Introduction
Insulated Panels are prefabricated building panels utilized in floors, partitions, ceilings on buildings. Putting in insulated panels for building constructions are aimed to make sure the energy efficiency, straightforward and fast set up and a decrease in operating costs. A structural insulated panel (SIP) is a composite building material; consisting of an insulating layer core sandwiched between two layers of metals.
Options of SIP
SIP’s are commonly made of the Oriental Strand Board (OSB) panels sandwiched around a foam core made of expanded polystyrene (EPS), extruded polystyrene (XPS) or rigid polyurethane foam. Other supplies resembling plywood, pressure-treated plywood for under-grade foundation walls, metal, aluminum, cement board akin to Hardie Backer, and even exotic materials like stainless steel, fiber-reinforced plastic, and magnesium oxide may also be used in replacement of OSB. SIPs provide steady air and vapor barrier as well as increased R-Value compared to traditional constructions. When labor price, materials waste and energy efficiency are considered SIPs are comparable to more conventional building methods.
History
The Idea of Structural Insulated Panels (SIPs) launched The Forest Products Laboratory in Madison, Wisconsin in 1935. The laboratory developed a prototype panel consisted of framing members, plywood and hard board sheathing, and insulation. These initial panels have been used to build test properties and tested after 30 years to disclose that the panels retain their initial strength. In 1952 Alden B. Dow created the primary foam cores SIPs which have been being mass produced within the 1960’s.
The right way to use SIP
The SIPs are designed to withstand axial loads, shear loads and out of edge loads. These can be used for floors, walls, roofs etc… for the buildings. They have the ability to withstand the bi-axial bending and lateral shear; so, they are very much suitable for use as roofs and floors. Essentially the most widely used panel joint connections are the Surface spline and Block Spline. The Surface spline Joint Connection consists of the strip of OSB or plywood inserted into slots in the foam. The block spline is a thin and slim SIP assembly that’s inserted into recesses within the foam along the panel edges. These connections lead to a steady foam core throughout the panels. This helps to eradicate air filtration at the joints.
One other joint connection is Mechanical cam locks; create a tighter joint between the panels. In any type of connection, the seam alongside the sheathing should be covered with a steady line of panel tape. Openings might happen on the edges and corners of the panel, and so the panel foam may be recessed to access lumber headers. Any opening within the SIPs that accept one other enclosed factor should be properly sealed.
Benefits and Drawbacks
Benefits:
- SIP provides the tighter building envelope and the partitions will have higher insulating properties.
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Lower in operating costs.
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Buildings made with insulated panels may be easily dismantled and reused
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Insulated panel properties (energy and thermal insulation property) will stay the same if reused.
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It’s price efficient as it will be put in simply
Drawbacks:
- Quite poor performance with respect to the noise control.
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Will be damaged by moisture. Better to use the panels with waterproof surfaces.
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Panels needs to be properly protected from pests/insecticides.
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Requires a proper mechanical ventilation system
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Modification of the initial project is costly.
Conclusion
The Structural Insulated Panels come prefabricated and ready to be assembled, and therefore it helps to speed up the construction.Additionally, it requires minimal equipment and workforce and hence value effective.
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