Insulated Panels are prefabricated building panels utilized in floors, partitions, ceilings on buildings. Installing insulated panels for building constructions are aimed to make sure the energy efficiency, easy and fast installation and a decrease in working 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 around a foam core made of expanded polystyrene (EPS), extruded polystyrene (XPS) or inflexible polyurethane foam. Different supplies such as plywood, pressure-treated plywood for below-grade basis walls, metal, aluminum, cement board similar to Hardie Backer, and even exotic supplies like stainless metal, fiber-reinforced plastic, and magnesium oxide will also be utilized in replacement of OSB. SIPs provide steady air and vapor barrier as well as elevated R-Worth compared to traditional constructions. When labor cost, materials waste and energy effectivity are considered SIPs are comparable to more conventional building methods.


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 had 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 primary foam cores SIPs which had been being mass produced in the 1960’s.

How you can 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 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 narrow SIP assembly that’s inserted into recesses in the foam alongside the panel edges. These connections lead to a continuous foam core across the panels. This helps to remove 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 must be covered with a continuous line of panel tape. Openings might occur 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 another enclosed component should be properly sealed.

Benefits and Drawbacks


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 can be easily dismantled and reused

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

5. It’s price efficient as it might be put in simply


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

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

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

4. Requires a proper mechanical air flow system

5. Modification of the initial project is costly.


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 therefore price effective.

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