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Cavity Wall Insulation with Polystyrene- Next Gen Insulation

By Polystyreneps Subscribe to RSS | February 2nd 2012 | Views:

Energy efficient house is one the best thing one can dream about. With rising energy bills, extreme weather conditions and expensive fuel, being ignorant about the energy poverty can be really costly. Effective insulation is one way in which one can fight against this energy poverty because it saves energy that would be otherwise wasted on warming or cooling down the temperature of the house. Without insulation, heaters or coolers have to pump more energy than required to make the house cozy. This is due to loss of heat, energy via leaks and transfer of energy through poorly insulated walls.

With Polystyrene

, a new advanced type of insulation has come into action. It is known as Cavity wall insulation. Let me throw some light in it.

Cavity walls are basically hollow walls that has a small gap (cavity) between them which acts as a hindrance in transfer of heat from one medium to another (here the two mediums would be interior of the house and the external environment). As we all know that heat transfer takes place through a medium (walls). If this medium is interrupted, then the rate of heat transfer will automatically slow down.

Cavity walls insulation can be accomplished with many materials, but the most preferable and promising material so far is polystyrene. EPS and XPS polystyrene form the basic material for insulation. This again comes in different forms. Polystyrene beads, sheets, cellulose are used to fill up the empty cavity in the walls.

This insulation gives best results if done at the time of construction. Polystyrene sheets are simply placed between the walls forming a continuous layer. In case of beads, a special adhesive is used to keep the beads in place. The most advanced and widely used form is cellulose polystyrene. Here, a special sprayer is used to throw a liquid chemical in the cavities, which turns into foam as soon as it comes in contact with air. This fills up the cavities completely leaving no gaps or air holes. It gives high R value and hence considered to be one of the best insulating medium. Though this process is quite expensive and complicated but it is definitely worth the cost.

In cases where the houses are already built, cavity walls insulation becomes quite complicated. Post-construction insulation is possible only if the house has cavity walls. The insulating materials like polystyrene beads or glass fibers are inserted into the cavity with a process called “Bowing in”. It is done from outside walls. A hole is drilled in the walls to see if it has cavity or not. If the cavity is already filled with an insulating material, the condition is examined. Otherwise, the polystyrene beads are poured into the cavities with a special nozzle along with an adhesive that will keep them intact.

Cavity wall insulation not only lowers the electricity and energy bills but it also makes the atmosphere inside the house healthy and comfortable. Make your home energy efficient with cavity wall insulation today! Visit to know more about Polystyrene


Polystyreneps - About Author:
Hazel is an upcoming Polystyrene
author. She has been writing for different sectors since last two years. She completed her graduation from University of Illinois. And has developed a sudden interest in writing which brought her with us. She is now working with us as a expanded polystyrene Content editor and has been constantly showing traces of improvement in her skills and quality

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