phoenix building components
Phoenix Building Components

Porter Structural Insulated Panels

Phoenix Building Components is the exclusive distributor of Porter Structural Insulated Panels, sold through our ever growing Retail network of stores. If you are a Building Supply retailer and not on our list, please contact for distribution details.

Engineered Wood and Structural Insulated Panels (SIP’s) are a good choice for the environment. Wood is a renewable, recyclable, biodegradable resource that is easily manufactured into a variety of products. They also help reduce waste by decreasing disposal costs.

A 2004 Consortium for Research on Renewable Industrial Materials (CORRIM) study gave scientific validation to the strength of wood as a green building product. It was determined that wood is better for the environment than steel or concrete in terms of embodied energy, global warming potential, air emissions, water emissions and solid waste production.

Structural Insulated Panels (SIP’s) are high performance building panels used in Exterior walls, Preserved Wood Foundations, Roofs, and Floors for residential and light commercial construction. The panels are made by sandwiching a core of rigid foam insulation between two skins of structural wood panels. Once fabricated, the panels can either be supplied in stock sizes to be cut and assembled on site, or coordinated as a precut package as required to meet the appropriate design specifications for quick and easy installation. Standard panels are 4’x8’, 4’x9’, 4’x10’, 4’x12’, 4’x14’ & 4’x16’ – in 3.5”, 4.5”, 6.5”, 8.25”, 10.25”, and 12.25” thicknesses.

Exterior wall SIP’s are highly structural, acting in much the same way as a steel I-beam with the EPS foam core distributing the load evenly across the entire panel surface. In this manner, a SIP provides 3 to 7 times higher bearing values than conventional 2x stud frame construction (with 1.5” of lumber every 16” o/c to 24” o/c).

The insulating core of a SIP provides High Density continuous insulation. SIP’s enable structures to be assembled with minimal framing. The percentage of area in a wall assembly composed of sawn lumber is classified as a walls “framing factor”. The framing factor is a measure of thermal bridging. The more framing, the higher the framing factor, and the more energy is lost due to thermal bridging. A typical stick framed home averages a framing factor ranging from 15% to 25%, while a SIP home averages a framing factor of only 3%. Additionally, fiberglass and other insulating materials are subject to gaps voids, or compression leading to further degradation in thermal performance.

The US Department of Energy’s – Oak Ridge National Laboratory has shown a SIP structure to have 90% less air leakage than it’s stick framed counterpart, with air infiltration rates as low as 0.03 Air Changes per Hour. This translates into a reduction in annual energy usage by over 50%.