elf friend
Member
- Location
- wisconsin's east shore
The general contractor I work for with SIPs buys his pieces from somewhere in Michigan and the come in eight foot wide by up to 24 foot long but without any predrilled chases, as this is cheaper for him. He has a cnc machine at his shop and cuts those pieces into what will be a house. Typically the walls are six inches thick and the ceiling panels are eight inches thick. Most often there is not an attic since the roof panels have an R rating of 38 (i think).