BW Industries - Sleeved Purlin System

The sleeved purlin system is suitable for buildings with two or more bays and utilizes single span length purlins with sleeves. The sleeves are formed from the same section as the purlins but are installed inverted. The sleeves, which achieve a high degree of continuity over the purlin supports are fitted at all penultimate rafter connections and staggered on all internal bays, allowing economy of purlin section selection. The system can be used for single span purlins and for double span purlins.