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With the introduction of a new BRANZ-appraised batten cap roofing system, known as Quick Batten Tray or QBT 450™, the roofing sector is about to change. Lifting the lid on products and systems that have traditionally been used in New Zealand, QBT 450™ is a system that allows for significant cost savings to a Batten Cap type profile, and a range of unique, striking finishes.

Batten cap roofing creates a dramatic aesthetic and has been particularly popular in the South Island where homes often allude to the gabled vernacular in form. “Batten cap roofing is particularly suited to this sort of design but it makes a bold statement in all sorts of designs,” The Architectural Roofing Company’s Bruce Gibson says.

Standard batten cap roofing systems require solid plywood sarking substrates, which adds a significant amount to the cost of installing a batten cap roof. The QBT 450™ system was designed to be installed directly over open purlins, reducing cost by removing the need for a plywood substrate, and also in terms of labour being able to be installed much more efficiently.

“Normally too, with batten cap roofing, you lay the trays down and then put the caps on top. What is different about QBT 450™ is that this profile has the cap and tray all in one piece reducing installation time even further,” Bruce says.

With the introduction of a new BRANZ-appraised batten cap roofing system, known as Quick Batten Tray or QBT 450™, the roofing sector is about to change. Lifting the lid on products and systems that have traditionally been used in New Zealand, QBT 450™ is a system that allows for significant cost savings to a Batten Cap type profile, and a range of unique, striking finishes.

Batten cap roofing creates a dramatic aesthetic and has been particularly popular in the South Island where homes often allude to the gabled vernacular in form. “Batten cap roofing is particularly suited to this sort of design but it makes a bold statement in all sorts of designs,” The Architectural Roofing Company’s Bruce Gibson says.

Standard batten cap roofing systems require solid plywood sarking substrates, which adds a significant amount to the cost of installing a batten cap roof. The QBT 450™ system was designed to be installed directly over open purlins, reducing cost by removing the need for a plywood substrate, and also in terms of labour being able to be installed much more efficiently.

“Normally too, with batten cap roofing, you lay the trays down and then put the caps on top. What is different about QBT 450™ is that this profile has the cap and tray all in one piece reducing installation time even further,” Bruce says.

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Ventilation is a crucial part of any roofing system, and something that has been developed within the QBT 450™ batten cap system also. “It’s a true ventilated roof system. The way it has been designed with the vapour barrier over the trusses means the roof space is properly ventilated,” Bruce says. “Any condensation that develops under the roof can run all the way out to the eaves in the space that is created between the vapour barrier and batten cap roofing.”

“Normally, the metal roof goes on top of the roof underlay, whereas this has a vapour barrier that is installed over the trusses then a 10mm timber packer is installed that runs vertically up the trusses and then the purlins run across that at 450mm centres. The roof sits on a 3D spacer on top of the purlins so the resulting gap lets any moisture that develops drop down onto the vapour barrier and then run freely out into the spouting.”

Ventilation is a crucial part of any roofing system, and something that has been developed within the QBT 450™ batten cap system also. “It’s a true ventilated roof system. The way it has been designed with the vapour barrier over the trusses means the roof space is properly ventilated,” Bruce says. “Any condensation that develops under the roof can run all the way out to the eaves in the space that is created between the vapour barrier and batten cap roofing.”

“Normally, the metal roof goes on top of the roof underlay, whereas this has a vapour barrier that is installed over the trusses then a 10mm timber packer is installed that runs vertically up the trusses and then the purlins run across that at 450mm centres. The roof sits on a 3D spacer on top of the purlins so the resulting gap lets any moisture that develops drop down onto the vapour barrier and then run freely out into the spouting.”

Batten cap roofing has been a sought after product for some time due to its distinctive and bold aesthetic. Standard batten cap roofs are generally steel, but for Bruce, that’s definitely not the preferred option, particularly when it comes to creating different aesthetics.

“Aluminium is a much better option (for roofing and cladding), because it represents a cost saving as well as design flexibility. The challenge with pre-painted steel is that the paint finishings are limited. With aluminium, there are infinitely more possibilities,” Bruce says. Added to this is the fact that up to 40 year warranties are available which means any long term cost benefit analysis will tend to indicate aluminium as the best solution.

Batten cap roofing has been a sought after product for some time due to its distinctive and bold aesthetic. Standard batten cap roofs are generally steel, but for Bruce, that’s definitely not the preferred option, particularly when it comes to creating different aesthetics.

“Aluminium is a much better option (for roofing and cladding), because it represents a cost saving as well as design flexibility. The challenge with pre-painted steel is that the paint finishings are limited. With aluminium, there are infinitely more possibilities,” Bruce says. Added to this is the fact that up to 40 year warranties are available which means any long term cost benefit analysis will tend to indicate aluminium as the best solution.

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The Architectural Roofing Company has relationships with various European manufacturers who utilise paint systems that are far more advanced than anything that is available in New Zealand currently, allowing designers another level of creative freedom.

“These relationships mean that we can provide aluminium roofing that is finished with a natural zinc look, for example. We’re finding that all sorts of finishes are being specified more in aluminium – everything from copper-look finishes to a woodgrain-look and concrete-look,” Bruce says.

“The beauty of QBT 450™ is that it brings more of these finishes and options to a much larger part of the market. It’s a system that is quick to install, is cost efficient, has a longer lifetime guarantee than other similar products, and allows for design freedom in the range of finishes that are available.”

If you’re considering batten cap roofing for your next product, get in touch with The Architectural Roofing Company on ArchiPro here to discuss the possibilities.

The Architectural Roofing Company has relationships with various European manufacturers who utilise paint systems that are far more advanced than anything that is available in New Zealand currently, allowing designers another level of creative freedom.

“These relationships mean that we can provide aluminium roofing that is finished with a natural zinc look, for example. We’re finding that all sorts of finishes are being specified more in aluminium – everything from copper-look finishes to a woodgrain-look and concrete-look,” Bruce says.

“The beauty of QBT 450™ is that it brings more of these finishes and options to a much larger part of the market. It’s a system that is quick to install, is cost efficient, has a longer lifetime guarantee than other similar products, and allows for design freedom in the range of finishes that are available.”

If you’re considering batten cap roofing for your next product, get in touch with The Architectural Roofing Company on ArchiPro here to discuss the possibilities.

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