What materials are typically used to construct SIP panels?

SIP panels, or Structural Insulated Panels, are typically constructed using rigid foam insulation sandwiched between two structural facings, commonly oriented strand board (OSB). This combination provides strong structural integrity while also offering excellent thermal insulation. The rigid foam insulation in the center serves as an effective barrier to heat transfer, which significantly improves energy efficiency in buildings.

The use of OSB as the outer layer is significant because it contributes to the overall strength and durability of the panel, allowing it to withstand various loads and stresses during and after construction. This pairing of materials makes SIP panels a popular choice in both residential and commercial construction, particularly for building envelopes that aim for high energy efficiency and low environmental impact.

Other materials, like those mentioned in the other options, do not provide the same properties or benefits that contribute to the effectiveness and popularity of SIP panels. For instance, wood veneer and glass would not deliver the structural strength required, while steel and concrete generally serve different construction purposes and are not effective for insulated panels like SIPs. Similarly, brick and mortar are traditional masonry materials that do not integrate the insulation properties required for SIP construction.