“Quality is never an accident...

it is always the result of intelligent effort.”

- John Ruskin

Call us! 403.289.8852 | info@tlj-eng.com

Calgary and Kelowna


Above Sheathing Ventilation (ASV)

Solar Heating & Cooling
An Above Sheathing Ventilation (ASV) System provides year round usage with winter heating and summer cooling.

nightsolar diagram

AVS utilizes the most efficient and proven solar technology, the SolarWall® collector, in an unique configuration to also take advantage of nocturnal radiation cooling, a previously ignored cooling phenomena. This unique design has additional benefits as it ventilates and shades the roof covering the main roof in darkness all day long and preventing unwanted summer heat from reaching and conducting through the roof. With most roofs responsible for half of the cooling load, an AVS system in many cases can reduce the cooling equipment size in half and the associated energy costs.

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TLJ Engineering Turns 30

So….December 1987 a 25 year old kid incorporates an engineering company.  Thirty years later, it is still going stronger than ever. 


tlj lgo

TLJ Engineering Consultants Ltd is turning 30 this month.

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How Does Santa Get to Every House in One Night?

The image of an obese guy being dragged around the world by flying ungulates is a pretty tough pill to swallow, believability-wise. Even having solved the cargo problems, you have the fact that the only flying mammals are bats and the fact that Santa has a shitload of houses to visit.

In fact, even if Santa only visits Christian homes; that is still over 3.3 billion people worldwide. That means Santa has a single night to visit over 150 million houses, according to math.

So How Does Santa do it?

For starters, experts point out that Santa could use an antimatter engine to power his sleigh.

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