What Are SIPs
What are SIPs?
SIPs, or Structural Insulated Panels
SIPs are a composite panel made up of two sheets of OSB/3 (oriented strand board) which sandwiches a rigid thermoset polyurethane (PUR) insulation core forming an autohesive bond. The OSB/3 provides rigidity and strength while the PUR provides insulation.
Other insulants such as Expanded Polystyrene (EPS) and extruded polystyrene (XPS) are also used however these SIP panels need additional adhesive to bond the insulation sheets to the OSB and by nature these insulants are not as thermally efficient as PUR.
SIPs are a “Fabric First” approach which integrates with a number of different building systems to provide a full super-structure. (This should include intermediate floors, internal walls, roofs and additional structure such as steel / glulam.
SIPs are manufactured under factory-controlled conditions to exacting quality-controlled standards (QC). The offsite fabrication means that your weatherproof super structure can be complete just a few days after the ground floor slabs are ready to receive them.
SIP (SBUK) panels are available in 7 thicknesses, these being 125mm, 142mm, 150mm, 172mm, 175mm, 200mm and 225mm thick. The panels are typically 1220mm wide and can be as long as 7.5 metres in length to suit each individual project. See performance chart link
SIPs are fabricated using timber from sustainable sources. SIPs use less timber than traditional timber frame systems and are one of the most economical and eco friendly forms of construction. The OSB facings are responsibly sourced (PEFC or FSC) and the PUR insulation core has an Ozone Depletion Potential (ODP) rating of zero and has a low Global Warming Potential (GWP).
The high strength to weight ratio of SIP Panels allows large sections of your building to be fitted at once, speeding up the time required on site for erection. The Offsite fabrication reduces waste and also helps reduce embodied and transport energy.
The Key Advantages Of SIP Buildings
- SIP buildings are very strong
- Precision engineered
- Minimal waste
- Less waste to landfill
- OSB sustainably sourced
- 35% reduction in timber used
- Incredible speed of erection
- Dimensionally stable
- Thermally efficient
Standard Details Of SIP Build SIPs
BRE helps government, industry and business to meet the challenges of our built environment. Today’s need to combat climate change, and the significant economic and social issues we now face, are no exceptions
NHBC (National House-Building Council) is the leading warranty and insurance provider and standards setter for UK house-building for new and newly converted homes.