At Island Sash and Door, the window selection we offer is perhaps even greater than our doors. Our suppliers have numerous window combinations that combine beauty and toughness and they will last for decades in your new or newly-remodeled home. Our IS&D staff will install your windows using the latest technology. The green installation processes we employ will give you peace and assurance for years of worry-free beauty and energy efficiency.
The windows we supply all have a perfect balance of beauty and function. Whatever the style, from single-or-double-hung to fixed, sliding, casement, bay, bow or garden – a mix of practical yet elegant construction, in virtually limitless sizes, will provide grandeur and charm to any home. Whether composed of vinyl, wood, aluminum or composite material, all of our vendors supply the best of energy efficiency to match the beauty of their products.
Replacing windows with energy-efficient ones can help reduce your utility bills, but the benefits go much further. Choosing energy-efficient windows makes your home more comfortable, as their performance determines how much heat comes in and escapes out through the windows.
Certification programs such as those administered by the National Fenestration Rating Council (NFRC) and ENERGY STAR provide ratings designed to indicate a window or door’s efficiency. Various performance ratings — like U-factor and Solar Heat Gain Coefficient — measure a product’s effectiveness in insulating and blocking heat from the sun, among other things.
A few technical terms to keep in mind when ordering windows:
U-Factor: Simply put, U-factor measures how well a window keeps heat inside your home. It’s a measure of total heat flow through a window or door from room air to outside air. Lower numbers indicate greater insulating capabilities. It’s a particularly important measure for climates with colder winters.
Solar Heat Gain: If U-factor denotes how much heat leaves your home, the Solar Heat Gain Coefficient (SHGC) measures how much radiant heat enters your home. All you really need to remember is: The lower the number, the less heat a window lets in.
Visible Transmittance (VT): The amount of visible light transferred through a window. Low E coatings can reject solar heat gain without reducing visible light to pass through the glass. A high VT is desirable to maximize daylight.
In the final analysis, the cost of new windows may provide long-term savings for the homeowner. The ability to better control the inside environment through less heat loss in winter and less heat gain in summer will be a lasting benefit. Our staff can help you evaluate the cost/benefit ratios you can expect.