Need answers? Here are the facts about many common concerns and queries. If your question isn't addressed here, please reach out to us ... we'd be happy to assist!
When you factor in material cost, labor expense, and job site waste with the benefit of a lifetime of energy savings, the Enercept system is a lower cost building solution.
No. Enercept SIPs were tested at the University of South Dakota and no traces of formaldehyde were detected. The panels do not produce off-gassing of dangerous chemicals either.
There are three methods of heat transfer: convection, conduction, and radiation. R-value is the measure of resistance to heat loss by conduction only. The most import factor in thermal efficiency is the continuity of the insulation. The Enercept SIPs system results in a solid envelope of insulation where even the connection posts have a foam core. Therefore, Enercept SIPs have the ability to resist heat transfer by both conduction and convection (air movement). With this in mind, it is reasonable to assume that a conventional home would require an R-40 wall to compare with a 6-inch Enercept wall (R-24.)
A ventilated roof is not necessary in most climates. Model codes allow both vented (cold roof) and non-vented (hot roof) roof assemblies. Because SIPs are insulated, conductive loss of heat is avoided, negating the problems usually associated with a non-vented roof. If you must ventilate your roof, 2x strips can be attached to the top of the roof and then covered with sheathing to form a vented layer over the SIPs.
Enercept structures are very air-tight compared to other building methods. Generally, a moisture barrier is applied to the exterior of the structure. Seam tape is provided for all interior panel connections and an air exchanger is strongly recommended. These measures will protect your home from moisture, and will create exceptional indoor air quality.
The Enercept building system has been accepted for use by HUD and is ICC/ICBO approved. Enercept SIPs have been third-party tested by independent testing agencies – RADCO and NTA, Inc. Enercept offers a limited lifetime warranty (copies available by request.)