Author: Eur Ing M. D. Beare (CARE, AKS Ward-Lister Beare Consulting Engineers)
31 July 2015
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Eur Ing M. D. Beare (CARE, AKS Ward-Lister Beare Consulting Engineers)
Structural insulated panels (SIPs) are engineered, load-carrying, timber-based panel products that can be used in walls and roofs of residential and light commercial buildings. These lightweight panels combine the structural and thermal envelope of the building; they are manufactured offsite in a factory and shipped to the construction site, offering advantages to the build programme. This panelised form of construction allows SIPs to be assembled to form highly airtight, energy-efficient building envelopes.
The concluding article in this series discusses the span-to-effective-depth method for verifying deflection limits of slabs and beams. (This article was corrected on 1 October 2015. For details, see the corrigendum published on page 37 of the October 2015 issue.)
This article focuses on the phenomenon of 'bond timbers', which were commonly built into masonry walls from the late 17th to the early 19th century. Guidance is offered to engineers who may encounter these when working on an existing building.