It'due south a little-understood part of the covering procedure – and really, nosotros aren't surprised.

While crucial, it's also somewhat… bland.

Who wants to talk almost metallic roof approximate when they could exist talking about the more than exciting stuff, similar:

  • What color your brand new metal roof is going to be?
  • How a new metallic roof is going to increase your dwelling'due south value ?
  • The ease-of-maintenance that comes with metallic roofing?

If you ask us, roof gauge is up in that location with roof plumbing, ventilation and air gaps equally one of the most important criteria when planning metallic roof installation in Melbourne .

And it's also ane of the to the lowest degree understood!

With a fleck of luck still, once you're done reading this, you'll take a better thought about the importance of roof gauge (and more importantly, which gauge is right for you).

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What is a roof estimate, anyway?

In a give-and-take: thickness.

Roof judge plays a crucial office in how stiff and durable your metal roof is. Depending on the application, one particular gauge might be more suitable given the circumstances.

Agreement which guess your metal roofing installation in Melbourne should utilize is an important decision – you simply get one shot at information technology (after all, you lot can't rip up your roof and start over!)

And making that decision begins by understanding what gauge is best suited for your upcoming roofing project.

In Australia, we employ BMT to measure the thickness of steel sheets for covering.

What is BMT?

Why not but apply millimetres?

Simple: because today's metal covering panels aren't only a simple sheet of steel (or copper, or tin can, or zinc) anymore.

Let's wait at COLORBOND metallic roofing as an case. On acme of a unique steel alloy optimised for strength, COLORBOND covering is also covered with protective coatings and layers that help protect them from the harsh Australian conditions .

This is what makes today'southward metal roofs considerably stronger than the roofs of erstwhile. It also makes millimetres a less-than-platonic way of gauging (go it?) thickness, every bit it doesn't tell you how much is actual metallic, and how much is coating.

Enter BMT , or Base of operations Metal Thickness .

Substantially, BMT measures the thickness of the metal itself before whatsoever protective layers and paint are applied in millimetres. So 0.50BMT tells united states that the steel base of this item sail is 0.5mm thick without coatings, primers or pigment.

By contrast, we too have TCT, or Total Coated Thickness which, like the proper name suggests, measures the total thickness, coatings included.

When looking at covering panels, it'due south of import to figure out what you lot're dealing with. While the number is the same, 0.40BMT and 0.40TCT are completely different things – indeed, the first is finer thicker (and therefore, stronger) than the 2nd!

When planning for metal roofing installation in Melbourne, it'south important that yous know the difference between these 2 measurements – it could save you a whole load of trouble!

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The earth-shaking question: which gauge should you use for your metal roofing installation?

The answer: it depends!

Thankfully, when it comes to corrugated metal roofing (the wavy stuff), there are 3 common gauges in utilise in Australia:

  • 0.42 BMT
  • 0.48 BMT
  • 0.threescore BMT

These are the gauges that COLORBOND uses for its metal roofing (and as the biggest and most reputable manufacturer in Commonwealth of australia, many smaller players also utilize these gauges).

But which ane is right for y'all?

Should I employ 0.42 BMT?

Used predominantly for domestic metal covering installation, 0.42 BMT is the most common of the three on Melbourne homes.

For most homes, this is more than enough to bargain with the types of conditions weather we experience here in Melbourne.

0.42 BMT approximate is adequate for well-nigh homes in the urban center, and is resistant to denting and other types of damage and habiliment your roof may feel throughout the yr.

Of course, if you're worried about denting and buckling, there's null stopping y'all from upgrading to a thicker gauge!

For case, say your projection also calls for a roof-mounted air conditioner, solar panels, or a satellite dish.

Work on any of these three volition require someone to climb onto your roof – while information technology can take hailstones, 0.42 BMT has a harder time taking the full weight of a tradie and their equipment!

In these cases, our metallic covering experts recommend opting for a thicker estimate, at least for the area around your A/C or satellite dish.

What about 0.48 BMT?

Unlike its thinner cousin, 0.48 BMT is used primarily in industrial applications.

Part of this is due to the boost in strength and durability that comes from the added thickness.

Another reason for this however is that in many cases, information technology'due south chosen to cut costs!

Metal framing is expensive – the less of it used, the ameliorate.

By choosing a thicker gauge for the roof, architects and structural engineers tin get away with spacing out the roof trusses. The thicker roof compensates for the fact that trusses are farther apart now.

This isn't really a business for homes, where roof surface area tends to be much smaller (not to mention, almost Aussie homes use cheaper wood framing, making this less of a business).

And what virtually 0.60 BMT?

One of the strengths of metallic covering is that it can be used in a much wider range of applications than tile. You accept way more leeway in terms of:

  • Pitch and angle
  • Shape (think the wavy roof at Southern Cross Station )
  • Design and appearance

That'due south why metallic is the covering of choice for weird roofs , including steep, flat and curved roofs.

Here'south something you may not have known about the terminal one, however: while curved roofs look fantastic, angle metallic can also potentially weaken it.

Hence, the need for 0.60BMT gauge!

Will your metal roofing installation expect something similar this ? To compensate for the effect bending can accept, 0.60BMT roofing can be used to increase the immovability and strength of your roof.

There's no rule maxim that these are the But times each gauge is appropriate…

If your budget permits, there'due south zippo wrong with asking your metal roof installation team to upgrade to a thicker gauge for your roof.

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Planning metallic roofing installation in Melbourne?

Or metal roofing repairs? Or a gutter inspection?

If so, you'll need to choose a gauge that's appropriate for your dwelling and circumstances.

Of course, that isn't the merely decision you lot'll have to make when planning for metal roof installation in Melbourne – at that place'south also the question of metal type, installation method, fasteners and roofing product.

It'due south a lot to take in – thankfully, our team of metal roofing experts can help.

Nosotros'll work with you and your builder, answering all your questions about metal covering and ensuring that you lot cull a judge that won't leave y'all with dents, leaks and other impairment.

Whether it'south metallic roof repairs , a elementary gutter repair or a totally new roof, nosotros're the team to call.

Nosotros bring 20 years of experience to bear on metal roofs all over Melbourne , ensuring that your roof is strong, durable and that it looks fantastic!

For a stronger roof that adds value to your habitation, call our Masterful metal roofing team today. Give us a call on 1300 156 650 , or click here to arrive touch online .