Tilt-up: The energy efficient construction method

Apr 11, 2013

Each year, Ontario’s Schools spend nearly half a billion dollars each year on energy costs. []

Given this fact, it’s little wonder that energy efficiency and savings is top of mind for so many in our school boards today.

It’s a simple equation …….
reducing energy consumption = saves money

As part of its energy saving program, the Government of Ontario has been allocating funds to help school boards implement energy saving programs for new and existing facilities. Many of the progressive thinking school boards are turning to insulated tilt-up concrete panel construction to achieve these energy savings dollars.

Tilt-up construction is rapidly expanding here in Ontario. A growing number of school boards are using tilt-up panels to create ultra energy efficient structures and subsequently reduce costs. (Incidentally, tilt-up is a sustainable and LEED friendly choice.)

Why is tilt-up so energy efficient? For starters, SiteCast tilt-up panels are constructed with two layers of concrete, and a 3”rigid insulation core, providing an assembly which has all the properties of a high performance wall assembly. SiteCast tilt-up structures feature an edge-to-edge, foundation to roof, uninterrupted rigid insulation layer that has no thermal penetrations through this valuable layer. The interior layer of concrete (load bearing) provides a quantity of thermal massing properties, as well as sound-deadening and abusive resistant properties.  The exterior layer of concrete protects the rigid insulation, and is the decorative layer that is architectural and provides a thermal and abusive resistant layer.

These attributes save energy and provides a buffer against random heat gains / losses, controlling and improving the functional environment for the building occupants. SiteCast tilt-up buildings offer an overall energy and life cycle performance that is typically 20% to 35% more energy efficient than traditional construction assemblies.

The thermal images below validate our claims. This illustration shows a winter heat loss comparison between the existing Louis-Riel school building and Sitecast's tilt-up addition. Blue areas show low heat loss and red areas show high heat loss.


Traditional steel ties allow heat to be transmitted through the wall, and result in elevated energy costs. SiteCast's non-conductive thermal ties do not transmit this energy through the wall.

SiteCast tilt-up wall assemblies provides a healthier learning environment for our students and educators.

Data on energy usage of Ontario schools will be released this July. Will your school meet the energy grade?



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