Insulation for your home sauna.
Sauna insulation foam.
Ceiling insulation should be r26 or greater.
Touch n foam 2 component spray foam expands and touch n foam 2 component spray foam expands and cures quickly to fill cavities gaps cracks expansion joints and other sources of air leakage in a building envelope.
It s an outdoor sauna and so should be able to retain heat year round.
Insulation the wooden walls insulate quite well.
Also very important and a step never to be skipped is covering your studs with the sauna foil vapor barrior.
Additionally we build our saunas with western canadian red cedar the choicest of sauna wood due to the texture color and aroma the lumber provides.
They keep your home at a comfortable temperature without the need to crank your heat.
That said my plan is to build the hot room within a larger sauna structure a room within a room.
Outdoor saunas while there are many ways to construct a sauna our saunas are manufactured exclusively from solid lumber without the use of laminates or non wood materials.
The thermal mass of the log wall radiates heat back into the sauna.
It has a temperature limit of 165 f which is lower than you want your sauna to operate.
You can even place it under the foundation slab.
Is there a reason to not use rigid foam insulation instead of.
Any exterior walls with 2 x6 studs should still have r19 insulation.
It reflects heat back.
Install it anywhere from the roof to the foundation.
Polystyrene insulation is not a good choice.
Resists moisture that can lead to mold or mildew and provides increased sound and thermal insulation.
Rigid foam insulation also known as insulating boards provide high r values.
If you really want rigid foam insulation polyisocyanurate board like thermax brand might be worth looking at.
As with typical home construction your sauna walls and ceiling must be insulated and protected with a vapor barrier.
2 6 hot room walls filled with packed coarse sawdust from a local sawmill.
The hole in the sauna ceiling is not particularly tidy but in the finished sauna it is not visible.
To keep energy consumption down and to protect the wall structure from extreme temperature variations i covered them with 2cm of soft wood fibre insulation the same as was used on the outside of.
Insulation can not do that.
Are there any special considerations to be taken given that 1 it will be used outside and 2 it will be a near infrared sauna heated by red heat lamps so much less moisture than a traditional steam sauna dry rather than wet heat.
Foam board insulation is easy to use and is a great diy way to add some insulation.
Indoor saunas with 2 x4 studs do just fine with r13 insulation.
Here the insulation batts sneak behind the rear bench support beams.
Later the craft paper will be removed because it is an unnecessary layer that could potentially trap moisture.
