A Guide to Sealing Façades , Windows & Doors, in Relation to Part L: 2022 Update (Surface Membranes and Tapes)

Description

Due to the more onerous implementation of Part L 2022, the CPD seeks to highlight the designer's obligations in respect of airtightness and the code of practice for the control of moisture in buildings according to BS5250.

It will give guidance on best practices concerning the tapes, membranes and sealants used to reduce unplanned air loss and the management of moisture migration through the fabric layers.

The CPD is weighted towards structures with framed and sheathed backing walls.

By the end of the CPD you should have a greater understanding of:

- The proper usage and function of sealing materials used around windows, doors and on facades

- The impact of unplanned air loss on building physics & how to meet SAP/SBEM pledges

- Available materials that meet the requirements of Approved Document B

- How to avoid common design mistakes leading to improved and compatible sealing strategies