This document was created to answer some frequently asked
questions about replacement windows. Below, you'll find answers
to questions concerning condensation, types of glass, cleaning,
and window evaluation.
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Who should I buy
windows from?
A consumer should select a window company who sells energy efficient
products, has a reputation for service and stability, and provides
a warranty on the unit. We recommend that you buy from a company
with a commitment to participating in the National Fenestration
Rating Council (NFRC) certification and labeling process and
in the ENERGY STAR® Windows program. Many companies will also
participate in the American Architectural Manufacturers Association
(AAMA) and will have a permanent label on the product indicating
their participation. Membership in all of these organizations
is an indication that you are dealing with a manufacturer who
cares about the quality of their product and the product's energy
efficiency. |
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Where do I go
to buy an efficient window?
Before you buy a window, we recommend that you do your research
via the web and written material and then shop around. Windows
are complicated devices, made more complicated by the fact that
recommended window types vary by climate. Climates where heating
is very important have different product recommendations than
climates where cooling is more important. First, educate yourself
about what kind of window is right for your climate and needs.
Learn about the NFRC and ENERGY STAR® labels and why they are
important. Prepare yourself to ask questions. Visit retailers
or distributors. Look for the product you want within your price
range. Ask questions of the sales staff and let them tell you
about the energy efficiency features of the products. Remember
to 1) look for the ENERGY STAR®, 2) Look for the NFRC label,
3) select a product that is right for your climate and your
pocketbook. Sometimes a homeowner feels more comfortable with
a particular company rather than a particular product. Installation
is a very important issue with windows. Ask the company to describe
the installation process. Make sure your contractor knows as
much about ENERGY STAR® products and NFRC labeling as you do. |
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Why are my windows
drafty and will new windows stop the draft?
Drafty windows and air infiltration could have several causes.
Improper installation is often the culprit but not always. If
the windows were improperly installed, the defects can normally
be corrected without removing or replacing the window. Proper
caulking and flashing should prevent perimeter air leakage.
However, if the installation twists or racks the window frame
causing the sash weatherstrip not to be able to seal the sash
to the frame, removal of the window to correct the problem may
be necessary. You can determine whether the air is coming in
at the joint between the frame and the house or the joint between
the sash and the frame. Hold a lighted candle or lighter in
front of each joint when the wind is blowing and slowly move
it along the joint. If the flame flickers strongly or goes out,
the joint is probably leaking. If the leak is between the frame
and the sash and the window has been installed square, plumb,
level and is not twisted or racked, the problem may be construction
of the window or window design. If your windows are not efficient
in your climate and particularly if it does not have insulated
glazing, the air may not be leakage but simply cold room air
flowing down the surface of the window. As the window surface
becomes colder, it cools the room air next to it. This cooled
room air is then heavier than the warmer room air further into
the room. Because the cooled room air is heavier it sinks toward
the floor and is replaced by warmer room air, which is then
cooled. This process can result in noticeable air flow but it
is not air leakage from the outside. Replacement of the window
by an energy efficient window is the solution here. |
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Will new windows
eliminate condensation?
Condensation is a direct result of interior humidity and the
difference between indoor and outside air temperature. If you
keep the humidity in your house low, then the likelihood of
experiencing condensation is also low. However, the efficiency
of your window will also impact the temperature and humidity
level at which condensation occurs. Energy efficient windows
will help reduce condensation. Here's why: high performance
windows with low U-factors result in inside glass surface temperatures
much closer to the room air temperature. Windows with warm edge
technologies and non-metal frames are also less likely to have
condensation on the frame or at the edge of the glass. Insulated
"superwindows" with three or more layers will virtually eliminate
condensation on the interior surface of the glass -- even under
extreme cold weather conditions. Note that in certain conditions
(humid mornings after a clear night sky), some superwindows
may have dew on their outside surface. These windows are such
good insulators, the dew is condensing there just like it does
on an insulated wall. |
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When should I
consider replacing my windows?
You should consider replacing your windows if: Your windows
aren't energy efficient. Your wood frames are rotting. You get
excessive amounts of condensation, fading of furniture and draperies.
You are tired of painting and staining. You feel drafts while
sitting near your current windows. |
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What should I
look for when selecting a product?
Choose a company with a proven track record and good references.
Make sure you are getting a high quality product and certified
installers. |
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What is low-e
glass and why should I consider it?
