At a glance
- Thermal Layer Vinyl
- Must be used under a standard sauna cover
- Not weatherproof alone; no warranty
See your selected door option
The thermal door rolls up at the front.
This opening is your door width plus 2 inches on the left and right. The fixed thermal cover stays in place beside the opening.
This wider opening exposes the front glass and windows. It provides a more open view, but the larger roll can be harder for one person to open and close.
The removable thermal panel rolls to the side, with the top attachment strip and zipper tracks visible.
See your selected option
The silver thermal weather-slot construction is shown on the selected cover material.
See your selected option
The matte-black dust-cover weather-slot construction is shown on the selected cover material.
See your selected option
The actual dust cover is shown open at the front.
Your roof measurements
Choose the drawing that most closely matches your roof. Measure the widest points of the sauna in inches, following every red arrow. Use 0 only for a window or front section that is not present.
Enter inches, for example 24, 24.5 or 24 1/2.
G1
G2
G3
G4
G5
G6
G7
G8
G9
G10
G11
G12
G13
S1
S2
S3
S4
H1
H2
H3
H4
H5
H6
H7
H8
H9
H10
H11
H12
H13
H14
H15
H16
H17
H18
Complete the measurements, then attach your sheet.
Download completed sheetPlease also attach a front-facing photo of your sauna in the photo upload below.
View the original measurement sheetStandard front-door opening
Measure the actual front door width. We will add 2 inches on the left and 2 inches on the right ā 4 inches total.
AI visual example. Both options keep the standard door ties in natural ivory. Your cover follows your supplied measurements.
Thermal Cover (Cold Climates)
Your price
Size and selected options determine your final price.
Standard cover production: 14ā16 weeks before shipping.
Build your order
Select each applicable option below. Review your measurements and choices before adding to cart.
Full specifications & detailsView custom colorsMaterials, measurements, care & specifications
Back to your options āš§ BUILT FOR COLD WEATHER PERFORMANCE
Add insulation to your sauna for faster heat-up and better efficiency
If youāre using your sauna in cooler temperaturesā¦
Youāll notice:
- Longer heat-up times
- Heat loss during use
- Higher energy usage
This thermal cover is designed to fix that.
š Simple upgrade. Real performance gain.
š”ļø WHEN YOU SHOULD USE THIS
Recommended for:
- Cold climates
- Winter use above ~15Ā°F
š For extreme cold (below ~15Ā°F), consider the Insulated Thermal Cover
šŖ WHAT THIS COVER DOES
- Traps heat inside your sauna
- Reduces warm-up time
- Improves energy efficiency
- Helps maintain consistent internal temperature
ā ļø IMPORTANT LIMITATIONS
- NOT weatherproof on its own
- Must be used under a standard sauna cover
- 1-year craftsmanship warranty for manufacturing defects in construction only
- Comes in silver only (hidden under outer cover)
š§µ MATERIAL BUILD
- Thermal Layer Vinyl
- Reflective interior for heat retention
- Lightweight, flexible design
Built for insulation ā not outdoor exposure.
šŖ DOOR OPTIONS
Standard Door (Included):
- Vertical roll-up
- Secured with 3 ties
Upgraded Door (Recommended):
- Rolls to the side (horizontal)
- Velcro-secured along the top
- Dual zipper system (detaches like a jacket)
- Can open from either side
- Can be fully removed for full front access
š Easier access. More flexibility.
āļø FUNCTIONAL DESIGN
- Install once
- Leave in place
- Use your sauna normally
Designed to work seamlessly with your outer sauna cover.
š¦ WHATāS INCLUDED
ā Full thermal cover
ā Door system
ā Tie-down system
ā Installation instructions
ā Care instructions
š MEASUREMENT DISCLAIMER
Measure carefully before ordering.
Each cover is made within a Ā± 1/4ā tolerance.
š Measure twice. Order once.
š PRODUCTION & SHIPPING
- Made to order
- Production time varies based on demand
- Delivery time depends on location
š§¼ CARE INSTRUCTIONS
- Do NOT machine wash
- Clean with mild soap only
- Hang dry
š„ FINAL TAKE
If you want:
ā Faster heat-up
ā Better heat retention
ā More efficient sauna use in colder weather
š This is the upgrade that makes it happen
š© QUESTIONS?
Not sure if this or the insulated version is right for your climate?
Reach out ā we typically respond within 24 hours.
Ā
Ā ROOF PEAK DIMENSIONS SHEET
Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā 
Ā
Ask for care instructions for your cover material
Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā
The thermal material itself is not covered by a warranty.
Once fitted, the cover stays in placeāopen and close its thermal front door to access your sauna without removing the whole cover.
Product videos
Thermal Cover Ā· Standard front door
Read video instructions
Roll the front upward, then secure three matching silver thermal ties. Now lower the whole cover over the roof. Ease it down evenly, keeping the rolled front clear. Smooth the sides and check the corners. Keep the glass sauna door closed. Your thermal layer is fitted. Use a separate weather cover outdoors. Release all three silver ties. Roll the panel down, then zip both sides beneath the flaps. Unzip both sides. Roll the panel up and secure all three silver ties.
Thermal Cover Ā· Upgraded front door
Read video instructions
Release the top. Roll left, then secure three silver thermal straps. Now lower the whole cover over the roof. Ease it down evenly, keeping the rolled front clear. Smooth the sides and check the corners. Keep the glass sauna door closed. Your thermal layer is fitted. Use a separate weather cover outdoors. Release all three silver straps. Unroll the panel to the right, then zip beneath the flap. Unzip at the right handle. Roll the panel left and secure all three silver straps.
Which cover is right for you?
Read video instructions
Start with a canvas cover for outdoor weather protection. Thermal covers go underneath. Choose insulated thermal for extra insulation. The bundle has two separate covers, with separate front doors. All-in-One combines three layers in one cover. Choose a dust cover for indoor use only. Roof-only covers the top. The sides stay uncovered.
Choose your front opening width
Read video instructions
Some products offer a choice of front opening width. Choose the wide front opening for the broadest access across the sauna front. Or enter the actual glass door width. The opening adds two inches on each side. Use this choice only when the product page offers the opening width option.
Need help choosing?
Contact us before ordering if you have questions about fit or options.
