Wall construction and insulation

42 mm timber walls with triple-layer insulation — why thicker walls and more insulation lead to better heat retention and lower energy use.

Every Ritual model uses the same wall construction regardless of size or wood choice.

Wall thickness: 42 mm of timber slats.
Insulation system: Triple-layer insulation between the inner and outer wall surfaces. The 42 mm thick walls and triple insulation lead to superior heat retention and energy savings compared to single-layer or uninsulated construction.
Heat retention: The combination of wall thickness and insulation maintains cabin temperature with reduced heater run time once at target. Less energy is needed to hold temperature than to reach it, and well-insulated cabins hold temperature longer between heater cycles.
Energy implications: A well-insulated sauna uses less electricity per session than an uninsulated equivalent. The 42 mm walls and triple insulation deliver this efficiency.
Vapor management: The wall construction allows the wood to breathe through normal heat cycles. This is a feature of traditional sauna construction. Plastic or film vapor barriers inside the cabin would trap moisture and damage the wood.

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