RIBA accredited CPD can also be accessed via iPad Apps. There are two in the series, Timber Building Material of the Future and Focus on Cladding. They can both be downloaded now from the iTunes store now.
Specifiers Guide to Timber Windows
This guide was produced by the Wood Window Alliance to help architects with the selection and specification of window frames that meet modern performance standards and offer durability to match a typical 60 year building design life.
Windows: Whole Life Cost Analysis
This authoritative Whole Life Analysis of WWA timber, modified timber and alu-clad timber windows vs PVC-U includes detailed analysis.