Don’t Build Your Sauna Before Reading This

While many people fear the idea of building their own sauna room in their homes, it is among the best ideas you can have for your home. The best news is that you can even convert an existing room into a sauna room within a short period. If you happen to have some questions, on how to build a sauna, this article will guide you through the important steps. However, you first have to remove the drywall. Be careful. Don’t make the same mistakes as these guys.

Before Your Start

Prior to installing a sauna room in an existing room, you have o ensure that the room has a non-permeable floor, bare joists on its ceiling and bare studs. If you choose to use plywood for your sauna room, you should remember to have a tile under the heater and include an overlay with the sauna duckboard flooring. Mentioned in this article is the procedure you should follow to convert an existing room into a sauna.

You will also need quality tools. Don’t skimp here. Having the right tool for the job is imperative. You will definitely need a good quality chopsaw or table saw with sharp blades to get those cuts clean.

Wiring Work for the Lights

Your sauna room will definitely require wiring for the light switch, the bulbs, the heater wire conduit as well as controls outside the room. If you are considering using a gas heater in the sauna rooms, then you will need a gas pipe. Additionally, the thickness of this pipe has to be carefully determined, based on the number of appliance that will be using the gas supply. In this regard, you will need to consult a gas professional.


This is another important task that has to be carried out on the sauna room. Insulating the room is important because it will lower the overall operational costs. The recommended sauna insulation is R-11 insulation for the inner walls and R-19 for the outer walls. If you are using fibreglass to insulate the room, you have the 16 inch and the 24 inch wide roll insulation options.

Installing a Foil Reflector

Adding a foil vapour barrier to our sauna room adds an insulation factor of R-1 to the room. Additionally, it acts as a vapour barrier in the sauna room. This foil should be staples to the interior surfaces of the room, including the walls and the ceiling. While installing the foil, you should have it overlapping by about three inches in order to eliminate the need for using a foil tape. This barrier will prevent the walls from absorbing any vapour, but allows the vapour to accumulate in the room instead.

Cedar Paneling

This is another important procedure while converting an existing room into a sauna. In this regard, you should start by nailing the cedar panel boards in such a way that they are perpendicular to the joists. Proceed this way across the ceiling until the work is complete. After this, you should cut a hole for the light box. This is where your tools, mentioned above will come into their own. Getting a great finish makes all the difference.

Again, you will also need to nail the clear panelling boards over the foil barrier as well as the insulation. Starting from the bottom, all the way to the top, you should now nail the groove and the tongue into place, such that they are horizontal to the studs. You should then add the cedar boards in rows and check whether they are in position after every fourth row.

Additionally, you may also have to cut to pave way for the electrical junction boxes. After you are through, you should use the trim peaces to cover any gaps.

Centre the Heater

Most sauna heaters come with the appropriate number of screws to secure it to the wall. In this regard, you should always use the longer screws on the top and tighten them well. After you have secured the heater in place, you should then wire it to the power source.

With such a guide, how to build a sauna should no longer be a problem. However, it always leaves this work to the professional sauna builders.

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