Roof Guard has all your metal roofing under control. We employee a number of roof plumbers who are qualified to complete your project. From a new kilp-lok garage roof to complete colourbond re-roof we have it all covered. Here you will find some information on the metal roofing products we offer.

It has become a common practise to replace tiled roofs with colourbond or metal roofing equivalents. There are many advantages that come with replacing tiles with metal. Steel roofing is one of the most thermally efficient roofing materials available, it has superior corrosion resistance, excellent resistance to hail, when installed correctly it will be maintenance free and it looks great. Keep in mind that the time needs to be taken to choose the right products for the right situations.

Metal Roofing

Compatability

The first thing that must be considered when starting a metal roof renewal is the compatibility of the new and existing materials. All building products need to be checked for compatibility with adjacent materials. These checks need to be for both direct contact between materials, and where water runs from one material to another.

The following guidelines generally avoid material incompatibility:
For zinc-aluminium alloy coated steel, colour coated steel and galvanised steel roofs avoid copper, lead, green or treated timber, stainless steel and mortar or concrete.

In addition galvanised steel roofs should not receive drainage from aluminium or any inert materials, such as plastics, glass, glazed tiles, colour coated and zinc-aluminium alloy.

Galvanised Steel

This was the main option of steel to choose from up until the mid 8O’s. These days it has been replaced by steel with much better effectiveness and efficiency. The only reason that we would install galvanised steel these days would be to comply with compatibility issues.

Zincalume Steel

Zincalume steel or “zinc” is the newer and improved version of galvanised steel. Zinc is much more resilient against corrosion and has a modern, aesthetically pleasing look. Zincalume steel carries a 25 year warranty from BlueScope Steel.

Colourbond Steel

For the past few decades colourbond steel has been the popular choice for many Australians and their roofing needs. Colourbond steel is developed for, and therefore more resilient to the intense sunlight and temperatures typical of Australian enviroments. Featuring a 22 designer-colour palette and advanced paint technology provides a durable, baked-on paint finish that resists peeling, chipping and cracking.
BlueScope Steel offers a warranty against corrosion to perforation by weathering in the natural elements for a period of upto 36years from the date of installation. They also warrant that the paint system on colourbond steel will not flake or peel due to natural weathering for a period of up to 20 years from the date of installation.

 


Profiles

Once the type of material being used has been chosen it’s time to decide on the profile for the roof. This will be determined by the pitch of the roof and the length of the sheets to be installed. The pitch of the roof is most important in determining the profile used. A lower pitched roof will need a profile that has high sides as water will not be dispersed as quickly as a higher pitched roof. For example if a corrugated sheet is used on a roof with a pitch less than 5 °, it would quickly become submerged under water in a downpour. The end result of this could be catastrophic causing possible leaks and structural damage into the house.

The four main profiles we use are the following:

Corrugated

Corrugated
Still favoured for traditional styled housing, it is also the first choice for contemporary steel-roofed homes. Features include:

  • Economical- low cost roof cladding
  • Easy fixing- conventional through fixed screws maximise performance and installation
  • 762mm cover- quick installation and easy handling
  • 5 °minimum pitch- to suit most traditional applications
  • Anti-capillary side caps
  • Curving quality- available in G300 steel for architectural roofs or bullnosing

Longspan

Longspan
The striking linearity, strength, wide cover, light weight and weather resistance of the longspan cladding make it perfect for many commercial roofing applications. It’s excellent strength and ease of assembly allow for long economical spans. The water carrying capacity and weather tightness permit very low roof pitches. Longspan is also used for domestic applications, where a strong but uniform appearance is required. Features include:

  • Easy fixing- conventional through fixed screws maximise performance and installation
  • 700mm cover- quick installation and easy handling
  • Spring curving- new data for curved roofs available
  • Extended spans – strength and rigidity of the profile allow economical construction

Monoclad

Monoclad
The striking linearity, strength, wide cover, light weight and weather resistance of the monoclad cladding make it perfect for many commercial roofing applications. It’s excellent strength and ease of assembly allow for long economical spans. The water carrying capacity and weather tightness permit very low roof pitches. Monoclad is also used for domestic applications, where a strong but uniform appearance is required. Features include:

  • Economical- unique blend of characteristics provides low install costs
  • Simple installation- through fixing and easy notching of flashings
  • 762mm cover- quick installation and easy handling
  • Deep Ribs- provide excellent spanning capability with good water carrying capacity
  • Anti- capillary side laps- gives improved weather protection
  • 2° Minimum pitch- reduces support structure

Speed Deck

Speed-Dek
Otherwise known as kilp-lok roofing. The visual appeal, strength, wide cover and weather resistance of speed deck make it perfect for all commercial roofing applications. The large water carrying capacity and weather tightness permit very low roof pitches. Speed deck is also used in domestic applications. Features include:

  • Wide cover – 700mm
  • Compatible lap join system which allows in-plane long run roofs and provides a solution for limited access sites
  • Deep ribs- Stronger and stiffer with better water carrying capacity for roof slopes as low as 1°
  • Full length clips- to locate ribs and compress insulation
  • Four fixing points per clip
  • Outstanding wind load resistance
  • Spring curving available for arched and curved roofs