Low-e glass is short for low-emissivity glass. It has a very
thin coat of material on the glass to make it more efficient,
especially in very sunny, hot areas. It helps reflect standing
heat away from the surface of the glass, keeping unwanted heat
out in the summer and desired heat inside in the winter. Low-e
glass is the most cost effective way to increase the efficiency
of your windows. Low-e coatings can also help reduce furniture
and carpet fading by reducing the amount of ultraviolet (UV)
radiation that enters your home. Ultraviolet radiation can alter
the chemical structure of dyes and other colorants. |
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I have odd-sized
windows in my Michigan home. Can hansons provide windows to fit my openings?
Yes, hansons carries custom-maked windows to the nearest 1/8"
increment and can produce a variety of shapes and sizes. |
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What causes condensation
on windows?
Condensation is caused by excess humidity or invisible water
vapor present in the air. When this water vapor encounters a
surface at a cooler temperature, it turns to visible droplets
of moisture. To reduce the moisture in your Michigan or Ohio home, use fans in
bathrooms, kitchens and laundry rooms to circulate the air.
A dehumidifier can be used to remove excess humidity from the
air. |
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What does AAMA
and NFRC certified mean to me as a homeowner?
The American Architectural Manufacturers Association (AAMA)
sets all performance standards, product certification and educational
programs for the window industry. When a product passes AAMA
tests, it ensures long, reliable service if properly installed
and maintained correctly. The National Fenestration Rating Council
(NFRC) is a non-profit organization created by the Department
of Energy and the window, door and skylight industry to provide
consistent ratings on window, door and skylight products pertaining
to the energy performance of that product. A NFRC label is placed
on window, door, and skylight products to inform consumers about
a product's U-factor. Factors taken into consideration for the
U-factor rating include: the ability of the product to block
warming caused by sunlight, light transmittance and air leakage
by infiltration through cracks in the product assembly. |
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What's the best
way to evaluate a window's energy performance?
The easiest way to compare energy performance of different windows
and doors is to read the National Fenestration Rating Council
(NFRC) label. It provides valuable efficiency information about
the product including the u-value, solar heat gain and visible
light transmittance values. Also check to see if the product
is ENERGY STAR® approved. |
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Does the old
adage, "If it Ain't Broke..." apply to old windows?
There are many reasons to replace your old single-pane windows
- and most of them have nothing to do with neighborhood baseball
games.
Here are just a few smart reasons to upgrade to a smarter
window:
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Save Money on
Energy Bills
If you have single-pane windows, upgrading to hansons windows
with energy efficient features like double-pane, Low-e tinted
and low-e Plus glass will result in unbelievable year-round
savings. |
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Improve Your
Home's Appearance
Our high quality vinyl and selection of styles and hardware
options can improve the look of your home both inside and out.
Often, simply changing the window style can dramatically change
the entire appearance of a room. |
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Increase Ventilation
Get more fresh air circulating in your house by replacing
fixed units with operable venting windows. You'll be amazed
at the difference quality windows make to the quality of life
in your home.
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How Do I Clean
My Windows?
When cleaning windows and doors, use the mildest cleaners possible.
NEVER use solvents or abrasive cleansers -some chemicals can
harm vinyl and PVC surfaces and other window components. We
recommend Fantastik® and similar products to clean vinyl window
frame surfaces. Over-the-counter glass cleaning products are
recommended for cleaning windows. Below is a chart of cleaners
for specific circumstances recommended by the Vinyl Window and
Door Institute. |
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Cleaners to
Remove Stains from Vinyl Window and Door Frames
Bubble Gum Fantastik®, Murphy Oil Soap®, Solution of vinegar(30%),
Water(70%), Windex® Crayon Lestoil® DAP (Oil-Based Caulk) Fantastik®
Felt Tip Pen Fantastik®, water-based cleaners Grass Fantastik®,
Lysol®, Murphy Oil Soap®, Windex® Lipstick Fantastik®, Murphy
Oil Soap® Lithium Grease Fantastik®, Lestoil®, Murphy Oil Soap®,
Windex® Mold and Mildew Fantastik®, Solution of vinegar(30%),
Water(70%), Windex® Motor Oil Fantastik®, Lysol®, Murphy Oil
Soap®, Windex® Oil Soft Scrub® Paint Brillo® Pad, Soft Scrub®
Pencil Soft Scrub® Rust Fantastik®, Murphy Oil Soap®, Windex®
Tar Soft Scrub® Top Soil Fantastik®, Lestoil®, Murphy Oil Soap®
*Cleaning Materials are listed in alphabetical Order. Hansons
does not endorse proprietary products or processes and makes
no warranties for the products referenced herein. References
to proprietary names is for illustrative purposes only, and
is not intended to imply that there are not equally effective
alternatives. All cleaners used must be thoroughly rinsed off
and dried after use or discoloration of vinyl frames could occur. |
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How to Keep Your
Windows Clean and Lubricated
Vacuum dirt and debris from sill and track areas before washing.
