The importance of humidity can not be overlooked in your wine cellar.
Passive wine cellar vapor barrier.
There are two steps in the vapor barring method commonly used for a wine cellar construction vapor barrier with spray foam and insulation with fiberglass batts.
If you decide to go active you should strongly consider adding a vapor barrier should be behind the insulation if you put up a vapor barrier would definitely include the lower part as.
Wine cellar construction reference chart.
Passive wine cellars or an underground wine cellar.
In any wine cellar it is imperative that the proper wine cellar temperature and humidity levels should be established and maintained.
Humidity in a wine cellar also keeps wine bottle corks from drying out preventing them from losing their sealing capacity.
A wine cellar humidity should generally be between 55 75.
This chart helps you to determine the best construction guidelines for building your wine cellar.
Humidity refers to the concentration of water vapor in the air.
Insulating a wine cellar provides a heat cold break between the inside of the cellar and the adjacent spaces around the cellar.
If you are using spray in closed cell foam insulation this acts as a vapor barrier as well as an insulator so the 6 mil poly step in the vapor barrier process is not necessary.
It sounds like you are in the expected range.
With a passive cellar you may not have a problem.
Hence what i think i have is basically the foundation for a passive wine cellar.
The door into the wine cellar from the rest of the basement is an outside metal door with a seal.
In understanding the role of a vapor barrier in your wine cellars the first thing you need to take into consideration is the significance of maintaining the ideal storage conditions.
I read richard gold s book on how to build a passive cellar and decided that i really needed to insulate and vapor barrier the outer walls.
In this case the exterior concrete basement wall was insulated on the outside but it can also be insulated from the inside.
The proper humidity level for a wine cellar is 55 75.
This would mean a.
Basically a vapor barrier creates a separation between the environment outside your wine cellar and the environment inside your wine cellar.
The placement of insulation and a vapor barrier in a wine cellar.
Usually spray foam is very expensive.
Steps of vapor barrier.
I wound up putting in a 6 mil vapor barrier on the two outer walls and the shorter inner wall framing them out with 2 x 4 and filling the space with rigid polyisocyanurate.
By using a vapor barrier and high r value insulation you block temperature exterior to the wine cellar and allow the ground temperature from the floor to enter.
The wine room is 10 x 20 with 9 1 2 ft ceilings.
Walls are all cement and 9 1 2 inches wide.
