Opposite to the traditional timber joist, an I-Joist is a specially engineered wood joist designed to overcome the natural flaws of the conventional ones. In this case, the joist are “I” shaped and are sturdy yet lightweight.
Advantages
The I-joists are manufactured under certain standards to eliminate the imperfections of a natural timber material. They are constructed in two parts, the web, which is sandwiched between two flanges, creating the “I” shape.
Their performance and tolerance are outstanding in relation to their size and weight. They allow to achieve more significant spans along with reduced bounce and deflection issues and their lightweight design facilitates drilling for the installation of cables, ducting and pipes.
Thanks to all these features they are increasingly popular as a contemporary alternative to the traditional solid timber design.
Ricoman’s Core Downlight is compatible with I-joist ceilings.