Clean glass and window or door frame with a mixture of mild
dish soap and water. Rinse completely with clean water and wipe
dry with a soft cloth to avoid water spots. Avoid washing glass
in direct sunlight. Never use abrasive or caustic cleaners.
They can cause permanent damage to the frame finish or the glass.
Mild, nonabrasive soaps are usually the safest for most dirt
and stain removal, but any cleaner you use should be tested
in an inconspicuous area first. Always rinse completely with
clear water and wipe dry if possible. Check to make sure drainage
or "weep" holes are always clear of dirt and obstructions -
both inside and outside the window or door in the bottom of
the frame. Composite windows do not have weep holes. Note: If
the window is "stacked," there may be weep holes between units.
Clean screens by removing them, washing them on a flat, clean
surface with mild soap and water and a soft brush, then rinse,
wipe dry and reinstall. Windows and doors with moving parts
include hardware components that should be lubricated periodically.
In salt-air environments, these components require monthly lubrication.
After wiping clean, use a silicone spray with a non-petroleum-based
propellant on door or sliding window tracks, rollers and locking
hardware. |
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Frame Cleaning
Keeping your windows and doors clean means more than just the
glass. Here are some helpful tips for cleaning your window and
door frames effectively without damaging them. ¦ Vacuum dirt
from sill and track areas before washing.
Clean window and door frames with a mixture of mild dish
soap and water.
Abrasive or caustic cleaners or solvents are never recommended
because they might cause permanent damage to the frame finish.
Mild, nonabrasive soaps* are usually safest for most dirt
and stain removal.
Always rinse completely with clear water and wipe dry.
Check to make certain that drainage or "weep" holes are
always clear of dirt or obstructions-both inside and outside
the window or door in the bottom of the frame.
Note: If the window is "stacked," there may be weep holes
between units. *Ivory® is an example of a mild dish soap.
Always test cleaners in an inconspicuous area first.
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Glass Care
Glass care today is more important than ever. Insulating, low-e
or heat reflective glass requires proper maintenance to ensure
their complete effectiveness.
Never use any petroleum-based cleaners, or caustic chemicals
on your glass.
Never use a razor blade, putty knife or abrasive pad to
clean the glass.
Do not use a high-pressure spray nozzle when rinsing your
windows after washing.
All of these practices may damage the glass surface, the
insulating glass seal, or component parts.
Clean glass with a mixture of mild dish soap* and water.
Rinse completely with clear water, then wipe dry with a soft
cloth to avoid water spots.
Avoid washing glass in direct sunlight.
Abrasive or caustic cleaners are never recommended because
they might cause permanent damage to the finish or the glass.
Clean screens by first removing, then washing on a flat,
clean surface with mild soap and water and a soft brush. Rinse,
wipe dry and reinstall.
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Smooth Operation
To ensure that your windows and doors open, close, lock and
unlock easily for years to come, follow these helpful maintenance
tips to keep your windows and doors operating smoothly.
Moving parts in hardware components and tracks and rollers
should be lubricated periodically in accordance with the manufacturer's
maintenance instructions. In salt-air environments this can
mean at least monthly.
Check weather stripping around operable window and door
panels and be sure it seals evenly.
On sliding doors and windows, make certain track area is
kept clean. Vacuum as needed to clear dirt or any debris.
Adjust sliding door rollers for proper height clearances.
Most door rollers can be adjusted with a screwdriver through
access holes in either the end or side of the sliding panel
at the bottom.
Rolling screen doors may be adjusted to run smoothly. Use
a screwdriver-often in all four corners-to make adjustment.
After making door roller adjustments it may be necessary
to make adjustments in the lock strike placement. Most strikes
may be adjusted by loosening screw fasteners, moving strike
plate and tightening. Check for proper lock operation.
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Condensation
& Mold
Window condensation can be a natural occurrence. It can be a
warning that excessive moisture is present and may cause structural
deterioration and the possibility of mold growth.
Condensation on the inside of a window is a result of a
higher air moisture content contacting lower temperatures
on the glass. The higher the interior humidity and the lower
the outside window temperature, the more condensation can
occur.
Excessive interior humidity can lead to structural damage
and health concerns if high moisture levels are sustained
inside wall cavities. Wood rot, mold and mildew can result.
