All Hollowcore planks are designed to the requirements of BS 8110. Standard Hollowcore planks have a minimum fire resistance of 1 hour. Units are manufactured to the following nominal depths 150mm, 200mm, 250mm, 300mm, 400mm and 500mm.
Longley Concrete Floors will provide layout drawings for the floor units prior to manufacture. These drawings show the structure supporting the precast units, position of service entries etc., typical sections and the loads for which the floor is designed.
Quality is the prime concern of designers, developers, builders and ultimately homeowners. The robustness of a concrete floor adds to the quality of a house. Concrete floors act as a thermal store, this can reduce heating costs especially when under-floor heating systems are used.
These tables are to be used for preliminary purposes only. Other factors may affect slab performance.