Green roofs have also been found to dramatically improve a roof's insulation value.

They also apply a low-E coating to the surface of the glass; it adds even more insulation value to the window.

Open cell insulation can be crushed in your hand and has a lower insulation value.

More loose fill must then be added to compensate for the loss in insulation value.

Cellular plastic has a high insulation value, four times greater than similar timber products.

Increasing the sound insulation value of the external walls of your house is not easy, and can be expensive.

The thicker the material, the more air is trapped, and the greater the insulation value.

"I think they will be used in walls and roofs, in particular," he said, "because of the insulation value."

Most buildings are constructed from thick ceramics with high insulation values.

This, however, will only compress the air pockets between the fibers and reduce their insulation value.