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Introduction

Insulated Panels are prefabricated building panels utilized in floors, walls, ceilings on buildings. Putting in insulated panels for building constructions are aimed to make sure the energy efficiency, straightforward and fast installation and a decrease in operating costs. A structural insulated panel (SIP) is a composite building material; consisting of an insulating layer core sandwiched between layers of metals.

Options of SIP

SIP’s are commonly made of the Oriental Strand Board (OSB) panels sandwiched round a foam core made of expanded polystyrene (EPS), extruded polystyrene (XPS) or inflexible polyurethane foam. Other materials such as plywood, pressure-treated plywood for below-grade foundation partitions, steel, aluminum, cement board equivalent to Hardie Backer, and even unique supplies like stainless steel, fiber-reinforced plastic, and magnesium oxide can also be utilized in replacement of OSB. SIPs provide steady air and vapor barrier as well as increased R-Worth compared to traditional constructions. When labor value, materials waste and energy efficiency are considered SIPs are comparable to more standard 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 reveal that the panels retain their initial strength. In 1952 Alden B. Dow created the first foam cores SIPs which have been being mass produced in the 1960’s.

The best 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 resist the bi-axial bending and lateral shear; so, they’re very much suitable to be used as roofs and floors. 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 in the foam along the panel edges. These connections lead to a steady foam core across the panels. This helps to eradicate air filtration at the joints.

Another joint connection is Mechanical cam locks; create a tighter joint between the panels. In any type of connection, the seam alongside the sheathing have to be covered with a continuous line of panel tape. Openings may occur at 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 settle for another enclosed factor have to be properly sealed.

Benefits and Drawbacks

Benefits:

1. SIP provides the tighter building envelope and the walls will have higher insulating properties.

2. Lower in operating costs.

3. Buildings made with insulated panels will be easily dismantled and reused

4. Insulated panel properties (energy and thermal insulation property) will remain the identical if reused.

5. It is value effective as it might be installed simply

Drawbacks:

1. Quite poor performance with respect to the noise control.

2. May be damaged by moisture. Better to make use of the panels with waterproof surfaces.

3. Panels should be properly protected from pests/insecticides.

4. Requires a proper mechanical ventilation system

5. Modification of the initial project is costly.

Conclusion

The Structural Insulated Panels come prefabricated and ready to be assembled, and hence it helps to speed up the construction.Additionally, it requires minimal equipment and workforce and hence cost effective.

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