White Flat Paint VS Aluminum Foil?

Okay, I was messing around with Alum and it got all crinkly and shitty and was tearing, and I was thinking how in the hell can this reflect light with all these crinkles.. so then I bought some cheap flat paint from sprawl-mart and painted the walls and hung white poster board on the doors. Now I should buy some 2 ml mylar but I am too cheap.. Now I am thinking, the alum was way better (if it wasnt crinkly and shit).. Any thoughts on this, some people say Alum sucks, some say just use white paints, but I REALLY WANT TO MAXIMIZE my 400 Watts of MH/HPS + 400 Watts of Flors.. I should just buy some mylar huh? But I want to be able to DISINFECT the closet after each grow, and if I put up mylar or AL foil I cant scrub the walls.. When something bumps the walls it rips.. Any suggestions, I wish there was some super duty thick AL foil you can buy.. I can do AL foil, because its cheap.. But I dont want to spend $40.00 for mylar every grow..

You can go buy emergency survival blankets that are 1ml mylar at 'Sprawl-Mart' for $2 in the camping or hunting department. 54"x82" is what I bought. Tape it up and there ya go. When you want to take it down if you ruin it...it cost ya $2. I was using foil and this stuff looks like it will work way better. At least it looks way better. I could go on and on about reflectivity and does it really make a difference. (there's your opening HD)

And since you brought it up...I've seen some pretty unreal grows done in grow rooms that were a loonnnggg way from having optimum reflectivity on the walls. And these people were into growing big time. For big profits. Yes they used big lights with lots of lumens, but no more than anyone would use in smaller personal grows comparitively. They just had 20'x20' rooms so needed more of 'em.

But I use the stuff. And before that I used foil with all kinds of terrible light 'black holes' all over the place but they didn't go nuts with a massive growth spurt when I put the mylar up.

I think painting the walls white and everything else in there would work perfectly well. I doubt very much if you'd see any difference at all (except in your billfold) if you used the most reflective mylar out there.

Oh wow, good ole SPRAWL-MART for $2.00.. for 54 * 82, I think I going to the nearest SPRAWL-MART.. (There is one like every 20 blocks)

What side out?

Okay, I got it cost me $1.96 + tax, good deal shit is shiny as hell. Now here is the question, what side do I hang it out.. Both side look about the same to me, there seems to be one side that is duller, but it could be a trick on my eyes..

I'm high (not really), Both side are the same?

On the one I have each side is the same. If there was a difference though I'd for sure put the shiny side towards the plants.

Thanks, I was fooling myself they were both the same. Thanks for the IDEA.. That was way cheaper than buying mylar and it is MYLAR, for $2.00 I covered 3/4 of the closet. Mr Benson, you are a life safer... Thanks!