Frequently asked questions

Answers to frequently asked questions about timber trusses


How Do Timber Trusses Work?

A truss is typically used to support the roof in a house. Because the roof is slanted and the truss must support the weight of the roof, it should be sturdy and structurally sound. The truss frame is designed so it provides support both vertically and horizontally to the roof boards.


Roof Truss system

Gang-Nail timber trusses are an economical construction method for all types of roofs. The Gang-Nail System also allows solutions to many problems associated with complex roofs.


Corrosion of Roof Truss Gusset Plates in Farm Buildings

Deterioration of metal truss gusset plates is a major concern in buildings that contain high humidity and corrosive environments. Many of these buildings show severe corrosion within 5–10 years. Normal galvanized steel plates exposed to moisture, condensation and ventilation air containing manure gases will corrode rapidly.


When Exposed to Fire Metal Truss Plate Connectors

The popularity of lightweight, metal plate connected timber truss construction is increasing due to cost effectiveness, versatility, and ease of construction. This type of construction brings many concerns to the firefighting community, since structural collapse has caused numerous injuries and fatalities in the fire service. In an attempt to determine the performance of metal plate wood truss connections during fire exposures.


Why roof trusses fail?

Truss roof system failure is the subject of many questions from fire and building officials and building owners after a structure, having a truss roof system, has failed. These questions are often asked after a fire or windstorm. The fact is that roof collapse is seldom the fault of the roof truss design or the roof truss installation alone. These events often have tragic consequences.