Sos Roofline Systems

Posts Tagged ‘double glazing quote’

Energy audits of residences and commercial buildings show that the majority of the energy losses are through the roofs, doors and windows. Attic insulation is the answer to halting the loss through the roof, but what can be done about the doors and windows? A double glazing quote is the answer.

Using modern technology in doors and windows begins with the use of double-glazing. This term refers to an insulating glass unit made up of two pieces of glass sealed together with a bonding agent and kept apart by an aluminium or vinyl separator that is filled with a moisture absorbent material. The use of double-glazing has produced a reduction in heat transfer by as much as seventy percent over single-glazed window and door units. The types of glass used in double-glazing can also contribute to further energy savings. Low emissivity glass and inert gases are other means to add efficiency to the glazing.

The energy transfer ratings of glass are as follows: Single glazing ? 5.0 Double glazing ? 3.0 Triple glazing ? 2.2 Double glazing with Low E glass ? 1.7 Double glazing with Low E and Argon ? 1.2 This means that the heat transfer of the glazing in windows and doors may be reduced by more than seventy percent.

Another area of energy loss through windows is by convection or via leaks in the weather-stripping seals around the operating window sash edges and at the meeting rail where the two sashes come together. The advent of superior weather-seals has contributed greatly to the reduction of convection in modern window designs. The primary weather-seal is of wool pile incorporating a flexible Mylar fin to aid in eliminating air flow around the sashes.

Modern window designs allow for glazing for up to one inch in depth, so coupled with the tighter seal around sashes, these windows greatly reduce energy loss, enough so that they will usually ?pay for themselves? in three to five years by the reduction in energy bills for both heating and cooling. When new windows are installed in a properly prepared opening, modern caulks and flexible sealants are used, thus the entire building envelope is tighter with less drafts and energy loss.

An added value in the use of double-glazed fenestration products is the near elimination of disease producing drafts during winter months. No more drapes or curtains moving mysteriously in an otherwise still room. Noise abatement is another added value. The modern window with double glazing can reduce outside noise by as much as forth percent, making for a more pleasant environment.

The framing material used on modern residential windows is wood, metal and PVC. Polyvinyl fluoride (PVC) has become the material of choice in many areas because it is easy to fabricate, long lasting, needs no maintenance other than cleaning and it is attractive. Wood, though attractive and upscale, requires quite a bit of maintenance, while metal must be ?thermally-broken? to be energy efficient.

Double glazing in windows, doors and other fenestration products is a wise move because of the energy savings. The added values of; good looks, easy maintenance and the quiet, healthy atmosphere; that double-glazed, well-designed windows provide, makes for a smart investment.