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SJ Roofing - Residential Roofing,
Commercial Roofing, Butynol 
in Upper Hutt, Lower Hutt and 
SJ Roofing 30 years experience, Upper Hutt, Lower Hutt and Wellington

S.J Roofing Ltd

Since 1992

Commercial Roofing

Commercial and Industrial Roofing Upper Hutt, Lower Hutt and Wellington

At SJ Roofing we've worked on a number of significant commercial projects and our clients trust us to deliver on time and on budget.  

We've made an investment in our team to ensure they are all fully trained, experienced and have Site Safe certification.  We are members of the New Zealand Roofing Association and have been in the industry for over 30 years.

We can bring that experience to your next commercial project whether it's a storage warehouse, retail building, or hangar.  We will ensure that there's minimal disruption to your business and clients.

For your peace of mind we are fully insured and supply and fit only the very best quality materials.  We can work under a main contractor or directly with your site manager.

We are happy to consult with you to produce a plan for the works, or to have a chat about your options.

Ultra Longrun

Ultra Long Run Roofing, Commercial Upper Hutt, Lower Hutt and Wellington

When your commercial project requires extra long lengths, SJ Roofing can supply the longest lengths in the business.  

Ultra longrun can be supplied in lengths up to an impressive 35 metres.

That means fewer joins and longer spans to protect your commercial investment.

Contact us for information or advice on your commercial project, whether you are still in the planning stage or ready for delivery.


RT7® is a medium height long run trapezoidal roofing profile which has an exceptional strength to weight ratio, and further,
provides impressive spanning capability, water carrying capacity and all at a relatively low pitch.

Manufactured from high tensile material and supplied in a range of substrates and surface finishes, RT7® is equally impressive when utilised in Commercial or industrial Roofing and Cladding applications and lends itself to a wide range of design options.

A purpose designed stiffened under-lapping support leg offers:

  • Extra support for the over-lapping edge 
  • Prevents separation of the lapping edge
  • Prevents water ingress at the laps
  • Prevents deformation when screwing off the roof 
  • Roofing installer friendly and saves on installation costs
  • As the laps remain closed RT7® Provides uniform lines

  • Can be draped curved 
  • Available reverse-run
  • Bold and visually appealing

  • Commercial and industrial roofing
  • Residential roofing
  • Cladding in standard or reverse run profile
  • Drape curving
  • Crimp curving
  • Fencing
  • Garage door cladding

Commercial Projects Showcase