Our Roof System App has multiple applications, including thermal bridging, r-value calculations, lifecycle assessments and more.

With no need for any prior knowledge, the Roof Systems App allows anyone to build and specify a roof system in seconds and verify the design with your team via or with our detailed yet customisable reporting.  

We use the term roof system to define all materials and control layers from the exterior to the interior of a wall. By defining the properties of these elements, we can automatically run performance calculations so all you need to do is specify.

A Total R-value calculation for roof systems involves both the thermal performance of roof material and thermal bridges such as timber or steel framing. For more information, click here.

Our Roof System App takes the complexity out of this calculation to provide you with a simple and flexible R-value app that generates results in a matter of seconds.

Our Roof Systems app undertakes thermal resistance calculations inline with J 1.5 - Total System R-value for walls, roofs and floors based on AS/NZ 4859.2and NZS 4214:2006: 2006.

As there are two references within NCC 2019, a primary (AS/NZS 4859.2:2018) and a secondary (NZS 4214:2006: 2006:2006) reference, Speckel must undertake both as appropriate.

For more information, click here.

External walls are often structurally supported by timber or steel partitions. Such partitions typically run through the thermal control layer and represent (the combination of frame plates and noggins) between 10 – 15% of the overall area of a standard full-height wall. These are known as construction thermal bridges.

As a result of this thermal bridging effect, they increase the overall thermal transmittance of the wall and need to be considered. Steel wall frames, with high thermal conductivity, are particularly poor performing and may need to consider non-combustible thermal breaks to ensure a continuity of the thermal control layer.

Thermal bridging describes a design or construction detail where there is a direct connection between the inside and outside through one or more elements that are more thermally conductive than the rest of the building envelope.

The rate of heat transfer depends on the thermal conductivity of the material and the temperature difference on either side of the thermal bridge. When a temperature difference is present, heat flow will follow the path of least resistance through the material with the highest thermal conductivity and lowest thermal resistance, creating the thermal bridge.

For more information, click here.

As steel frames are made of a highly conductive material that allow for significant heat loss when compared to timber frames, additional strategies are required to ensure that the steel frame remains warm and as unexposed to the exterior as possible.

For more information, click here.

We have you covered. Simply jump onto The Guide and you can search for Roof System app tutorials and other related subjects.

For those that need no nonsense reporting, all Practice level users (and above) can get access to 1-click, customisable reporting to send off to the wider design team or building surveyor.

When using our apps, we allow Themes to be applied to reports so you can align your company branding with an output from Speckel. Reports are available in Practice and Enterprise Levels only.

Creating Themes and applying them is a premium feature for Practise and Enterprise Level users only. If a Community Level user, you can still have a play but you will not be able to apply the Theme. Simply navigate to the Teams admin area to begin creating your Theme.

For more information, click here.