LESNRG The Game.

Seal the leaks. Post the lowest score.

Survive 60 seconds. Move with ◀ ▶, jump with SPACE, and shoot the air leaks with F to seal them up and lower your CFM@50pa score. Lowest score wins.

Click the game, then press ENTER to start.

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In the real world, we find the leaks for you.

Every leak in the game is one we find in real buildings — rim joists, duct trunks, can lights, window edges. We come out, pressurize the envelope, and show you exactly where the building is losing energy.

Questions? Get in touch