I get quite a few enquiries about boarding out or converting lofts in modern houses with trussed roof construction. Here's a good example backing up the advice I always give: Extreme caution and a structural engineer required.
https://www.labc.co.uk/news/how-get-it-right-roof-truss-alterations-check-first?utm_source=BenchmarkEmail&utm_campaign=Building_Bulletin_29_November_2016&utm_medium=email
