Uniformly distributed load

Tests on a 4m single span of 150mm thickness SIP Build SIPs showed ultimate failure at 18KN/m². Assuming serviceability deflection at a nominal L/200 the the load for the 4m span was 2kN/m². It is therefore the deflection of the panel that routinely becomes the limiting factor in the design process. This increases user confidence knowing that safe working loads are well in excess of standard deflection limits.

• SIPs form a light and strong structure
• Excellant for in-plane loads
• SIPs buildings actually behave as thin shell structures, dispersing point loads throughout the entire surface area.

SIP Build panels have been subjected to a number of testing procedures.  These include loading the panels with a uniformly distributed load (‘U.D.L’) to measure strength and deflection between two supports, axial loads centrally and eccentrically placed, racking loads and shear and bending loads on the panel joints.

The strength of the joints between the individual panels is such that panels can be used to span over openings and be supported by the panels each side.  It easy to incorporate additional timber to support localised concentration of loading.  Routinely this is done at the joints in the panels.  However, with careful detailing, much of this can be avoided. 

SIP Build will be happy to provide guidance to structural designers.