Draperies and Top Treatments - Large curtain wall

I've got a dream of having a large curtain wall custom made in my warehouse. The curtain would be approximately 16' wide, 13' tall, and would have double door flaps in the center that could be tied open or snapped shut as the need may be. It will close off one end of a room that is approximately 30' x 16'.

This curtain would mainly be used in the winter months when I'd like to close off a small heated area of the warehouse. So my question would be: What type of material would be best for this curtain, since it will be exposed to "outdoor" winter temperatures, but will also need to kind of keep in the heat when I crank the heat up inside the room.

Would heavy canvas work ok? Or should it be heavy-duty vinyl? Or perhaps something that's quilted with a foil coating? I have no clue about this.

you just need a large (custom) version of thermal draperies. they can be any heavy weight fabric and they're lined with a thermal lining. search for "thermal draperies".

Thanks. I would imagine that an upholsterer or a tent and awning store would know the correct fabric to use. I'll have to contact one of them I guess. Since these aren't curtains meant for a home, I imagine this thing being more like a heavy tarp than a curtain or "drapery". I'll do some googling for "thermal draperies" though.

Annette is right. It's in the lining. It's called thermalsuede or you could use blackout lining. Both are insulating. To take it a step further, put a layer of heavy flannel interlining or there's an interlining called Warm and Natural, which is specifically made to keep out the cold. Then you could use any heavy drapery fabric (cotton) or upholstery fabric (thicker but somewhat stiff) or a heavyweight canvas or even fleece. Vinyl and tarp won't do anything for you. There is no fabric alone that will do what you're looking for.