I was looking around for some info on low energy housing and came accross this website.It is about a passive house that is currently under construction in Wales.They have a bit about the windows they are using internorm from Austria,which are available in wood,alu and uPVC.Interestingly they are active in the UK.I have just emailed them to see if they have any agents in Northern Ireland or The Republic.I'll post the reply here soon.This may be of interest to some of you guys.
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