Tent insulation

We are prototyping the insulation kit in my v2 XL. The goal is to eventually pattern the kit for other tents as well.


Our insulation kit, when fully developed, will commercially available.


This Mainer is eager to try it out! Thanks again for your hard work on this.

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I am very interested in this. Excited to see the final product!

+1 with the_philxx.

Would be great if this were available by mid February when I pick up my v2

As a contingency, I have been talking to some local commercial sewing companies as well as a couple of companies that already make tent insulation solutions around cost and materials once I have my V2. If I end up going this route, I would prefer open source the patterns including information on various materials for best insulation and minimization of condensation, but it will depend on the agreement with the company I go with to do a custom build.


Started buying materials to make my own insulation pack. The wait for a commercially available unit is taking too long. Was gonna go super basic with an XL harbor freight moving blanket and mylar as a POC, but decided to go a little more refined on materials and go the “Buy once, cry once” route. It’s still gonna be a basic solid liner for the tent fabric, but should provide much better performance and ambiance vs the budget option. I’ll add some features later, if I feel I need to.

I’m using Warm Window insulated fabric, a sweet patterned cotton fabric for show, and some 2" bias tape for the edges. Gonna attach the top and bottom with T-nuts and a combination of thread-on and stick-on snaps from Sailrite. Finally, I’ll Scotchgard the patterned fabric for some water resistance. Should be a fun project. I’ll post some progress pics once I receive the materials and start planning.

If you wanna know, this route is already well over $300, but it’ll be exactly what I want. Hopefully. :joy: And I don’t have a sewing machine yet (might have a couple friends with one). Over 1/3 of my cost was just the snaps, toolset and Tnuts. Also worth noting, I use a Propex heater. Hoping this will dramatically reduce the amount of run time when it goes subfreezing.


I was thinking velcro that to the roof just to keep it from raining on my head. no cutting, just hand sewing velcro patches to the blanket and glue the other side to the roof. $30 in junk and stuff maybe hour of work…BOOM what I need. I know red neck style but how many times a year would I use it?

I still would jump on a commercially available liner at affordable price

got a link to fabrics you ordered?

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Joann’s has a couple sales stacked on this right now. 30% plus 20%.
Warm Window

Got my other fabric from this vendor. I found one that I liked that was 60" wide.
ETSY Vendor

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thanks! that window stuff might be the ticket

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No prob! I was almost gonna do my own quilting with multiple different fabrics and stumbled upon a few YT videos about making insulated window curtains. Most of them used the Warm Window stuff, and the “brochure” for it looks promising.

that would be freakin EPIC

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In theory, yes. But practicality, no. This is my first major sewing project as well, so I knew I was overcomplicating it. Now I’m down to two separate materials and a border tape. I would imagine I could knock it out in a day. :man_shrugging:t2:

This is the first material I landed on although I’m trying to source a 3M product…


that stuff seams like it might be too thin but it’s the right width. see what I did there?

really at this point , if wrinklypants can make a reasonably priced product and comparable to the tepui liner, I’m in

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I’ve been looking at materials for the last two weeks. Was gonna do that same quilted material until I figured out it was single sided. So you’d need to add at least a second layer of it to reach a decent R-Value. The Warm Window is essentially that fabric, plus mylar AND another layer of fleece. After discounts and a Honey gift card discount, it was under $20/yard with tax and free shipping.


I want the 3m thinsulate in the heavy weight but it’s sold out. That’s not backed at all, so I would be quilting both sides. Thin poly or nylon ripstop would look sweet… but I don’t know the first thing about sewing.

Seams (I did it too) like this wouldn’t be the hardest project to learn on as it’s all straight lines and one dimensional.


personally it would be a poly on the outside and patch work quilt on the inside. now the wheels are turning… MOM! I need your sewing machine… and cloth scraps… and show me how to use this thing… please just do it for me


We are basically in the same boat. The actual sewing part doesn’t seem terrible…but the sewing machine setup does. :grinning_face_with_smiling_eyes:

Check out this place if you wanna see some cool and expensive fabrics: Discovery Fabrics

Seattle Fabrics is our local version of that place!

The warm window stuff has 10% cotton - I am going to steer clear of cotton for this application which stinks because that looks like a great option otherwise!

Also - went out for measurements today and going to place the insulation order today as well. I believe I can do it with 7 yards of 60" material but ordered 8 yards to be safe. Material is the Primaloft Gold 200 - thanks @Hoooogan for the Canadian hook up - Seattle Fabrics was out of this but it was what I was after.

As for the other fabrics needed - I will need to make some templates and try some stuff out - the ripstop nylon I want to use is available locally.

Lastly - I am going to support a local business and take a sewing class. I should be able to do everything I need to do with a non-industrial sewing machine - exciting!

This will be one of those make it up as I go along projects, but should be a cool end product and anything will help!

Exploded view:

Sides: 60" tall, 96" long (note this is not a right triangle - so 96" length needs to be longer to split a rectangle into the two triangle wedge shapes)

Roof: 60" x 96"

Main Door: 60" x 60"

These measurements are oversized and for the purposes of ordering 60" wide materials only - everything will be trimmed down and if anything needs to be made larger will be sewn together using scraps.