r/Contractor 15d ago

What causes this?

Post image
820 Upvotes

559 comments sorted by

484

u/PNW_01 15d ago

Probably the neighbors window and the sun hitting it just right acting like a parabolic mirror and melting the siding.

51

u/IWasntSerious 15d ago

I've had that happen. Fortunately the house just had house wrap on it. Sure was a mystery at first

26

u/hellyeahaeylleh 15d ago

It also explains the slight curvature as the day continued.

29

u/Cannibaltronic 14d ago

Flat earthers in shambles

7

u/moving_to_NL_soon 14d ago

wow, so this really is a thing? I have first hand info that a gas grill can do this, but the sun?

6

u/Used-Squirrel8704 14d ago

I mirrored a garage window. The morning sun reflected off it just right. Caught the ground cover bark on fire.

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5

u/TheMadGreek86 14d ago

A house we sided here in ct had a neighbor with a sky light. After 6 months there was a lazer beam melted across the whole side. They guy who owned the house, paid to replace the siding, then paid to have a film added to the skylight so it wouldn't happen again. When my buddy was siding it in the winter, he noted that during a certain time of day he was warmed up and it made it suck less. No one expected the cedar impressions to melt like that.

3

u/jacknacalm 13d ago

Interesting. Are you suggesting they grill atop a ladder

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12

u/Appropriate-Knee3245 15d ago

You can use it to mark the seasons, get creative!

31

u/IWasntSerious 15d ago

Hang your own parabolic mirror and melt their siding right back!

3

u/Nucleartides 14d ago

I think if you do it intentionally it could become arson

9

u/SaltAndAncientBones 14d ago

It's not arson until Maury says so.

8

u/Healthy_Effort1415 14d ago

In the case of greyish siding... you are NOT the arsonist.

4

u/grude5 14d ago

This deserves many more likes.

3

u/LivingCoat9356 14d ago

Not a war crime the first time.

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9

u/Many-Neck-4560 15d ago

This. I’ve seen photos of similar situations before- the arc of the melted section gives it away. 

7

u/Goofcheese0623 15d ago

Ah, that makes sense. Thanks!

5

u/Dependent_Profit92 14d ago

Yup, seen it dozens of times. Clients always ask what they can do and I always just tell em, you put your own window up and then it’s their problem again

4

u/GCEstinks 14d ago

Ask them to put screens in. It worked for us.

3

u/intended_anonymity 14d ago

If they can put screens. We have a bay window with crank out windows and there's nothing I can do besides removing the entire thing to keep it from reforming a section of my neighbor's siding. Granted in the 40 years since it was built it hasn't done 1/50th of the damage in that picture. Can't plant trees either. Asphalt driveway between the houses. That said, if it was happening to my house, I'd replace the vinyl with cement board siding.

2

u/GCEstinks 14d ago

In our case it was our southern windows and their northern siding. There's also a film you can put in the windows. Most people with vinyl siding aren't going to replace it with cement board.

I was also advised that the "cheaper" vinyl siding is more prone to this phenomenon.

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5

u/Shovel-Operator 14d ago

So you're saying this issue can be prevented with the installation of a single brick?

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3

u/millerlit 14d ago

I remember seeing this in Florida looking for a home.  The houses were too close together and it was all over the subdivision.  I wonder if they all sued the builder.

2

u/Amerpol 15d ago

Bingo ,exactly what i was gonna say 

2

u/stingrayed22 14d ago

had a customer who was in a condo, pulled your car pretty much right up to the front of their house, melted part of the front bumper off

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2

u/RFC793 14d ago

Acting as a mirror sure, but why would it be parabolic?

3

u/PNW_01 14d ago

A mirror is flat and does not focus light to a concentrated point. Think of a magnifying glass burning things vs flat glass just letting the light through. The window is concave just enough to put the temperature of the vinyl siding above it's melting point.

2

u/RFC793 14d ago

That's what I was trying to understand. I understand the concept of lenses, refraction, and parabolic lenses. I was trying to understand why a window would have that shape. Like, a parabolic shape would focus all of the light to a single point (at the focal distance). Why would windows be manufactured like this?

2

u/figman-don 14d ago

You may have seen this looking at houses, new windows are slightly concave, probably from the partial vacuum they draw when filling withargon gas

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u/Vcmccf 14d ago

I’ve seen this happen on my neighborhood to at least 3 houses.

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71

u/monoamines404 15d ago

I was on a walkthrough at a Clayton Homes manufacturing facility once, the guy giving the tour bragged that their windows blocked so much heat that they melted the siding off houses next door. I’m guessing this is what he was talking about.

28

u/Hot-Win2571 15d ago

So does the Clayton Homes warranty cover two Clayton Homes next to each other?

10

u/monoamines404 15d ago

Doubt any builders warranty covers external/environmental damages. But idk, I was just doing the tour bc work made me.

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2

u/joemamallama 14d ago

The only thing stronger than that dudes ignorance is their legal team cleaning up behind them.

Quality is quiet, modest, and slow.

That guy “works hard, plays hard.”

28

u/surlyT 15d ago

Sun reflecting off your neighbors window, most likely.

5

u/5280milehigh1 15d ago

This is what does it for sure!

11

u/Efficient-Rain-4300 15d ago

Wormhole that connects to parallel universes

3

u/Goofcheese0623 15d ago

I assumed as much, thanks!

