Passive house construction the important secondary plywood sill plate and the insulation

Passive house construction video #11 In Port Alberni BC Canada, relates to the Secondary plywood sill plate in combination with isolating insulation this is a first as is the splayed plywood window lining to the double wall, macduff's video's detail every step in the construction as the passive house build progresses to the double walls and forward to the completion with innovative ideas.