Editing Structural insulated panel (section)

== Methods of manufacturing ==
{{More citations needed|date=May 2018}}
SIP's are most often manufactured in a traditional factory. Processing equipment is used to regulate pressures and heat in a uniform and consistent manner. There are two main processing methods which correspond to the materials used for the SIP core.  When manufacturing a panel with a polystyrene core both pressure and heat are required to ensure the bonding glue has penetrated and set completely. Although a number of variations exist, in general, the foam core is first covered with an adhesive and the skin is set in place.  The three pieces are set into a large clamping device and pressure and heat are applied.  The three pieces must stay in the clamping device until the glue has cured.

When manufacturing a panel with a polyurethane core pressure and heat are both generated from the expansion of the foam during the foaming process.  The skins are set in a large clamping device which functions as a mold.  The skins must be held apart from each other to allow the liquid polyurethane materials to flow into the device.  Once in the device, the foam begins to rise.  The mold/press is generally configured to withstand the heat and the pressures generated from the chemical foaming.  The SIP is left in the mold/press to cure slightly and when removed will continue to cure for several days.

Until recently, both of these processes required a factory setting. However, recent advancements have presented an alternative with SIP processing equipment that allows SIPs to be manufactured on the job-site. This is welcome news for builders in developing countries where the technology may be best suited to reduce [[greenhouse gas emissions|greenhouse emissions]] and improve sustainability in housing but are unavailable.