City top,metal roofing,wall cladding,prepainted,steel roof framing ,steel products Structural Components
  Home PageAbout UsMetal RoofsRainwaterMaterialsProjectsSupportContact UsMore InfoIntro  
 

CityTop manufactures high quality, light weight structural cold-rolled components for supporting all types of roofs. Generally most of our structural products are roll-formed. If you have an unusual requirement, contact us as we maybe able to form that the shape by using our press brakes & folding equipement.

If you are looking for the complete roofing system, consider using our Megatruss Steel Roof Framing System.

 Purlins

Material Specification

Cross Sect. Height  
Base Steel Thickness
Steel Grade

Yield Stress 
Zinc Coating
Mechanical Property


Tolerences

 

: Cross Sect. Height 100mm, 150mm,
   200mm
: 1.60mm, 2.0mm and 2.50mm
: ASTM A446 Grade E Modified
  (AS 1397 - G450)
: 450 Mpa (Minimum)
: 275 g/Sq.mYield Stress
: Y/P 450 MPa (Minimum)
  T/S Min 510 Mpa
  E/L Min 10%
: Depth               : + 1mm
: Flange Width    : + 2mm
: Length              : + 3mm
: Hole Centres     : + 1.5m

 citypurlins2.jpg
  Battens

Material Specification

Cross Sect. Height  
Base Steel Thickness
Steel Grade

Yield Stress 
Zinc Coating
Mechanical Property

 

: Cross Sect. Height 45mm, 75mm
: 0.55mm, 0.75mm
: ASTM A446 Grade E Modified
  (AS 1397 - G450)
: 450 Mpa (Minimum)
: 275 g/Sq.m
Yield Stress
: Y/P 450 MPa (Minimum)
  T/S Min 510 Mpa
  E/L Min 10%

       citybattens.jpg

MegaTruss

Steel Roof Framing System


" Light,
Strong,
& Versatil
e
System"


"Designed by
CityTop" 

" Checked & Signed by independent Consultant"

megatrussbanner.jpg

 

 


MegaTruss Steel Roof Framing System
is the ultimate solution to replace traditional timber or welded hot-rolled steel truss. This structures are designed and built for life. Outstanding benefits include:

  • High corrosion resistance
  • Lightweight resulting in savings on the overall cost of building
  • Non-combustible
  • Resists warping, twisting, shrinking & deteoration
  • Engineered & dimensionally accurate resulting in true surface for fixing of internal linings
  • Hot dip Galvanise steel
  • High Strength - Low cost
  • Design Versality
  • Consistent standard

The list of benifits go on & on.


"Specify CityTop Megatruss systems for your next roofing Project!"

General Specification

Truss System

Truss Span

Truss Spacing

Roof Pitches
Wind Conditions
Truss Members





Connections


Plates


Available Manuals

 

: Megatruss (light gauge cold - fomed 
  frraming system)
: Up to 15m for tile & sheet roof
  construction
: Up to 1500mm centers to 3000mm
  Centers
: 15 to 30 degrees
: W27N, W33N, W41C, W50C
: Top & Bottom Chords fabricated
  from 1.2mm BMT G550 AZ150 or
  1.0mm BMT G550 Z150 U Channel.
  Truss Webs fabricated from 0.75mm
  BMT G550 AZ150 or 1.0mm BMT
  G550 AZ150 C Channel.
: Self drilling screws or self piercing
  rivets depending on combinations of
  the above parameters.
: Heel Brackets and apex plate 1.2mm
  BMT G450 AZ150

: Roof Truss Specifications
  MegaTruss Engineering Handbook
  Roof Truss Installation Manual

 

 Typical Installation

arkibtruss.jpg



arkibtruss2.jpg

More Information....