The Durability of Vapour Permeable Underlays in Thermally Efficient Pitched Roof Construction

Description

This presentation demonstrates the significant role that vapour permeable pitched roof underlays play in preventing harmful condensation, resisting wind driven moisture, increasing thermal efficiency by reducing wind-washing and reducing the load on the external roof covering by absorbing wind uplift under all conditions and in all 5 wind uplift zones across the UK. Also included are air and vapour control layers (AVCL) and the important part they play in modern buildings. By the end of this CPD, delegates should: 1. Understand building regulations/technical standards. 2. Understand the requirements of BS5534. 3. Understand the requirements of BS5250. 4. Understand installation techniques for different systems. 5. Understand the basics of thermally efficient pitched roof designs - VPU and AVCL. This seminar is also available online.