Replacement Windows

Kohltech Windows & Entrance Systems
583 MacElmon Road
P.O. Box 131, Debert, N.S.
Canada, B0M 1G0

vinyl replacement window

Kohltech Windows & Entrance Systems

Kohltech Windows products are truly personal. Each window and door manufactured by Kohltech Windows bears the label of its customer - from the time the glass is cut to when it arrives at the job site.

For more than two decades, Kohltech Windows has listened to our customers and responded to their needs. Season after season, year after year, Kohltech Windows products have proven they will outperform.

Each Kohltech Windows family of vinyl replacement windows provides outstanding craftsmanship, great value and inno-vative advances. Kohltech Windows engineers are continually looking for new and exciting ways to improve quality so customers can live in comfort and style.

Glass Options

Conserving energy is a priority for you, and it is for us as well. We provide a selection of glass options that assist in increasing a home's energy efficiency.


Clear Glass

Our standard glazing & most economical choice.

LoE

Increased thermal performance and reduction of fabric fading UV rays

LoE/Argon

Increased thermal performance by combining LoE with Argon gas filling

Solarglas®

Increased solar heat gain and a higher ER number by combining pyrolytic LoE, Argon gas, and foam warm edge spacer, providing heat gain in all seasons

Energlas®

Increased thermal efficiency and higher R-value by combining soft coat LoE, Argon gas, and foam warm edge spacer, providing comfortable temperatures year round

Glass technology at its best. Provides ultimate comfort by combining soft coat LoE with Krypton gas in a triple glazed thermopane.

Energlas® Plus is technology at its best. A high performance energy saving glazing system using SuperSpacer® technology and LoE glazing, the Plus is the third pane of glass and high-density krypton gas to increase energy efficiency. This triple glazing system is the best and most energy saving system on the market (R=8.0, U=0.125).

We also offer the popular Energlas® and new Solarglas®, which combine LoE glass, argon gas and silicone foam SuperSpacer® that dramatically reduces heat loss. Both Energlas® and Solarglas® also decreasecondensation and

Energlas® provides comfortable year round living conditions by keeping your home warmer in the winter and cooler in the summer. This results in significantly reduced heating costs and air conditioning expenses. Energlas® uses softcoat LoE on surface #2.

Solarglas® allows for a higher amount of solar heat gain through the glass than Energlas®. While it still blocks harmful UV rays, the amount of heat transferred through the glass is radically higher. However, the R-value for Solarglas® is not quite as good as Energlas®. Solarglas® uses hardcoat LoE on surface #3.

What is LoE?

When glass is coated with a thin, microscopic, virtually invisible, metallic layer, it becomes LoE (low heat emission) glass.

The primary function of LoE glass is to decreasethe U-value (rate of heat transfer). It works by reflecting heat back to its source and blocking radiation, thereby improving thermal performance.

LoE & LoE Solar

Kohltech Windows & Entrance Systems now offers two types of low heat emission glass: LoE and LoE Solar. For added insulation and increased efficiency, both LoE glass options can be used in combination with Argon gas.

LoE is our default low heat emission option. The amount of solar heat gain that is allowed through the glass, combined with the UV blocking properties, help keep homes cooler in the summer and warmer in the winter.

LoE Solar allows for the most solar heat gain. The amount of heat allowed through the glass is significantly higher than with our standard LoE. Although it still blocks UV rays and reduces U-Values, LoE Solar has a tendency to trap the solar heat that comes in through your windows which in turn drives up room temperatures.

For example, if the outside temperature is 32˚C, the inside temperature (at the centre of glass) will be:
33˚C with clear glass
29˚C with LoE/Argon
38˚C with LoE/Argon Solar

If the outside temperature is -8˚C, the inside temperature (at the centre of glass) will be:
7˚C with clear glass
14˚C with LoE/Argon
12˚C with LoE/Argon Solar

Preventing Window Condensation

Window condensation is a frustration for homeowners, especially if their windows are new. Immediate thoughts are of mold, water damage, peeling paint and reduced energy savings. To help our customers prevent window condensation, we need to understand why condensation occurs and how to prevent it.

Humidity and Condensation
Condensation occurs when there is a reduction in the rate of air exchange (i.e. closing windows in winter) and there is excess humidity in the home. Humidity is the amount of moisture or water vapour in the air. People and pets produce moisture when they breathe or perspire. Even indoor plants produce moisture. We add water vapour to indoor air through everyday household activities: cooking, showering, bathing and doing laundry. Every time you run the dishwasher, you add 5 lbs of moisture to your home!

