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TEK28 - transverse section

Profile TEK28 - transverse section



TEK 28 is an innovative roofing element, realized by connection of a metal thin sheet with a coating of high density expanded polyurethane. Insulating coating, which goes along the corrugation in a symmetrical way, allows to have an insulated product, which can be at the same time integrated to Alubel 28 system, today’s most trusted and widely used roofing system.

Possible workings on TEK 28 insulated sheet:

notching
Controlled straining
Minimum slope

7% (This slope depends on the length of the sheets. Please refer anyway to local regulations.)

tek28 components

A) Alubel 28 metal profile

B) high density expanded polyurethane

C) polyurethane film or centesimal aluminium

TEK 28 insulated profile available in:

  • natural aluminium

    prepainted aluminium

    prepainted steel

    aluzinc

    copper

  • Lateral overlapping tek28

    Lateral overlapping of one corrugation and a half

  • Fixing on wood

    Fixing on wood

  • Fixing on metal

    Fixing on metal

  • Fixing on wall

    Fixing on wall

Standard colours

Prepainted aluminium

  • Simil RAL 3009 Oxide red
  • Simil RAL 9002 Grey white

Prepainted steel

  • Simil RAL 3009 Oxide red
  • Simil RAL 9002 Grey white

Special colours

prepainted aluminium

  • Simil RAL 5010 Gentian blue
  • Simil RAL 8017 Chocolate brown
  • Simil RAL 6005 Moss green
  • Simil RAL 9006 Silver
  • Simil RAL 7016 Anthracite grey

Prepainted steel

  • Simil RAL 5010 gentian blue
  • Simil RAL 8017 Chocolate brown
  • Simil RAL 6005 moss green
  • Simil RAL 9006 Silver

Technical features:

  • special overlapping TEK 28

    Special lateral overlapping


    The overlapping of a corrugation and a half is probably the most important characteristic, giving a better guarantee for watertightness even with low slopes.

  • Tek28 high workability

    High workability


    Also with the polyurethane insulation, Tek28 is always a high workable roofing system.

  • Tek28 high load bearing

    High load bearing resistance


    Laboratory tests have determined 20% higher flexural strength compared with a normal sheet.

  • TEK 28 condensation reduction

    Condensation reduction


    The presence of an insulation layer enables a considerable reduction of the condensation effect.

  • TEK 28 noise reduction

    Noise reduction


    Thanks to polyurethane application it was possible to reduce noise effect inside a building.

  • TEK 28 temperature reduction

    Temperature reduction


    As insulating material, polyurethane contributes to thermal comfort inside a building.

  • TEK 28 high ventilation

    High ventilation efficiency


    In the realisation of a ventilated roof, with its insulating core Tek 28 contributes to a better effectiveness of the ventilation.

  • tek 28 full range accessories

    Full range of accessories


    A real system of accessories has been created specifically and it completes and simplifies the realisation of the work.

Workings on TEK 28 profile

Standard notching


Tek 28 - 
	
  	Standard notching



A= min 175 mm - B= min 50 mm

S maximum sheets length
Ri Aluminium Other materials
1 m max 3 m max 3 m
2 m - 3 m max 3 m max 3 m
3 m - 4 m max 5 m max 5 m
4 m - 6 m max 6 m max 6 m
6 m - 7 m max 8 m max 8 m*
* extra standard workings

Partial notching


Tek 28 - 
	
	Partial notching


  Symbology
A Beginning part min 175 max 2000 mm
B Final part min 175 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 Inner radius min 400 mm
P Imprint distance min 35 mm
a Deflection angle min 1° - max 3° (steel)
min 1° - max 4° (aluminium)
* total development variable according to inner radius

Notching in the middle


Tek  28 - 
	
	Notching in the middle



Sheet curved only in the central part for ridge formation and connection of 2 pitches (obtained by a sequence of imprints on the middle of the sheet).
The straight parts A and B have a length which goes from a minimum of 175 mm to a maximum of 4000 mm.
S maximum sheets length
P Aluminium Other materials
6 % - 12 % max 10 m max 6 m
12 % - 15 % max 10 m max 6 m
15 % - 20 % max 8 m max 6 m
20 % - 25 % max 8 m max 4 m

Controlled straining


Tek 28 - 
Controlled straining



Workings dimensions

  minimum maximum
A 200 mm 4000 mm
B 200 mm 4000 mm
A+B - 6000 mm
C 100° 160°
Y Sheets with smoothed part

Ridge capping with crimp curve

Width 500 mm

  • Ridge capping
  • Ridge capping


Flat ridge capping

Width 625 mm

Maximum length 6000 mm

  • Flat ridge capping
  • Flat ridge capping


Standard two part ridge capping with serrated profile

width 834 mm

standard length: 2765 mm

  • Standard two part ridge capping with serrated profile
  • Standard two part ridge capping with serrated profile


Dual ridge capping with pressed profile detail

width 750 mm

standard length 1000 mm

  • Dual ridge capping with pressed profile detail
  • Dual ridge capping with pressed profile detail


Mono ridge upstand with pressed profile detail

Available development mm: 416 - 500 - 625 - 750

  • Mono ridge upstand with pressed profile detail
  • Mono ridge upstand with pressed profile detail


Transition piece/soaker for penetration


  • Transition piece/soaker for penetration
  • Transition piece/soaker for penetration


Closure section with serrated profile

width 100 mm

  • Closure section with serrated profile
  • Closure section with serrated profile


Mono ridge upstand with serrated profile

width 416 mm

Max suggested length 2765 mm

  • Mono ridge upstand with serrated profile
  • Mono ridge upstand with serrated profile


Profiled foam filler for ridge/caves


  • Profiled foam filler for ridge/caves


Soaker unit for dome rooflight/hatch


  • Soaker unit for dome rooflight/hatch


Aluminium grill walkway

Aluminium

3600 mm bars

  • sicurtetto Aluminium grill walkway
  • sicurtetto Aluminium grill walkway


Skylight frame

manual

  • manual Skylight frame


Skylight frame

electric

  • electric Skylight frame

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