dont have mylar whats the next BEST THING

is there something else i can use to cover the walls of my flowering room

panda roll or flat white paint

Behr ultra white flat latex paint, 2-3 coats.

go to walmart, they sell a emergency blanket in the sporting goods, like $1.99

dolllar store shiny wraping paper it is mylar on the bck! buck a roll cant beat it

I second flat white paint is probably best vs the mylar. But one alternative, I have had success with multiple times is white poster board.

Try it, works great, just staple/pin it up. Step 2: Save money for mylar and order eventually though