We need humidity for our comfort and health. But too much or too little humidity can produce a host of difficulties in homes. Some of the problems are just nuisances like condensation on windows and musty smells, others can be more serious such as wet stains on walls and ceiling, moldy bathrooms and allergic reactions. Humidity hassles often occur during the colder months when windows are closed, and indoor air circulation is reduced.

Humidity Levels
Experts have developed rules of thumb to help homeowners make decisions regarding humidity levels in their homes. The limits should be used as guides only. Acceptable or comfortable humidity levels will vary from season to season, from house to house, and even between rooms in the same house. To measure the indoor humidity in a home, you can purchase a small inexpensive tool called a hygrometer that measures relative humidity (RH). The recommended indoor relative RH when the outdoor temperature is above 10° C is 30 to 50 per cent. When the outdoor temperature is below 10° C, the recommended RH is 30 per cent.

How Our Windows Help
We use warm edge technology on all our Windows and doors, creating an insulated air space between the glass units. Warm edge spacers also keep the edges of your window glass warmer, reducing condensation.

Double and triple glazed windows ensure the humidity inside the room can be higher than a room with ordinary single glazing before condensation occurs. Because the units are sealed at the factory, condensation between the panes of glass does not occur.

Controlling Humidity
The first step of preventing condensation is controlling humidity. Begin with installing new energy-efficient windows with a high performance rating. Highefficiency windows may not solve all condensation concerns, but properly installed, sealed and insulated windows are the first step towards eliminating humidity issues. Although excessive humidity shows up as condensation on the cold surface of a window, the window is probably not the source of the condensation problems.

Further reducing humidity in homes is not difficult. Begin by remembering to open or close Windows and doors on a periodic basis to exchange air in the house. Exhaust fans may have to be installed in bathrooms and kitchens, and seal up the house with weatherstripping and caulking. Humidifiers, both stand alone or attached to furnaces, can be sources of excessive moisture and mold, so ensure they are not overused.

Tips to prevent window condensation:

  • Install an air exchange unit or a humidity control device to maintain the proper level of humidity

  • Insulate water pipes

  • Ensure hot air from registers does not flow directly on to the interior surface of the glass

  • Turn furnaces with humidifiers off until condensation reduces

  • Ensure the exhaust from the clothes dryer is vented outside

  • Cover crawl spaces with 0.15 mm (6 mil) polyethylene

  • Ensure gutters drain water away from the house

  • Avoid drying firewood in the house

  • Waterproof damp basement walls and floors

  • Use exhaust fans while cooking

  • Open a window when doing laundry

  • Close the bathroom door and open a window after baths and showers

  • Ventilate the home at least once a day

Outdoor Condensation*
Condensation on the outdoor surface of an insulating unit is not an indication that the glass or insulating unit is defective. Under the right set of atmospheric conditions it is possible to get condensation on the exterior glass surface of an insulating glass unit. Specifically, the following conditions:

  • Glass temperature below dew point temperature

  • Clear night sky

  • Still Air

  • High relative humidity

  • Well insulated glazings

Exposed to these conditions, the exterior surface of the glass can radiate heat away to the night sky such that the glass temperature falls below the dew point of the ambient air. When this occurs, moisture from the air condenses on the glass surface. Only when the glass temperature rises above the dew point will the condensation evaporate back into the air. Dew formation on grass, car hoods and roofs, and building roofs and walls is common and accepted as a fact of nature.

The presence of moisture indicates that a specific set atmospheric conditions exist and that the insulating glass is indeed doing its job -- that of insulating the building from the environment. In this case, that insulation capability is what retards the flow of building heat through the glass and prevents warming of the exterior above the dew point.

If exterior condensation occurs on insulating glass, there is little or nothing that can be done to prevent its reoccurrence. Draperies should be open to allow as much heat transfer though the glass as possible. Trees or buildings can block the radiation view to the sky. Shrubbery immediately adjacent to the glass can increase the local humidity and may need to be moved. The exterior surface of the glass will warm and the condensation will evaporate when either the heat loss to the sky is blocked (i.e. clouds), the wind picks up, or sunlight is absorbed on the glass surface.

*Source: Cardinal Glass

Window Style Dictates Performance

In the midst of the adverse weather of our Canadian winters, we are continually reminded of how important window performance is to our customers. To help customers choose the right windows for their homes, it is important to consider the performance required for their particular weather conditions and location and to understand how a windows performance is rated.

Performance
We are committed to providing superior, innovative products. To guarantee the performance and quality of our windows, they are independently tested and then certified by the Canadian Standards Association. The CSA A440 measures and rates window performance, including wind and water resistance, and structural integrity.