When Is a SIP Not a SIP?

June 20, 2012

The age-old phrase "Often imitated but never duplicated" has found its place in various contexts over the years. When it comes to constructing panels, especially with products like eSIPs, this sentiment holds true—and in this case, it's a reason for optimism.

Why should we find value in imitations of authentic SIPs? Firstly, it underscores the effectiveness and significance of SIPs. The increasing recognition of SIPs for their superior thermal performance and notable advancement over traditional stick framing becomes apparent when others attempt to imitate them.

However, imitators often fall short of the original's performance, much like a cover band compared to the real deal. While imitations may offer some novelty, the age-old saying "you get what you pay for" frequently rings true. According to the Structural Insulated Panel Association, SIPs are comprised of an insulating foam core sandwiched between two structural facings, typically oriented strand board (OSB). This design eliminates studs, thereby reducing the risk of air leaks. Any deviation from this established design is merely a variation, not an enhancement.

For instance, EPS SIPs (Expanded Polystyrene SIPs) offer approximately half the R-value compared to Thermocore SIPs. This means they provide significantly lower thermal resistance, potentially resulting in higher energy costs and a less efficient building envelope. Additionally, the polystyrene used in EPS SIPs can be a potentially harmful component due to its environmental impact and potential health risks associated with its manufacture and disposal.

For optimal energy-saving performance, only genuine SIP panels like Thermocore SIPs will suffice. Anything else would simply compromise on quality and effectiveness.