BUILDING PHYSICS 36 Fire stops in timber construction Installations of building technology are usually also led through components forming fire sections. In a research project sponsored by binderholz and Saint-Gobain Rigips Austria among others, practical construction solutions have been developed jointly with Holzforschung Austria for the use of fire stop systems in solid timber construction and the solutions have been fire-tested (see Figure 21). The brochure shows solutions for line passages of water pipes or air conditioning ducts, as well as electrical wiring in solid timber elements, and details of connecting conduits on solid timber walls and ceilings (see Figure 22). Figure 21 – Test of fire stops with Rigips solutions. The manufacturers and product names of the various fire stop systems are specified in the planning brochure. The system’s fire resistance and the boundary conditions to be observed for the installation are shown in tables. In addition, in a research project at Technical University Munich, which is supported by binderholz and other companies (development of advanced design rules/details for multi-story buildings in solid timber design of building class 4), detail catalogues have been developed that are applicable in Germany up to the building class 4. Here, too, fire tests have been conducted that support the proposed solutions (see Figure 23). Figure 22 – Planning brochure for fire stops in timber construction Source: Holzforschung Austria Figure 23 – Rigips classification: Installation of insulated tubes with an annular gap 0-10 mm
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