Insulation for fabric storage buildings
MAX DrySpan
6R20
Six inches of insulation.
A package sized to your building.
R-20 fibreglass, fully enclosed in vinyl. Tell us what you own and what you want to insulate. We’ll quote the supply package for your MAX building or review your other-brand project.
Roof and sidewalls. Optional end walls. Supply only.

- R-20
- Insulation material rating
- 6-inch
- Specified insulation thickness
- Vinyl enclosed
- Fibreglass enclosed on all sides
- Supply only
- Your installer. Your project.
Put a thermal layer inside your building
Start with what you need to cover.
Whether you’re planning heated equipment storage, a farm shop or another working space, start with the building you have. Roof shape, length, end walls and openings determine the material quantity.
Tell us your building
Brand, width, length and height. If you have drawings or frame photos, we can request them after your enquiry.
Choose your coverage
Price the roof and sidewalls together. Keep the end walls on a separate line so you can see the difference.
Get the supply quote
Confirm quantities, tape and accessories, freight and availability before ordering. Arrange installation separately.
A clear scope before you order
The right quantity.
For the actual surfaces.
A 40′ × 80′ building has 3,200 sq ft of floor. That is not its insulation quantity: the material follows the roof and sidewalls, with end walls measured separately.
We use your dimensions and roof profile to prepare the supply quote. Send the best information you have; the final material quantity and fit need confirmation before ordering.
Ask for these lines in your quote
- DrySpan for the roof and both sidewalls
- Optional end walls, allowing for door openings
- Seam tape and any specified accessories
- Freight to your location and confirmed availability
Installation is not offered. Hanging, supports and site labour are arranged by you. The building kit is a separate purchase.
Already own a fabric building?
It doesn’t have to be a MAX.
Bought a building kit from another seller or picked one up at auction? Start with the brand or seller and the dimensions you know. We’ll review your building for an insulation-supply quote.
Building kits and package sellers
More kit brands and sellers
More building brands
Bought at auction or not sure of the brand? We can start with the information you have.
Brand and seller names identify the customer’s building. MAX is not affiliated with these businesses. Suitability and attachment requirements must be confirmed for each structure.
The material, plainly explained
Fibreglass inside.
Vinyl around it.
DrySpan 6R20 encloses the fibreglass in vinyl. Sections can be joined with suitable vinyl seam tape; cut edges also need resealing.
R-20 at 6 inches describes the insulation material. A finished building’s performance depends on its complete envelope, including seams, doors, framing and air leakage. Keep the insulation at its intended thickness rather than compressing it to fit.
Confirm the support arrangement and any fire, moisture and ventilation requirements for your use before ordering. An opaque insulated roof also changes the daylight inside; plan the lighting accordingly.
Two different jobs
Inner liner or R-20 insulation?
Tell us the problem you’re solving. A condensation liner and a thermal insulation package are separate products.
| Your priority | 400g inner liner | MAX DrySpan 6R20 |
|---|---|---|
| Main purpose | Manage condensation drip | Add thermal insulation |
| Construction | Inner fabric layer with an air gap | Fibreglass fully enclosed in vinyl |
| R-value | No R-value claim | R-20 material at 6-inch thickness |
| Next step | Read about the inner liner | Get an insulation supply quote |
MAX building. Other brand. Start here.
Quote my
insulation package.
Give us your building size and the areas you want covered. We’ll review the details with you and prepare a supply quote.
Roof + sidewalls
End walls priced separately on request.
Prefer to talk it through?
587-800-4629 · Text MAX
No payment is taken here. Installation is arranged by you.
Before you order
Straight answers about DrySpan.
What is MAX DrySpan 6R20?
MAX DrySpan 6R20 is 6-inch, R-20 fibreglass insulation fully enclosed in vinyl. MAX supplies insulation packages for fabric storage buildings, quoted to the surfaces you want to insulate. Installation is not provided.
Can I request insulation for a building from another brand?
Yes. MAX accepts insulation-supply enquiries for MAX buildings, kit brands and sellers such as TMG Industrial, Uncle Wiener’s, Suihe, Gold Mountain, Hills Industrial and Chery Industrial, as well as Cover-All, Norseman, Britespan, ClearSpan, Calhoun and Legacy. Auction purchases and unknown brands are welcome too. Send the make or seller, model, dimensions and, if available, drawings. The frame, support method, clearances and suitability must be checked for your actual building before ordering. This is not a universal-fit or manufacturer-approved retrofit claim.
Does R-20 mean the entire building becomes R-20?
No. R-20 is the insulation material rating at its specified 6-inch thickness. The finished building also has doors, joints, framing and other surfaces that affect heat loss. Compression, gaps and air leakage affect installed performance.
Is this the same as the 400g inner liner?
No. The 400g inner liner is a separate condensation-control product with no R-value claim. DrySpan 6R20 contains fibreglass insulation and is supplied as a separate thermal package. Tell MAX whether your main concern is heat loss, condensation or both.
How is my insulation package measured?
The quote is based on the surfaces being insulated, not simply the floor area. Roof and sidewall coverage follows the inside profile of the building along its length. End walls are measured separately, allowing for door openings. Ask for the roof/sidewall package and end walls as separate lines.
Does MAX install the insulation?
No. MAX supplies the insulation only. Arrange hanging, supports, seam sealing and any other installation work with your own installer. Confirm the support and attachment plan for your building before ordering.
How are cuts and joints closed?
Sections can be joined and cut edges resealed with suitable vinyl seam tape. Ask MAX to specify the required tape and accessories in the supply quote. The complete assembly must address joints, penetrations, ventilation and moisture control; an enclosed panel alone does not make a building moisture-proof.
Will an insulated roof still transmit daylight?
Plan for added lighting where an opaque insulation layer covers a light-transmitting roof. Do not assume the natural light level will remain the same as in an uninsulated white fabric building.
What does a complete insulation package cost?
Request a supply quote for your building size, roof profile and selected coverage. MAX will confirm material quantities, tape and accessory scope, freight and availability. Building-kit prices and installation labour are separate from the insulation supply quote.
