior finishing materials.

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