“Often imitated but never duplicated” is a phrase that has been muttered for years. When it applies to building panels, with products like eSIPs, in a way I’m glad.
Why am I glad about half-hearted imitations of true SIPs? Well, for one, it shows that SIPs are worth trying to emulate. It’s proof that they’re finally gaining recognition for their superior thermal performance and for being a true advancement over stick framing.
Unfortunately, imitators are usually nothing more than that…never reaching the performance level of the original. (Think tribute band.) While there’s a certain novelty in product imitations, the phrase “you get what you pay for” generally applies. According to the Structural Insulated Panel Association, SIPs consist of an insulating foam core sandwiched between two structural facings, typically oriented strand board (OSB). No studs, so no air leaks. Any variation is just that: an alteration of the original.
If you want the best energy-saving performance, only true SIP panels deliver. Anything else is just seconds.