ABSTRACT
This chapter details cavity wall construction and provides both good and bad examples of how it is handled on site. Modern cavity wall construction has adapted to include insulation into the cavity to increase thermal performance to mixed success. Cavity wall construction is insulated in three main ways (Partial fill, Full fill, and Blown insulation) depending on various factors, including its level of exposure to rain. A partial filled cavity will generally be more effective at keeping the inner leaf dry in areas subject to wind-driven rain. Despite the difficulties illustrated in the previous page, cavity wall construction can achieve sufficient thermal performance with good practice detailing and installation. The heat flow demonstrates the performance of the junction and the different materials. The construction surrounding the door must be thermally broken and made airtight to the door frame. The temperature factor indicates the internal surface temperature and condensation potential.
