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Superior Saunas

Aluminum Foil Vapor Barrier

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    Pure aluminum foil, 48" wide roll, tape optional.  A vapor barrier is a crucial component for traditional sauna room construction. Foil vapor barrier will protect the building structure by blocking moisture from getting inside walls and is used by most sauna manufacturers. Optional high temperature foil tape is recommended for best results. Staple foil vapor barrier behind tongue & groove sauna wood paneling on walls and ceiling. It also adds 1R insulation efficiency by reflecting radiant heat back into the sauna room. Foil Vapor Barrier is also commonly used in walls near tub/shower for bathroom remodeling.

    This is the proper sauna foil vapor barrier made for new construction or remodeled saunas. Foil vapor barrier outlasts plastic vapor barriers which will deteriorate from heat and release gases (and no longer protect walls from moisture). Gain 1R of insulation and the reflective heat efficiency of alum foil radiating behind the paneling. The best heat reflective vapor barrier made for any heated structure.

    Contact us for a free sample, mailed to you. Plastic vapor barriers should not be used for sauna construction, as they will deteriorate from 200F + degrees and no longer protect walls from moisture vapor.

    INSTALLATION: Aluminum foil vapor barrier is clean, light and easy to install by tacking or stapling. Installs behind sauna wood paneling with reflective side facing in towards you (sauna interior). Overlap seams approx 2-3" inches for effective seal. The best results are achieved by sealing joints with the high-temperature Aluminum Foil Tape (other types of tape will deteriorate from heat).

    Return, Exchange FAQs

    Read below for more information or please visit our FAQs page for anything about Saunas or returns, shipping and delivery here.

    Product Guarantees

    At Superior Saunas we hand pick the best products, we hold pride for our amazing customer service, one of the largest distributers in the USA for all things Sauna and include education materials in our site along with additional information for every product we sell. Please read below for more information on our guarantees and FAQs.

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    Aluminum Foil Vapor Barrier - Superior Saunas


    • Quality Assurance

      We use high-quality materials and construction methods in all of our hand-made sauna kits, and offer warranties across our carefully selected brands.

    • Amazing Customer Service

      Our knowledgeable Design Consultants are headquartered along the shores of Lake Superior, ready to help you with your sauna build project pre & post-purchase.

    • Wide Range of Products

      From DIY sauna kits to steam rooms and accessories, we provide a comprehensive range of products to make your sauna dreams a reality.

    • Educational Resources

      We provide extensive information and resources about sauna installation & maintenance. Our team is very helpful and resourceful for both new & experienced sauna-goers.


    What is the timeline for shipping?

    Depending on the product orders will ship from the warehouse within 1 to 5 business days with typically 3 to 5 days in transit. Only occasionally orders may take up to 3 weeks depending on very heavy sales volumes and product availability. Superior Sauna currently ships by U.S. Postal Service Priority Mail and FedEx Ground, daily Mon-Fri. We do not ship on weekends or holidays.

    Otherwise for FedEx Express: Orders placed before 1pm Central Standard Time should allow for us to schedule an Express pickup before the daily cutoff, otherwise next scheduled Express pickup day.

    What is the return window?

    Returns must be made within 30 days of receiving your goods.

    What should I expect with freight orders?

    For pallet shipping of orders: sauna kits, large Do-It-Yourself parts, commercial sauna heaters, sauna or steam room doors, etc., the U.S. Special freight company will pick up the order from our factory and transfer the order to beyond carrier if outside the Midwest. Sauna kit and custom DIY parts order delivery lead time is usually 2-4 weeks, depending on how many custom sauna orders are currently in production. Freight orders ship weekdays typically 3 to 7 days in transit in the US. Your order is delivered to your driveway, which can be unloaded by hand in bundles with 2 people or with fork lift at delivery site. Most bundles are between 10 and 40 lbs, sauna doors approx. 80 lbs., and wood sauna stoves are approx. 130 lbs.

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    Check out our FAQ's page or contact our customer service team via email or phone.

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