Palram PALSU - Manual (Page 17)

PALSUN® Technical Guide
17
PALSUN® Recommended Panel Width for Curved Installation - US Customary
Maximum Recommended on Center Distance between Supporting Arches
Thickness
Sheet Curvature
Radius
(mm)
Max. Recommended on Center Distance between Supporting Arches
According to Wind/Snow Loads Below (in.)
Uniform Wind/Snow Loads (psf )
In. mm In. Ft. 10 15 20 25 30 40 50 60
5 /
32
” 4mm
28 2’ – 4” 81 81 81 81 81 75 69 63
36 3’ 81 81 73 65 59 53 48 40
44 3’-8” 81 75 69 63 57 50 42 36
52 4’-4” 77 71 65 58 52 47 40 36
59 4’-11” 71 65 59 54 48 42 36 36
71 5’-11” 65 62 56 52 45 38 33 28
79 6’-7” 62 58 53 50 42 35 30 26
87 7’-3” 59 55 51 47 39 32 27 24
110 9’-2” 53 50 47 44 36 29 24 NA
158 13’-2” 48 42 38 34 31 26 18 NA
236 19’-8” 34 31 29 26 24 18 NA NA
13 /
64
” 5mm
36 3’ 81 81 81 81 81 81 75 69
44 3’-8” 81 81 81 81 81 75 69 63
52 4’-4” 81 81 81 81 77 69 63 57
59 4’-11” 81 81 81 77 73 67 61 55
71 5’-11” 81 81 77 73 69 61 53 46
79 6’-7” 81 77 73 69 61 53 46 42
87 7’-3” 77 73 69 65 59 51 44 40
110 9’-2” 63 59 55 51 48 42 36 30
158 13’-2” 55 51 48 44 40 34 30 20
236 19’-8” 48 42 38 34 30 20 450 NA
1 /
4
” 6mm
44 3’-8” 81 81 81 81 81 79 75 69
52 4’-4” 81 81 81 81 81 75 69 63
59 4’-11” 81 81 81 81 75 69 63 57
71 5’-11” 81 81 81 77 71 65 59 53
79 6’-7” 81 81 77 73 67 61 55 50
87 7’-3” 81 77 73 69 65 59 53 48
110 9’-2” 67 63 59 55 51 46 40 34
158 13’-2” 63 59 55 51 46 40 34 29
236 19’-8” 58 54 51 48 43 37 31 21
5 /
16
” 8mm
59 4’-11” 81 81 81 81 81 75 69 63
71 5’-11” 81 81 81 81 77 71 65 59
79 6’-7” 81 81 81 79 75 69 63 57
87 7’-3” 81 81 81 77 73 67 61 55
98 8’-2” 81 81 76 73 68 62 56 50
110 9’-2” 81 77 72 68 63 57 51 46
158 13’-2” 77 72 68 64 59 53 48 40
236 19’-8” 72 66 60 54 50 44 38 31
13 /
32
” 10mm
71 5’-11” 81 81 81 81 81 77 71 65
87 7’-3” 81 81 81 81 79 73 67 61
110 9’-2” 81 81 81 77 71 69 63 57
158 13’-2” 81 81 79 75 70 64 58 52
236 19’-8” 81 76 72 68 61 55 50 44
1 /
2
” 12mm
87 7’-3” 81 81 81 81 81 81 77 71
110 9’-2” 81 81 81 81 81 77 71 65
158 13’-2” 81 81 81 81 77 71 65 58
236 19’-8” 81 81 81 77 68 62 56 51
Notes for Tables “PALSUN® Recommended Panel Width for Curved Installation”:
1. PALSUN glazing sheets should be installed with their curved edges sustained on the supporting arches, with 15 to 25mm (5/8” to 1”) edge engagement, depending
on the span, in addition to a thermal expansion gap of 2-3mm (3/32”- 1/8”).
2. Thin sheets up to 6mm (¼”) can be bent as relatively short glazing panels, 2m to 3m at 1000 to1220mm width (6’7” to10’ length, at 40” to 48” width). Thick 8mm
sheets (5/16”) and above can be cold curved only as special long panels 4m to 7m (13’ 2” to 23’), particularly when full width of 2050mm (6’ 9”) or similar is installed.
3. Supporting arches and clamps should withstand total maximum permitted loads without difficulty.
4. Spans under 500mm (20”) are generally impractical for an installation method of this type.
5. The lowest radius value indicated is the minimal permitted radius for that specific PALSUN sheet.
6. Indicated spans are suitable for most common stationary structures, under pressure or uplift loads. Special structures, like mobile pool covers, may use wider spans,
subject to preceding approval.