Workings

Workings

As for Alubel 28, also Tek 28 is a roofing system for which several workings have been developed.

Overlapping

Overlapping Tek 28
L min 2200 mm - max 13500 mm
T min 150 mm - max 300mm
standard: 150-200-250-300 mm
Double overlapping
  • minimum length 4500 mm
  • maximum length 13500 mm
Double overlapping Tek 28
Double overlapping Tek 28 sheet

Bending

In spite of the presence of a polyurethane core, thanks to the know-how consolidated through years, we were able to develop different types of curving that preserve the characteristics of Tek 28 and anyway allow the sheet to adapt to various contexts of application.

Standard notching

standard notching Tek 28 sheets
Ri S = max sheet length
aluminium other materials
from 3 to 4 m max 5 m max 5 m
from 4 to 6 m max 6 m max 6 m

Partial notching

partial notching Tek 28 sheets
A begining part min 50 max 2000 mm**
B final part min 50 max 2000 mm**
S curved development min 100 mm
A+B+S total development (aluminium) max 5000 mm*
A+B+S total development (other materials) max 5000 mm*
Ri internal radius min 400 mm
P imprint distance min 35 mm
a deflection corner (aluminium) min 1° max 3°
a deflection corner (other materials) min 1° max 2° (steel)
* total length variable following internal radius
** A or B, minimum 250 mm

Notching in the middle

notching in the middle Tek 28 sheets
P S = max sheet length
aluminium other materials
from 6 to 12 % max 10 m max 6 m
from 12 to 15 % max 10 m max 6 m
from 15 to 20 % max 8 m max 6 m
from 20 to 25 % max 8 m max 4 m

Controlled straining

controlled straining Tek 28 sheets
Workings dimensions
minimum maximum
A 200 mm 4000 mm
B 200 mm 4000 mm
A + B -- 6000 mm
C 105° 160°
Y sheets with lateral cut

This website use cookies, including those by third parties, to improve our services. By closing this banner, or scrolling down this page or clicking any element, you consent to the use of cookies. More information