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Expanding  Insulators for Preventing Heat Loss

Well-known products like polyurethane foam and Styrofoam are widely used for insulation jobs. Their special qualities make them perfect for reducing heat loss. These materials have low density as foam is formed by trapping air bubbles in its liquid and solid form. Therefore, they function as ideal insulators and flotation devices.

When applied, expanding foam insulators are transformed into barriers that keep the heat inside. They help reduce not only the conductive flow of heat, but, by adding a reflective barrier, they also slow down the radiant heat flow. Fiberglass, polyurethane foam and polystyrene and cellulose insulation can be used. The product named spray applied polyurethane foam is the most widespread.

Characteristics of Expanding Foam

Expanding foam is very popular due to its qualities of being inexpensive and easy to maintain. As a plus, there are no additional measures to take when applying as the foam is sprayed directly on the surface that needs to be insulated. Other features of expanding foam insulation is resistance to moisture, insects and temperature fluctuations. Expanding foam  is impermeable to water due to its closed cell structure. Not only water is kept at a distance, but also drafts and dirt. This type of insulation is widely used for its weather proof features and it helps in reducing heat loss in buildings. Expanding insulation foam is also environment friendly and energy efficient.

Installation

Installation of expanding foam is not a very complicated operation. First, holes are drilled in the vertical column of blocks, through the mortar joints, making eight inches gaps. The foam is injected in these vertical columns and, due to its traits, it rapidly fills all the empty spaces in all directions. The insulation expands through the joints, getting to the adjacent cells, and not even the smallest hole in the wall remains unfilled. When the operation is finished, the wall is completely sealed. The foam covers all the empty space when the extra substance appears on the exterior in the form of little mushrooms. All the excess is eliminated with a small broom and the holes are covered with mortar. Some precautionary measures are to be taken when working with expanding foam, like wearing protective gloves, protective eye wear and avoiding contact with skin, eyes and clothing.