Can polystyrene/styrofoam be a fire or other hazard if subjected to direct sunlight behind a window?
Submitted by bluejeans90210 t3_11aeyuw in DIY
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Comments
[deleted] t1_j9rnogr wrote
[deleted]
Diligent_Nature t1_j9rohay wrote
It could get pretty hot between the glass and EPS, but EPS has a melting point of 212° F (100° C) and an ignition temperature of 680°F (360°C). It won't get that hot.
allangee t1_j9rosov wrote
You're actually keeping things cooler because you're reflecting a lot of the light before it comes through and shines on anything. You won't hit nearly high enough temperatures for a fire or any off-gassing.
bluejeans90210 OP t1_j9rps07 wrote
Can you see an issue with this, apart from being an eyesore? The crt monitor on the left is anchoring the cardboard on the left, and the wood is there to make all the cardboard stand up straight. But I had to wedge a couple of things between the monitor and wood. I have cinder blocks at the bottom of the right hand cardboard, with the imac further jamming the wood via cinder block behind it. https://imgur.com/a/7A6jtoj
bluejeans90210 OP t1_j9rpskx wrote
Can you see an issue with this, apart from being an eyesore? The crt monitor on the left is anchoring the cardboard on the left, and the wood is there to make all the cardboard stand up straight. But I had to wedge a couple of things between the monitor and wood. I have cinder blocks at the bottom of the right hand cardboard, with the imac further jamming the wood via cinder block behind it. https://imgur.com/a/7A6jtoj
bluejeans90210 OP t1_j9rt8zl wrote
The window that is causing trouble is up pretty high, I'd probably need scaffolding to do it, and putting it on the inside isn't an option. The foil I've put up on the outside has actually held up fairly well with storms and things like that.
CrossP t1_j9rx2q7 wrote
It'll be fine.
SlipSeven t1_j9rzble wrote
No. It'll be fine. Unless the window is a magnifying glass
Tbuzzin t1_j9sedsq wrote
Bruh, you're gonna be fine!
SuperHeroCow56 t1_j9sfkrl wrote
Why not just get some black out paper? It's only a few dollars at Walmart/Amazon
MyMomSaysIAmCool t1_j9sjhps wrote
It's not going to ignite on its own. But if you do have a fire, it's a big panel of combustible material right in front of the window that you might need to use as an emergency exit.
fuzzy11287 t1_j9sp1sf wrote
Why not just tape up the cardboard to the wall?
iamahill t1_j9t0oa4 wrote
You’re fine.
Guygan t1_j9t3sne wrote
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bluejeans90210 OP t1_j9tw1gb wrote
Not in north america, can you put that on the outside of the window?
bluejeans90210 OP t1_j9tw5qj wrote
It's heavy and doesn't tend to stick, I had thick plastic like a trash bag only thicker, but nobody knows where to get it anymore.
SuperHeroCow56 t1_j9twe4y wrote
They go on the inside. Blocks all the light and keeps a good amount of heat out as well. For outside the window you can do a sun screen. Essentially blocks all sun from hitting the window and blocks a ton of the heat
bluejeans90210 OP t1_j9txntd wrote
I knew someone in mining and we put up foil with vinegar to make it stick, but it's not really practical for that desk being in the way... we put up one of the foils on the outside and that still seems to be mostly intact. We have something locally available called contact paper which seems very much like what you're talking about, at least from what I saw on amazon.
Calvinjamesscott t1_j9rlpf0 wrote
No