UV shade fabric is made of UV stabilized cloth manufactured by ALNET, or approved equal.
The high-density polyethylene material shall be manufactured with tensioned fabric structures in mind.
The fabric knit is to be made using monofilament and tape filler which has a weight of 9.38 to 10.32 oz. sq. yd. Material to be Rachel-knitted to ensure material will not unravel if cut.
Burst strength of 828 lbf (ASTM 3786).
Cloth meets fire resistance tests as follows:
Alnet Extra Block: California State Fire Marshall Reg. #F-93501
Others: NFPA 701-99 (Test Method 2), ASTM E-84
Tear Tests (lbs/ft): WARP 44.8 and WEFT 44
Burst Tests (lbs ft): 828
Fabric Weight (oz/sqFT) Average: 1.02 to 1.07
Fabric Width: 9’-10”
Roll Length: 150’
Roll Size: 63” x 16.5”
Weight: 120 lbs.
Life Expectancy: 10 years
Fading: Minimum fading after 6 years (Note: 3 years for Red and Yellow)
Temperature: -77 degrees
Maximum Temperature: +167 degrees
Shall be 100% expanded PTFE fiber which carries a 10-year warranty that is high strength and low shrinkage.
Shall have a wide temperature and humidity range.
Abrasion resistant and UV radiation immunity.
Shall be unaffected by non-hydrocarbon based cleaning agents, acid rain, mildew, rot, chlorine, saltwater, and pollution.
Lockstitch thread – 1200 Denier or equal.
Chain stitch thread – 2400 Denier or equal.
All fabricated steel must be in accordance with approved shop drawings and calculations.
All steel is cleaned, degreased or etched to ensure proper adhesion of powder-coat in accordance with manufacturer’s specifications.
All Steel used on this project needs to be new and accompanied by the mill certificates if requested. Structural steel tubing up to 5”-7 gauge shall be galvanized per Allied Steel FLO-COAT specifications. Schedule 40 black pipe fabrications shall be sandblasted and primed as described below.
All non-hollow structural shapes comply with ASTM A-36, unless otherwise noted.
All hollow structural steel shapes shall be cold formed HSS ASTM A-53 grade C, unless otherwise noted.
Plate products shall comply with ASTM A-36.
POWDER COATING AND PRIMING
All non-galvanized steel shall be sandblasted and primed prior to powder coating using brown fused aluminum oxide grit and the following primer.
All non-galvanized steel must be coated with rust inhibiting primer prior to applying the powder coat. Primer shall be Marine Grade Cardinal Industrial Finishes Corp. E396 – GR1372 epoxy powder coating semi-gloss smooth zinc rich primer.
Welds shall be primed with rust inhibiting primer prior to applying the powder coat. Primer shall be Marine Grade Cardinal Industrial Finishes Corp E396-GR1372 epoxy powder coating semi-gloss smooth zinc rich primer.
All steel parts shall be coated for rust protection and finished with a minimum 3.5 mil thick UV-inhibited weather resistant powder coating.
Powder used in the powder-coat process shall have the following characteristics:
N.3.1 | Specific Gravity | 1.68+/-0.05
N.3.2 | Theoretical Coverage | 114+/-4 ft. 2/lb/mil
N.5.1 | Electrostatic Spray Cold | Substrate: 0.032 in. CRS
N.5.2 | Cure Schedule | 10 Minutes at 400° F
N.5.3 | Pretreatment | Bonderite 1000
N.5.4 | Film Thickness | 3.5 Mils
All shop welds shall be executed in accordance with the latest edition of the American Welding Society Specifications.
Welding procedures shall comply in accordance with the AWS D1.1-AWS Structural Welding Code-Steel.
All welds to be performed by a certified welder. All welds shall be continuous where length is not given unless otherwise shown or noted on drawings.
All welds shall develop the full strength of the weaker member. All welds shall be made using E70xx.035 wire.
Shop connections shall be welded unless noted otherwise. Field connections shall be indicated on the drawings. Field –welded connections are not acceptable.
All fillet welds shall be a minimum of ¼” unless otherwise noted.
All steel shall be welded shut at terminations to prevent internal leakage.
Internal weld sleeving is not acceptable.
On-site welding of any component is not acceptable.
On-site sewing of a fabric will not be accepted.
All corners shall be reinforced with extra non-tear cloth and strap to distribute the load.
The perimeters that contain the cables shall be double lock stitched.
Bolt and fastening hardware shall be determined based on calculated engineering loads.
All bolts shall comply with SAE-J429 (Grade 8) or ASTM A325 (Grade BD). All nuts shall comply with ASTM F-594, alloy Group 1 or 2.
Upon request, Stainless Steel hardware shall comply with ASTM A-304.
1/4” galvanized wire rope shall be 7x19 strand with a breaking strength of 7,000 lbs. for shades generally under 575 sq. ft. unless requested larger by the customer. For shades over 575 sq. ft., cable shall be 5/16” with a breaking strength of 9,800 lbs. Upon request, 1/4” Stainless Steel wire rope shall be 7x19 strand with a breaking strength of 6,400 lbs. 5/16” Stainless Steel wire rope shall be 7/19 strand with a breaking strength of 9,000 lbs.
All fittings required for proper securing of the cable are hot dipped galvanized.
Concrete work shall be executed in accordance with the latest edition of American Concrete Building Code ACI 318 unless specified by the governing municipality.
Concrete specifications shall comply in accordance with, and detailed as per plans as follows:
28 Days Strength F’c = 2500 psi
Portland Cement shall conform to C-150
Aggregate shall conform to ASTM C-33
All reinforcement shall conform to ASTM A-615 grade 60.
Reinforcing steel shall be detailed, fabricated and placed in accordance with the latest ACI Detailing Manual and Manual of Standard Practice.
Whenever daily ambient temperatures are below 80 degrees Fahrenheit, the contractor may have mix accelerators and hot water added at the batch plant (See Table 1).
The contractor shall not pour any concrete when daily ambient temperature is below 55° F.