Polar Wrap
Print this page
Siding insulation, also referred to as leveling board, serves these important functions:
- It improves the Thermal Efficiency of your home by forming a highly effective insulation layer over the outside of your home.
- This layer acts as an air infiltration barrier, significantly reducing the free movement of air through cracks and openings in the wall. This is widely acknowledged as a major source of thermal loss.
- It forms a thermal break between the interior and exterior of the wall. In standard "stick frame" construction, fiberglass or cellulose insulation is placed between the studs in the wall. The studs themselves are not insulated, so they act as a conduit for conducting heat through the wall. By insulating the exterior wall you break the conductive path of energy loss.
- It improves the working surface for the siding installation, by forming a rigid flat base for the new siding. This can smooth out an imperfect wall, resulting in sharp even lines where bulges and waviness existed before.
- It can help to dampen the noise level permeating the structure from the outside. For homes subjected to extreme traffic noise, additional noise reducing steps will probably need to be taken. But, a layer of insulation can noticeably reduce external noise, making your home a more relaxing place to be.
Polar-Wrap has been specially designed to meet the critical needs of homeowners and professional siding installers. It has special features which protect it during handling, simplify installation and improve its long-term insulating performance. The materials used in the manufacture of Polar-Wrap have been carefully selected for their unique characteristics.

