Still legal as long as the irons are no further than 1200mm apart.
This is about the best guide i know of http://www.forsterroofing.co.uk/aboutus/documents/Guidancesheete.pdf
Still legal as long as the irons are no further than 1200mm apart.
This is about the best guide i know of <http://www.forsterroofing.co.uk/aboutus/documents/Guidancesheete.pdf>
