SIPs have been in use since the 1930s when they were invented in America in an effort to use timber more efficiently. Since those first houses were built SIP technology has come a long way and has become an established industry in America. The market share of SIPs in the US has grown in each of the past 5 years versus other forms of construction and has been used in Europe, especially Northern Europe, far longer than in the UK due to greater emphasis on keeping the cold outside.
Since SIPs were introduced to the UK in the 1980s, they have gone from strength to strength, with thousands of SIP houses now built in the UK due to their excellent energy efficiency and strength. SIPs are now a tested and trusted construction method and are accepted by warranty providers, building regulations and mortgage lenders Sound Performance SIPs eco panels can be used as a party wall achieving up to 59db reduction (45db requirement by building control, with 119mm SIP, 25mm mineral wool in the service void and plasterboard plank to either side with 3mm skim)
Recommended roof design is carried out by a structural engineer where necessary. Foundation to wall detail Sole plates are fixed to the slab by means of mechanical fixings at specified centres. The sole pate is treated softwood with the width dependent on the thickness of the panel core.
The optimum fire rating is achieved using two layers of 12.5mm Lafarge plasterboard.