How to Specify Tenn-Air Windscreen
Special Requirements
- Windscreen panels shall be TENN-AIR, Model DC-61P or an approved equal evidencing a minimum of four years of satisfactory field performance experience.
- Supplier: TENN-AIR panels shall be as supplied by the M. Putterman Company or its authorized representative.
- The successful bidder shall provide a three year warranty covering peeling, cracking and coating as well as the U.C.C. Implied warranties of merchantability and suitability for the purpose intended.
Materials
- Fabric: the fabric furnished shall be woven from 3.0 ounce per square yard polyester material and coated after weaving weather 6.0 ounce per square yard coating of dark poly vinyl chloride coating, for a total weight of 9.0 ounces per square yard. Color shall be special green per color chip DC-61P.
- Tensile strength when tested per the grab method shall be 230 x 200 pounds and when tested by the strip method, shall be 200 x 140 pounds.
- Coating: the weather protective coating system shall be formulated to comply with the following minimum test performance standards:
| Property |
Test Method |
Specification |
| Water Absorption |
ASTM-D-471 7 days @ 160 degrees F |
5.0% maximum weight gain |
| Plasticizer Extraction by Water |
ASTM-D-1239 Modified |
6.0% maximum weight loss |
| Wicking |
PUTTERMAN Procedure: 24 hours Room Temperature |
1/8" Maximum |
| Weathering |
Carbon-Arc ASTM-D-750 2500 hours minimum |
No appreciable change in color, no cracking or crazing |
Fabrication
- Hems and Seams: All hems shall be four-ply reinforced with heavy duty 1 oz. vinyl coated nylon. Windscreens 9' high shall have a center seam with internal reinforcement as above. All hems and seams are to be sewn with #7 weather and ultraviolet light resistant dacron thread.
- Grommets: Grommets shall be of brass material spaced at a maximum of 12" apart on all hems. A 9' high windscreen center seam shall have grommets as above.
- Air vents: Die cut air vents shall be placed a maximum of 10' apart
Measuring your Fence for Windscreen
- Make sure you begin at a terminal post (corner) and continue to the next terminal post. DO NOT HOLD YOUR TAPE UP TO THE FENCE. This will create a slack which could cause your windscreen to be too long.
- Measure inside tension bar to inside tension bar. You may disregard line posts (unless they are courtside). For ease of handling, remember that windscreen sections should not be more than 60 or 70 feet. EXACT MEASUREMENTS ARE NECESSARY (including feet and inches). Do not guess and do not round off inches to feet (either larger or smaller), NO TWO FENCES ARE IDENTICAL.
TECHNICAL SPECIFICATIONS TENNA®
1.0 Material Description
TENNA ® curtains shall consist of a high tenacity filament polyester cloth, tightly woven, weighing 6.0oz. per square yard minimum and multiple pass spread coated with PVC to an overall weight of 20oz. per square yard. Coating and color on face and back side to be as specified.
| 2.0 Material Mechanical Properties |
Fed. Standard 191-Method |
| 1. tensile Strength: Warp 500, Fill 400 |
5100 |
| 2. Tear Strength: Warp 100 lbs., Fill 100 lbs., |
5134.5 |
| 3. Adhesion of Coating: 25 lbd.,/2 inches |
5970 |
| 4. Puncture Resistance: 125lbs. with |
5120 |
| .031" chisel tip | 5903 |