Structural I, also referred to as “STRUC I,” may be OSB or plywood and is, essentially, a subcategory of APA Rated Sheathing. Panels designated Structural I must meet all of the manufacturing and ...

If you’re planning a self build or extension project and researching build options, there’s a good chance you’ve come across structural insulated panels, also known as SIPs. This build method has ...

If you read any of the magazine case studies about high-performance self-builds, Structural Insulated Panels, better known as SIPs, tend to crop up. They’re often associated with new-build houses, but ...