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Inside a Tractile Roof


The Tractile Interlocking Building System makes it quick and easy for experienced tradespersons to install your Tractile roof and provides significant savings in labour and transport. If you have the correct tools and knowledge, you can install the roof yourself, but we recommend that you do not.

The extra insurance and piece of mind that you will get by having a professional or team of professionals doing the work, makes the small saving you might make in installation fairly negligible. If a professional does make a mistake, they will pay to fix it. If you make a mistake, it can be hazardous to your health and your wealth.

We thought you might be interested in how they’ll do it though.

The Frame

The roof frame is the foundation of the roof. Whether you get a pre-fabricated frame, or one made individually on site, it must be square, straight and strong.


We mentioned before that it’s a good idea to get a professional to put your roof together. On of the main reasons is safety. Roofing is a dangerous activity for those involved and those below. A professional will make sure all those around are safe.

Even if you have the tools to put the roof together, do you also have the side rails, mesh barriers and scaffolding that is necessary to protect both roofers and those walking past?

If you absolutely must install your own roof, please wear sturdy, flat shoes with excellent grip, make sure you have your weight supported at as many points as possible, watch out especially for ridges and edges and take care at all times.

Fascia Boards

Fascia boards are the boards, behind the gutter and under the edge of the roof that provide both ventilation and put the finishing touches to the security of your roof.

A good fascia system keeps pests out, but allows air in.

In traditional roofs, fascia boards also provide a place from which to hang gutters. As gutters form part of a Tractile roof, you have more leeway in what material you can use for fascia boards and how they will look if you utilize the Tractile Interlocking Building System.


Sarking is an important, though not required, addition to a traditional roof. Although this reflective, protective layer also increases the thermal and weather resistant properties of a traditional roof, the extra cost means that many do not take advantage.

Tractile roofs do not require sarking. Indeed, all of the weather resistant, reflective and thermal properties of sarking can be replicated and increased many-fold by the addition of certain materials within the Tractile tiles themselves.

This saves time and money and, with the integration of multiple beneficial properties in one system, reduces the changes for damage or failure significantly.

Loading the tiles

A vital undertaking with traditional roofing tiles because they are so heavy, the process of packing tiles evenly on the roof in preparation of installation is no where near as important with a Tractile roof. However, it is still important to save time in installation, so you will see professionals space out the tiles on the roof before they start installation.

Installing the tiles

The Tractile ‘slide-and-lock’ design makes installing a roof quick and easy:

To create the complete slide-and-lock roof:

  1. Using a spacing tool, fix the roof batons to the roof trusses
  2. Insert the lightweight tiles into the batons from the side of the roof and slide into position, locking to the tile or tiles already in place.
  3. Slide the ridge cap tiles into position along the top each of the roof, locking to the top row of tiles on each side of the roof and to any ridge cap tiles already in place.
  4. Slide the barge tiles into position up to the ridge, locking to the main and ridge cap tiles along the edge of the roof.


Traditional roofs require flashing (made of sheets of aluminium or lead) between roofing tiles and other roof features like skylights, chimneys and vents. It provides a weather proof link between the roof and the feature.

In most cases, features on Tractile roofs will be part of the roof itself and you will only need flashing in a small number of circumstances.

Flashing is time consuming to install and requires a different process to adding tiles, again adding to the labour costs. Because it is a separate system -an addition- to the roof itself, it is generally a point of weakness. By reducing the need for flashing, Tractile saves you money and improves the weather-protecting integrity of your roof.

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