Hi all, I am builder from New Zealand. I am also conducting a research report through Victoria University in Wellington, New Zealand. My research report is based on the constructability of SIPs. My key questions are; What additional equipment is required; How complex is the product to use, does it need specialized personal; what effects does it have on management, programming, control of the site; handling of SIPs during the construction stage, eg is it effected by moisture, how is it stored on site; are there any specific health and safety issues associated with the product.
There are currently no SIPs constructed houses in New Zealand, from research conducted it appears to have many advantages over other systems used here (mainly stick frame construction). With my chosen career in the construction industry I believe this product could effect me in the future as we search for more sustainable, energy efficient methods of construction and hope to be utilizing this product in the near future. Thank you for your feedback it will be of great value to my report.

Very little equipment necessary for installation, only manuffacturing. For installation, skilled crew with small crane/boom truck for second level and roof installations. One to two strongly skilled carpenters with lower skill level labor is needed. Product is very easy. It can be furnished either in blank panels or pre-cut by manufacturer. In the first case, you would have to cut all door and window openings, bevels, sizes, etc. With pre-cut, the manufacturer would custom cut all wall and roof panels. They would be numbered and cross referenced on drawings. The benefit to pre-cut is there is virtually no waste on the job site, the job site is kept neat. Erection time can be cut to about 1/3 the normal stick building time. This also cuts down on potential theft from the site. Installation connections vary by manufacturer, but most use splines between panels. SIPS can be handled easily be labor as the weights are about 4 pounds per square foot. Moisture is not a problem, but don't lay the panels on the ground. Block with 4x4's and keep covered until use. There are no negative health issues. Panels are CFC free. Construction with SIP's creates a very well insualted structure, 3-1/2 to 7 RF per inch thickness depending upon core material. I saw a very good intallation manual on-line with one of the manufacturers which may give you a good idea how it all goes together. You can get it at www.winterpanel.com. One of the better one's I've seen. Hope this helps.