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 materials; 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 corresponding to plywood, pressure-handled plywood for below-grade basis walls, steel, aluminum, cement board similar to Hardie Backer, and even exotic supplies like stainless metal, fiber-reinforced plastic, and magnesium oxide can also be used in replacement of OSB. SIPs provide continuous air and vapor barrier as well as increased R-Worth compared to traditional constructions. When labor cost, materials waste and energy effectivity are considered SIPs are comparable to more conventional building methods.

History

The Thought 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 were used to build test houses and tested after 30 years to disclose that the panels retain their initial strength. In 1952 Alden B. Dow created the first foam cores SIPs which were 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 utilized for floors, walls, roofs etc… for the buildings. They’ve the ability to resist the bi-axial bending and lateral shear; so, they are 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 within the foam. The block spline is a thin and slender SIP assembly that is inserted into recesses within the foam along the panel edges. These connections end in 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 should be covered with a steady line of panel tape. Openings might happen at the edges and corners of the panel, and so the panel foam will be recessed to access lumber headers. Any opening within the SIPs that accept another enclosed ingredient 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 (strength and thermal insulation property) will stay the same if reused.

5. It is price effective as it will be put in easily

Drawbacks:

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

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

3. Panels ought to 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 therefore it helps to speed up the construction.Also, it requires minimal equipment and workforce and therefore cost effective.

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