Mitek Posi Joists Guide

Regarding fire, the steel webs are protected within the floor structure. In a standard fire resistance test, the timber chars predictably, and the floor system can achieve standard load-bearing fire resistance periods (typically 30 or 60 minutes) when boarded correctly with fire-rated plasterboard.

Floors, flat roofs, and attic conversions. mitek posi joists

In the evolution of modern construction, the demand for open-plan living spaces, complex architectural designs, and energy efficiency has rendered traditional solid timber joists increasingly obsolete. Stepping into this gap is the , a steel-web system joist that has become the industry standard for floor and roof construction in the UK and beyond. Regarding fire, the steel webs are protected within