Sauna Insulation, Radiant Barriers, and Air Gaps. ARE THEY EVEN NEEDED!?

Sauna insulation can actually do more harm than good, and a lot of builders really mess this up. Let's explore the best materials and sequence for insulating a sauna and figure out if it's even necessary. 00:00 - Introduction 00:37 - Traditional Log Saunas 00:59 - Sauna Kits 01:45 - Do saunas need insulation? 02:09 - Heater Sizing and Selection for Uninsulated Saunas 02:45 - Thermal Mass and Rocks 03:14 - Thermally Modified Wood 04:14 - Insulated saunas - Materials and Wall Assembly 04:33 - Why we don't like spray foam, EPS, or PIR Rigid Foam 05:38 - What Insulation Materials To Use 05:46 - Benefits of Mineral Wool (Rockwool) Insulation 06:27 - Aluminum Foil Radiant Barriers 06:39 - How to install a radiant barrier with an air gap 07:03 - Avoid Trapping Moisture! 07:24 - The Perfect Sauna Wall 08:19 - Buy Saunas and Materials on Sauna Marketplace :)