Windows & Doors
Whether you would like to improve the energy performance of your existing windows or replace them with new energy-efficient windows, several options are available. The benefits of efficient windows include energy and cost savings, improved comfort, less condensation, increased light & view, reduced fading, and lower HVAC costs.
An energy audit performed by a SENSIBLE Home Solutions certified auditor can help you identify good strategies for more efficient windows and a more efficient house. Whichever energy efficiency measures you consider, the federal government as well as state, local, and utility programs may offer financing help or weatherization assistance.
When replacing old windows, the first question is what window parts this will involve:
Is the full window being replaced, including the frame?
Is a retrofit window inserted into the existing frame?
Are just the sashes being replaced with a new sash kit?
Your SENSIBLE Home Solutions energy auditor will help you determine the best option based on your homes window and wall conditions.
Full window replacement - The existing frame is removed and the new window placed into the same position that was occupied by the old window. This is an opportunity to fix issues such as water or air leakage that may have occurred around the old frame.
Inserting windows in existing frame - The old sash, side jambs and trim are removed, but the original frame is left in place. The new window is inserted into this opening. Accommodate slightly out-of-square conditions of the existing frame if possible. Significant out-of-square conditions should be fixed with complete window replacement.
Sash replacement - Many manufacturers offer replacement sash kits, which include jamb liners to ensure good operability and fit. This option allows for relatively easy installation, but the existing frame must be in good shape so that air and water tightness is ensured.
Among each of these options you can find products with a variety of energy efficiency features and rated energy performance. Choosing among different energy-efficiency options can be complex. SENSIBLE Home Solutions will guide you every step of the way.
Benefits of High Performance Windows
Heating and Cooling Season Savings
Low-E coatings, gas-fills, and insulating spacers and frames result in a lower U-factor, meaning less winter heat loss. Many low-E coatings also reduce solar heat gain.
Improved Daylight and View
Many low-E coatings can reduce solar heat gain significantly with a minimal loss of visible light (compared to older tints and films).
Improved Comfort
With a low U-factor, window temperatures are more moderate and there are fewer cold drafts. With a lower solar heat gain coefficient (SHGC), there is less discomfort from the summer sun.
Less Condensation
Frame, spacer and glazing materials that resist heat conduction do not become as cold and this results in less condensation.
Reduced Fading
Coatings on glass or plastic films within the window assembly can significantly reduce the ultraviolet (UV) and other solar radiation which causes fading of fabrics and furnishings.
Lower Mechanical Equipment Costs
Using windows that reduce solar heat gain (low SHGC) may allow for smaller, less expensive cooling equipment. Windows with a very low U-factor may ensure winter comfort even without the need for heat registers near the windows.
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