What do people think of this material??

i Cant get mylar as no where near me sells it but homebase and b and q are near me i hve found space blankets and stuff at those shops but what do you guys think about this?
Thermawrap General Purpose Wrap, 5060078160421

I saw that stuff at home depot and was thinking about getting it, but... if you read what its made of... the reflective metalic part on the outside is aluminum... so, Idk... also it traps heat... just pointing those factors out for ya. people say emergency blankets work well...

it has foamy stuff in the middle of it if I remember correctly... Idk... I wouldt use it, but then again Ive never tried it.

sounds like it would insulate too much, meaning your grow room would be too hot? Can you just get some white paint and paint the walls? I know that's not always an option, but its 100% better than that stuff.

hell... to each his own... if it works it works

Just use flat white paint. There is a roofing paint thats supposedly even better at reflection

(people refer to it a elastomer, or something close to that. I just remember the root word meaning it stretches, nothing to do with its reflective properties)

I used an exterior grade. Figured hold up better to the moisture.

(plus pics are easier to see against paint then mylar)