Polygal Standard grade | Multiwall Sheet

Combines endless design possibilities with many important advantages:

Polygal Standard Sheets double and triple layered, manufactured in various colors and degrees of transparency, are designed for use in most conventional roofing and glazing applications.

  • Excellent thermal insulation
  • Highly flexible, yet virtually unbreakable
  • Lightweight and easy to install
  • Rigid sheet structure provides extra strength under wind and snow loads. To see sheet performance under loads, go to “Support / Wind Load Charts”.

Standard Sheets feature a UV protective layer to protect against yellowing, and are covered by a 10 Year Warranty against breakage and yellowing (6 mm and higher).

Recommended Uses: Covering of medium span structures where excellent thermal insulation is required. 		Polygal's Standard Grade
Technical Specifications:
Structure
Polygal Standard Grade 4-6
Polygal Standard Grade 8-10
Polygal Standard Grade 16
Thickness (mm)
4
6
8
10
16
Weight g/m²
800
1300
1500
1700
2700
lb / ft²
0.16
0.27
0.31
0.35
0.55
Standard width mm
980, 1050, 1200, 1220, 1250, 2100
inch
48"
72"
Minimum radius for mm
0.7
1.05
1.4
1.75
2.8
cold bending arches inch
2' 3"
3' 5"
4' 7"
5' 9"
9' 2"
U-Factor by ASTM C177 W / m² • ºС
3.9
3.6
3.3
3
2.3
Btu / h • ft² • fº
0.69
0.63
0.58
0.53
0.41

 

Optical Specification :
Thickness
Light Transmission (%) by ASTM D 1003
(mm)
Clear
NGL*
ICE
bronze
snow
grey
green
red
orange
blue
turquoise
yellow
4
82
-
32
42
25
30
30
20
55
30
52
70
6
80
16
8
80
25
12
10
79
42
12
16
72
35
16