Breaking the mould - part V
In this fifth & final article in the series, Joseph Little compares simulations of several internal insulation options on common wall types, with worrying conclusions.

External insulation examined: the reasons why placing insulation outside makes most sense, with six example projects

An experienced timber framer with an eye for detail, Tim O'Donovan set about building a low energy stick-built home in the Cork countryside and achieved a staggering level of airtightness.
Words: Lenny Antonelli