Check all sash for smooth adequate operation. Add integrated
window ventilators and air exchange devices if necessary.
Regularly use exhaust fans especially when showering.
Install and use a dehumidifier. Use ceiling fans to circulate
air.
Open windows and doors whenever practical or possible to
allow interior moisture to escape.
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Drainage Systems
Windows and doors often have a simple drainage system or "weep"
system designed right into the product. These water drainage
pathways must be kept clear and clean for the window or door
to operate correctly.
It's normal for water to accumulate in the sill or track
area with wind driven rain. The water is intended to drain
to the outside as water builds up or outside pressure subsides.
Keep sill or track areas clean of dirt or debris. ¦ Make
sure that outside and inside "weep" holes and sill area are
kept clear of any dirt, stucco, sand, or building materials.
Use a small, soft bottlebrush to clear openings.
Windows can be vulnerable to water leakage at the corners
if not properly maintained. If a crack appears, it should
be sealed with a good grade of sealant according to the manufacturer's
instructions.
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Key Do's and
Don'ts
DO: Clean the frame surfaces.
DON'T: Use a razor blade, putty knife or abrasive pad.
DO: Use a glass cleaner or mild detergent.
DON'T: Use any petroleum-based cleaners or solvents.
DO: Clean tracks and weepholes.
DON'T: Use oil-based lubricants or damage weephole covers/baffles.
DO: Check weather stripping and hardware.
DON'T: Live with poor performing components.
DO: Clean your insulating glass with proper cleaning agents.
DON'T: Add attachments to window or glass without approval
from the window manufacturer.
DO: Choose certified windows and exterior glass doors.
DON'T: Settle for products that do not meet important air,
water, structural, forced entry and thermal performance standards.
DO: Read and understand your manufacturer's warranty and
install per the manufacturer's instructions.
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How Long Will
a Window or Door Last?
Most of today's windows are made from a frame material and an
insulating glass "sandwich"-each component subject to wear,
weathering, and potential failure. Weatherstripping in the frame
and moving parts can wear out with use. An insulating glass
panel may suffer a broken seal after years of expansion and
contraction with temperature changes-creating a "fogged" look
as moisture accumulates between the glass panels. According
to the National Institute of Standards and Technology (NIST),
some windows can last up to 50 years. Some of the factors that
go into the determination include:
Frame material
Quality construction practices and building style
Product quality
Climate and exposure
Routine care and maintenance
Replacement of parts that wear with use with an AAMA Certified
product that's cared for, you can expect to increase the service
life.
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What is the American
Architectural Manufacturers Association (AAMA)?
The American Architectural Manufacturers Association or AAMA
sets all performance standards, product certification and educational
programs for the window industry. When a product passes AAMA
tests, you can expect long and reliable service as long as the
window is installed and maintained correctly. |
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What is Double
Glazing?
Two panes of glass separated by an air-space to form insulating
glass. |
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What is a Casement
Window?
A window that opens from the side like a door. Historically,
casements were the first working windows. They were strategically
placed throughout a house to capture breezes and direct them
through the rooms. Screens are hung internally to prevent dirt
and insects from entering the house. |
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What is a Double-Hung
Window?
A window with two sashes, upper and lower, that slide vertically
past each other. |
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What is a Slider
Window?
A window with a sash or sashes that move horizontally. |
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What is ENERGY
STAR®?
ENERGY STAR is an independent U.S. government program establishing
a standard set of guidelines to recognize the energy efficiency
of various products. ENERGY STAR guidelines are used in conjunction
with a variety of building materials, including windows and
patio doors. Over the past 10 years, ENERGY STAR guidelines
have helped double the efficiency of windows they endorse. |
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What is Low-Emmisivity
(Low-E) Glass?
Low-e glass is manufactured by depositing a microscopically
thin, transparent metal or metallic oxide layer on the glass.
Low-e coatings reduce radiant heat loss, and can reduce the
passage of UV rays. Use of heat-resistant (or absorbing) glass
began in the 1950s, as did the use of reflective (or mirror)
glass. |
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What is the National
Fenestration Rating Council (NFRC)?
The NFRC is an independent, third-party certification organization
with industry-accepted standards for evaluating and certifying
energy performance. The NFRC Certificate contains U-factor,
SHGC (Solar Heat Gain Coefficient) and VT (Visible Transmittance)
values. These values form the basis for the ENERGY STAR® Door
and Window Program. |
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What is R-Value?
Refers to a window's resistance to thermal transfer or heat
flow. The higher the value, the better the insulation. |
