1000 Series (1″) Metal Between-Glass Venetian Blind
* Lift cords for all between glass Venetian blinds must remain inside the sealed window unit.
Lift cords should be accessible only to properly trained and authorized personnel.
Differences Between 1″ and 5/8″ Blinds
When deciding between 1″ and 5/8″ blinds, please note:
1″ blind is less expensive
1″ blind requires a minimum airspace of 1-1/8″
5/8″ blind requires a minimum airspace of only 3/4″
THICKNESS OF SLAT
1″ blind uses a more resilient slat that is .008″ thick
5/8″ blind uses a slat that is .006″ thick (Once the blinds are safely installed within the window, resiliency is not an issue as the blinds are protected by the glazing materials in your window system.)
Due to the thinner slats, the 5/8″ blind is easier to look through in the open position
1″ blinds will exhibit slightly better shading coefficient characteristics
Some manufacturers will refer to their 15mm blind as a NOMINAL 1/2″ BLIND. A 15mm slat is .591″ wide.
1000 Series – (1″) Architectural Guide Specifications
8520 – Aluminum Windows
8600 – Wood Windows
PART 1 – GENERAL
Paragraph 2 – Window Components
Headrail shall be 1.085″ wide x .875″ high x .050″ thick 6063-T5 extruded aluminum with a baked-on polyester powder coat finish conforming to AAMA specification #603.8-1985 voluntary specification for organic coatings on architectural extrusions.
Bottomrail shall be 1.000″ wide x .375″ high x .050″ thick 6063-T5 extruded aluminum with a baked-on polyester powder coat finish conforming to AAMA specification #603.8-1985 voluntary specification for organic coatings on architectural extrusions.
Slat shall be .008″ thick virgin aluminum alloy. Slats to be finished with organic primer and baked-on enamel finish coat to withstand 500 hours of exposure to 100% relative humidity, 300 hours at 20% salt spray solution at 95°F, and 250 hours of accelerated weathering without blistering, fading, or corroding. Color to be from standard color chart as selected by the architect.
Shall consist of braided synthetic yarn designed to have maximum flexibility and tensile strength. Ladder cord locations shall not exceed 6″ from the end of the slat or 24″ apart.
Ladder/Tape Drum Support
Ladder/Tape Drum Support shall be constructed of plastic material to prevent corrosion. All lift cords shall be guided by the Ladder/Tape Drum Support over a plated steel pin assembly to minimize wear on the lift cords and facilitate the operation of raising and lowering the blind. Routing the lift cords over a plastic surface shall not be allowed. Ladder/Tape Drum supports shall be held in place by a snap-on clip to ensure that they are firmly secured in position.
Consists of braided synthetic yarn with a minimum tensile strength of 130 lbs. Lift cords shall be securely fastened to the bottomrail at a distance not to exceed 48″ between cords. Standard lift cord shall have a zinc plated steel lift ring at the end to secure the blind in the “up” position during shipment of windows. Ring diameter shall not exceed .875″. Lift cord shall run over a .187″ diameter zinc plated steel pin in the headrail end cap to minimize wear on the cord and headrail end cap.
Standard mounting shall be accomplished using a 33% glass filled nylon mounting clip designed to match the profile of the headrail allowing the headrail to be “snapped” into place, and be removable.
Optional methods of installation to be a punched and dimpled hole in the headrail, or offset snap-in clip.
Tilt Control Knob
Standard tilt control knob shall be a maximum diameter of .500″ with serrations around its perimeter to facilitate operation. Tilt knob shall be designed to be fastened to the window using #10 pan head or #8 truss head fasteners.
Many other tilt knob options also available.
Flexible cable operators shall be constructed using brass or bronze coated high tensile steel wire wound in four layers to an outside diameter of .130″. Brass fittings on the ends of the flexible cables shall not be less than .3125″ in diameter. All fittings shall be crimped in six locations onto flexible cables to insure that the fittings will not work loose from the end of the cable under normal use conditions. Exposed cable shall be sheathed in .015″ thick weatherstrip grade vinyl. Cables attach to D-shaped steel control rod using #4-40 stainless steel set screws. Standard length of finished cables shall be 6″.
Optional fiberglass reinforced cable fittings which are molded directly onto the flexible cables can be specified so that jamb rods can be installed without the use of set screws.
Blind shall be designed with a slip mechanism which will minimize damage due to over tilting the blind. When the blind reaches its closed position and the tilt knob is turned, there will be no damage to the blind or its operational hardware.
The slip mechanism shall be accomplished by utilizing a 33% glass filled nylon tape drum assembly which will minimize discoloration of the ladder cord during long term operation.
Tilt Rod Assembly
The spring loaded tilt assembly within the headrail shall be designed to allow approximately 1″ lateral movement of the tilt rod away from the control end of the headrail.
Clear plastic spacers shall be used on the top slat at all ladder locations to insure proper tilting and alignment of the blind. Clear plastic injection molded tape spacers shall be used to eliminate scratches on the headrail and the second slat. *Continued efforts in product improvement may change specifications.*