To insulate or not to insulate is the ?

[GroErr]

Could you insulate the inside of a shipping container like that?

Sure, that DuroFoam stuff is produced to insulate concrete floors and walls, thereby the one side with the reflective vapour barrier. In theory that's all you'd need. In my new room though, I put the reflective side against the wall for the outside walls, then vapour barrier, then the 3/4" with the reflective side facing the plants. It brought the native temps in the room while it was -0F outside from 54-56F to 63-65F. Expecting the same result in reverse for summer, cooler temps in the room.

 

[Commander Strax]

It is much easier now....just saying

 

[superstoner1]

The white side reflects better than the foil side.

 

[GroErr]

The white side reflects better than the foil side.

There is no white side on this specific brand, it has a foil side and green/white writing and logos on the other. So far I've used it in my veg cabinet and now flower room, reflection is good about a foot away, almost mirror-like. There's probably better but it does the job and easy to work with...

 

[greenlikemoney]

I'd also caulk/spray foam insulate any area where 2 pieces of lumber meet ( ie corners )....you can't insulate soundproof enough in my opinion.

 

[GroErr]

Good point, I used both the spray insulation where the studs meet the wall and overlapping (at corners) of the styrofoam insulation to seal my flower room.

 

[superstoner1]

I used 24 tubes of caulk on a 6x10 room and rubber paint on the walls let's me just wash the room

 

[AlecTheGardener]

I used 24 tubes of caulk on a 6x10 room and rubber paint on the walls let's me just wash the room

Exterior satin latex, also another coating that washes very clean.

*low VOC exterior satin latex*

 

[superstoner1]

Yes, but the rubber paint seals everything

 

[GroErr]

Yes, but the rubber paint seals everything

Nice, had looked using something like that, i just hate any sort of painting so took the easy way out

 

[AlecTheGardener]

Yes, but the rubber paint seals everything

If you mean the white elastomeric paint sure. Latex is also a rubber though.

Perhaps the benefit is cost differential is the advantage.
*YUP elastomeric paint can be bought cheaply at $90 for 5 gallons vs quality exterior at $175. The elastomeric coating I am referring to is often used as a roof coating for mobile homes or on large roll on roofs.*

A good painter is also sure to properly prep the surfaces they are painting, no matter what paint type they use. Painters caulk does wonders for sealing, and at $1.50 a tube is too cheap to pass up.