The importance of site specific engineering

Every shed and its location are unique and must therefore be designed to meet the appropriate wind region, site conditions and topography. The building importance level must also be correct.

Site specific engineering documents show that the sheds engineering calculations have been done exclusively for your site. They are your assurance and peace of mind that the engineer has certified your project.

Every Waikato Shed Company shed is specifically designed and engineered for the site at which the shed will be constructed. During the design process an assessment of your site's wind region, topography, terrain, shielding and the building importance level will take place. Waikato Shed Company will use this information to determine the correct wind speed of your site to ensure the building is correctly designed.

Our independent engineer then reviews the information provided. Once checked and approved, the engineering PS1 and site specific engineering documents are available. This then proves that your new shed has been engineered correctly.


How long does site specific engineering take?

In the majority of cases engineering for your new shed can be completed within 48 hours due to Waikato Shed Company's advanced design & engineering software.


Site wind speed & zoning

Even though the majority of New Zealand falls into wind region A (also known as R1), local conditions must still be taken into account when designing your new shed. For instance some areas around Te Aroha can experience very high winds, while neighbouring sites may experience much lower wind speeds. It is crucial that the shed is engineered accordingly.


Topography

This reflects your sheds position in a geographic sense - for example at the top or bottom of a hill. Even if your property is located in a medium wind zone, if the shed is placed at the top of a hill this may increase the actual site wind speed significantly.


Terrain Category

Terrain category relates to the sheds surroundings. The common terrain categories are as follows.


Shielding

Shielding is a local development effect. It reduces the design wind speed by taking into account the protection afforded by upwind local buildings. Only permanent buildings provide shielding. Trees and other vegetation cannot be considered. Only buildings greater than or equal in height to the building being designed can provide shielding.


Building Importance Level

Importance level 1 buildings have limited human activity and are isolated from other buildings. Farm buildings are an example of a level 1 building. Buildings classified as importance level 2 are buildings which have regular human activity such as commercial buildings, workshops etc.


New Zealand wind regions diagram

rob waddell shed

"Our multi-purpose shed was a challenging build and Waikato Sheds did a first class job of it.
Their attention to detail and quality of workmanship was really good. Nothing was too much trouble." Read more...

Rob Waddell
Olympic Gold Medalist
Americas Cup Sailor

 

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