Mother Earth Living

Structural Insulated Panels: Putting Up Walls

From OSB to EPS, a guide to SIPs
By Natural Home Staff
September/October 2005
Add to My MSN

SIPs build sturdy, well-insulated walls and roofs.
Photo courtesy Winter Panel
Slideshow


Content Tools

If you’re building a new home—or creating an addition—structural insulated panels (SIPs) can reduce your energy bills for decades to come, says Carl Seville, an Atlanta, Georgia, energy-efficiency and sustainability consultant. These ultra-insulating panels—made of oriented strand board (OSB) with either expanded polystyrene (EPS) or polyurethane foam sandwiched between them—usually range from four-by-eight to eight-by-twelve feet and can be used for walls and roofs. Seville gives an overview of SIPs.

PROS:

• Strong (thickness ranges from 4.5 to 12.25 inches)

• Extremely good insulation. With traditional walls, wood studs reduce insulation value. SIPs are large, solid panels that maintain a constant R-value.

• Create a better air seal than a wood-frame house. SIPs have fewer seams so there are fewer opportunities for air transfer between inside and outside.

• Quick to erect on site.

• Foam-filled SIPs are low in toxicity and are blown in using ozone- safe hydrocarbons.

• As they become more popular, they’re more readily available.

CONS:

• It may be hard to find contractors familiar with SIPs. (Issues such as installation and wiring require some previous experience.)

• SIPs are made to order, so you need very accurate measurements and careful design.

• Good for building a new home where you have control over the site, but more complicated for renovations.

• Take a minimum of two people to install.








Post a comment below.

 














Subscribe Today!

Pay Now & Save 58% Off the Cover Price

(* indicates a required item)
Canadian subs: 1 year, (includes postage & GST). Foreign subs: 1 year, . U.S. funds.
Canadian Subscribers - Click Here
Non US and Canadian Subscribers - Click Here