Palram PALSU - Manual (Page 14)

14
Determination of Required Sheet Dimensions
The information below is presented to assist in ordering the required dimensions.
Determination of Sheet Size
Due to thermal expansion, PALSUN & PALTUF sheets have to be cut
accurately at predetermined lengths smaller than the dimensions
of the frame. At the end of the frame, clearance must be left for
expansion. The following tables and diagram help calculate the
required sheet dimensions. In addition, there is a table showing
the expansion clearance necessary for various sizes of PALSUN &
PALTUF sheets.
Determination of Thickness
In order to determine the required thickness, the following table
lists the sheet thickness required for a given wind load and width
(at the narrow side of the sheet).
PALSUN® Recommended Panel width
Wind/Snow Load Chart for Flat 4 Sides Clamped, Single Panel, Single Span
Thickness
Load
(kg/m2)
Length / Width Ratio (b/a)
Ratio 1:1 Ratio 1.25:1 Ratio 1.5:1 Ratio 1.75:1 Ratio 2:1
4mm
50 985 875 820 795 785
75 860 765 715 695 685
100 780 695 650 630 620
125 725 645 605 585 575
150 685 605 570 550 540
175 650 575 540 525 515
200 620 550 515 500 490
5mm
50 1235 1090 1025 995 980
75 1075 955 895 870 855
100 980 865 815 790 775
125 910 805 755 730 720
150 855 755 710 690 680
175 810 720 675 655 645
200 775 685 645 625 615
6mm
50 1450 1300 1225 1200 1175
75 1300 1150 1075 1050 1025
100 1175 1025 975 950 925
125 1090 965 910 885 865
150 1025 910 850 830 815
175 975 865 810 790 775
200 925 825 775 755 740
A
A
a - width
B B A-A
B-B
b - length