Mountainview Home Owner Manual


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Windows & Exterior Doors

The manufacturer’s warranty for seal failures (as evidenced by condensation between the two pieces of glass) is 5 years on material only. Labour will be charged extra. The warranty for cracked glass is the standard one year warranty.

If window screens become damaged, many hardware stores offer screen repair services.

Drain ports are small openings at the bottom of all windows. These allow moisture which may have penetrated the window assembly to escape. These holes need to be kept clear or water will back up into the wall or house.

Ensure all weather stripping and caulking is maintained.

Dents in metal man doors do not require that the doors be replaced. Most dents may be patched using “BONDO” (an auto body filler). Sanding and repainting will also be required.

Patio doors and their screens will need to be readjusted over time.

Tracks for patio doors, patio door screens, and sliding windows should be cleaned regularly.

Lubricating wheels, rollers and other moving window and door parts (casement cranks and gears) should be done on a yearly basis using a silicone spray.

Often windows will feel drafty in the winter months when the outside temperature is low. This draft is due to the vertical movement of air over the face of the window. Air near the window gets cooled then drops as hot air rises. This movement may feel like a draft. Drafts coming from the outside can be checked for by opening all drapes and blinds then sliding a lit candle along the edge of the window and watching for movement in the flame where there may be an air leak.

Condensation on the interior surface of the glass when the outside temperature is very low is not a window problem but is the result of high relative humidity levels in the house and low glass temperatures. The only way to eliminate the condensation is by decreasing the humidity level in the air and/or by increasing the surface temperature of the glass. To reduce the humidity level in the air, the dehumidistat next to the thermostat should be set to 35% humidity (this will cause a bathroom fan or HRV to run continuously until enough wet dirty air has been exhausted), if there is a Plusair unit instead of an HRV it should be set with the damper in the open position (this will allow dry clean air to enter the home), and the furnace fan should be set to the on position (this will balance moisture levels throughout the house by circulating the air continuously). To increase the surface temperature of the glass, the thermostat should be maintained at 21 degrees Celsius / 72 degrees Fahrenheit (this will keep the interior surface temperatures at reasonable levels), the temperature must not be reduced at night or when away from the home (this will cause the glass temperature to drop and offers no energy savings), and the furnace fan should be set to the on position (this will balance temperature levels and glass surface temperatures throughout the house by circulating the air continuously). Other major sources of indoor humidity include dryers vented to the inside, clothes being hung to dry in the basement, and taking showers without running the bathroom fan.

Condensation may occur inside fake window panels but will evaporate over time. Fake window panels are often made up of a piece of glass with a spacer and a black panel behind. Drainage holes are added at the bottom to allow humidity to escape during dry weather. Attempts to provide a sealed window unit will fail from the heat generated by the black panels.

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