Before you begin
1.1 Kommerling Windows and Doors — German engineered to perform
These are high quality windows that have unique operating features. The instructions for handling,
storing, and installing these units may be different from other window units you have installed.
Thoroughly read and understand these instructions before you begin installation. Proper installation is
necessary for Kommerling windows to perform as designed. It is presumed that the installer possesses
basic woodworking skills and an understanding of wall and roof installation, sheet metal work, and joint
sealant guides.
Improper installation (Failure to install and maintain this unit according to these instructions) will void
any warranty, written or implied as well as compromise the units rating for water and air resistance. The
installer is responsible for contacting the contractor, structural engineer, architect, consumer, or other
person having authority to obtain information concerning proper installation according to local codes
and/or ordinances.
1.2 Receiving and inspection
Conduct a thorough inspection of the window products immediately after receiving them. The windows
should be inspected to confirm correct type, size, and for any shipping damage. All damages or freight
claims must be reported within 48 hours of receipt and submitted in writing within 5 business days of
receipt Kommerling USA, Inc.
Verify that you have all necessary hardware and accessory items.
Inspect the units again before installation to make sure they have not been damaged on the jobsite.
1.3 Safely unloading units from wooden racks
Kommerling units are shipped on wooden racks and secured with banding straps. In order to avoid
accidents, place the wooden rack on a level surface with enough surrounding free area to safely
maneuver the equipment and units being unloaded.
Take care when unloading the windows as they may have shifted during transportation. The windows
are heavy. Always unload with at least two people. Leave all windows secured to the rack until just
before they are unloaded.
1.4 Handling and moving units
Kommerling units are heavy. Always use specialized equipment or at least two people to carry them.
Do not drop these units. The installer is responsible for safe handling of the windows, for selecting
appropriate handling equipment, and for the safety of the installation crew. Kommerling suggests using
vacuum cups whenever moving window units.
Kommerling Windows and Doors
German Engineered 76MD072919
Windows are delivered in a vertical position and must remain vertical when moved and put down. Do
not carry Kommerling windows either tilted at a sharp angle or in a horizontal position. Do not lay the
units flat. Do not lift the units by the top framing member or bend the frames to go around a corner. Do
not rack, twist, drag or pull window frames. Installers should wear clean gloves when handling
Frames with no glass can be heavy. Always carry the frames by supporting the frame weight from the
bottom or by grasping vertical members near the quarter points. Lift frames gently. Never lift units by
the top framing member or by a horizontal framing member. When lifting frames with vertical mullions,
support the joints between mullions and the horizontal framing members. If you lift the frames by the
ends you will crack the frames.
Use vacuum cups to carry frames with glass as this is considered to be the safest way to carry heavy
glass and window units. Kommerling windows may have the glass surfaces covered with protective
plastic film and vacuum cups can be used safely with these units. When using vacuum cups on plastic
film, do not attach the cups on the joint seams. If the plastic film is loose or peeling, or if there is a
condition that causes you to believe it is unsafe to use the cups on the film surface, remove the film
before applying vacuum cups.
Cold weather makes the windows brittle. Avoid any impact to the frames, sash or glazing bead when
handling or installing at temperatures below 4O°.
1.5 Storing Kommerling units
Please review this section carefully. You are responsible for damage to the units from the time they are
delivered until they are installed and turned over to the owner.
Protect stored windows against other job site hazards and contamination such as welding splatter,
grinding sparks, concrete, mortar, stucco, paint, dust and other harmful installation materials.
Properly protecting the window units during storage is important to safeguard their intended function,
aesthetics, and durability. Doing so can speed up or eliminate any cleanup and it can also prevent
unnecessary damage.
Windows shall be stored out of the weather in a clean, dry, low-traffic area, away from direct sun light,
extreme temperatures and temperature changes. Store windows inside if possible.
Do not leave wrapped windows exposed to weather, sunlight or heat. They must be well ventilated so
that heat cannot be trapped under protective coverings. Heat trapped between surfaces and reflected
by glass coatings can lead to permanent damage of frames, finishes, and glass.
Do not store windows in containers, trailers, or areas that might undergo dramatic fluctuations in
temperature and humidity. Do not store near hazardous or chemical materials. Off-gassing of these
materials may degrade the window finish or seals.
Store window units on a flat level surface in a way that will protect the integrity and perimeter of the
unit. If windows must be stored so some lean against others, always stack the largest units at the back
in a completely upright position and proceed forward with gradually smaller units. Never lean windows
against each other without protective material between them. Always secure stacked units to prevent
falling. Kunststof kozijnen
Units with a flange have shipping blocks on the bottom. Make sure windows are always supported on
the blocks.


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