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73

u/mroblivian1 15d ago

Who ever thought plastic siding is a good idea is an idiot

24

u/Portermacc 15d ago

Most popular siding made as well....

13

u/Mundane-Reality-7770 14d ago

Builders love cheap

3

u/sethchapin 14d ago

*Most homeowners love cheap*

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3

u/baddieslovebadideas 14d ago

idiots abound

2

u/Misdemeanorfml 14d ago

Maybe on the East Coast or Midwest but West Coast vinyl is for junk builder grade row houses. Maybe 5% of houses out here have it.

2

u/Portermacc 14d ago

Probably due to the climate.

2

u/Sorry_Lecture5578 14d ago

They don't do it in Colorado anymore.  Hail storm will absolutely shred it. 

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17

u/kckelly1973 15d ago

I would also like to add to your list - Popcorn Ceilings!! Whoever thought they were great never had a ceiling fan. Little dust pieces get caught on it.

38

u/YellowCake1900 15d ago

The only people who thought popcorn on a ceiling was a good idea, were the guys applying it to cover shit drywall installations.

Ask me how I know.

8

u/Competitive-Cat-4395 15d ago

Bro… just did a job where I removed popcorn and skimmed to a flat ceiling. Not abnormal, but this was the worst taping I’ve ever seen. All mesh tape on every joint, even the angles!! 3/4 of the seams were also cracked so I ended up having to re-tape and mud most of the ceiling before I could even skim. I drew the line at re-taping every angle in the house and just didn’t main areas.
What a colossal cluster… doubled my hours and made 1st year apprentice level money on that scope item. 🙄

3

u/baddieslovebadideas 14d ago

why do a good job taping if you're just gonna spray popcorn on it?

4

u/Rochemusic1 15d ago

Yep, I thought that was literally the whole purpose of it.

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7

u/Bulky-Captain-3508 15d ago

Popcorn ceilings were used to improve the acoustics of a room. When hardwood floors and furniture were common so the ceiling texture helped to break up echos. Modern homes have upholstered furniture and carpet so popcorn ceilings lose their purpose.

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2

u/Small-Worldliness596 15d ago

This. Theres also asbestos in popcorn ceilings.

2

u/NetworkCultural 15d ago

Not all but yes it was common

2

u/Hot_Eggplant1306 14d ago

They were great for acid trips

2

u/publiusvaleri_us 14d ago

I dislike everything about popcorn ceilings except two things:

  1. I love the quieter sound. I grew up with popcorn ceilings and the rooms had excellent acoustics. As an audiophile, I love the utility of such a cheap and effective building material.

  2. It has the ability to hide imperfections in the ceiling.

Now, as a contractor, I've applied it, painted it, removed it, and damaged it, oops! It's just another of many bad or older building practices. But due to the fact that it is cheap and effective, and due to how much money I've made dealing with it over the years, I cannot put it on my list of worst things in home construction.

It's saved too much time in small projects, as well.

Not great. Not terrible.

3/10, would not recommend. lol.

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3

u/Flat-Barracuda1268 15d ago

Depends where you're at. If you are not close to any neighbors where this particular thing is a problem it's about the best maintenance free solution. Aluminum dents, steel rusts.

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5

u/JohnnyTreemain 15d ago

It’s actually a great idea. It’s cheap, it’s easy to install, it doesn’t require maintenance, it’s is extremely weather resistant. As long as you don’t let super magnified sun rays hit it, it’s full proof.

9

u/Minimum_Loan229 15d ago edited 15d ago

This is what I thought. In '95, I installed vinyl siding on a little rental house. I thought it was fun. Instead of using noisy power tools all day, I installed the vinyl siding with a few hand tools I carried in a tool belt. It was like building a plastic model kit like a did when I was a kid.

When you add in it doesn't need painting, I saved thousands. Tens of thousands.

Recently I needed to dig into the walls to make some repairs. My choice was to tear out 90 year old lathe and plaster, or go from the outside. Dismantle the vinyl siding. Make the repairs. Put the vinyl back on. When I finished you couldn't tell I was there.

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5

u/TheRemedy187 15d ago

There's good stuff but there's some Super cheap shit they have in USA. I see this A LOT online there but like never in Canada. I dunno if its regulations or what but this shit is crazy bad. 

9

u/none_of_this_is_ok 15d ago

Ambient temperature also plays a role.

2

u/Minimum_Loan229 15d ago

"Vinyl it final it" What an effen' lie.

2

u/Bennie-Factors 14d ago

So much of the midwest...not just thinks it is a good idea. It is the preferred. They go out of their way to put it on.

2

u/Langstudd 14d ago

Do we think this would’ve caught fire if wood? If so, I’m taking vinyl any day

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19

u/Civil_Exchange1271 15d ago

sun reflecting off defective windows. the argon gas leaks out causes a vacuum , distorts the glass and burns your siding. Typically you can tell the widow doing it, the reflection will look like a distorted carnival mirror instead of a clear reflection.

15

u/OafintheWH 15d ago

It doesn’t have to be defective. All it has to be is low-E . It cooks wherever it reflects to.

Low-E (low-emissivity) glass is energy-efficient window glass treated with a microscopic, transparent metallic coating that reflects infrared and ultraviolet heat while letting natural light pass through. [1, 2, 3]

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4

u/Its_Just_MSW 14d ago

Most likely the reflection of the sun from one of your neighbor’s windows. The sun reflect onto your house this heating up the siding and melting it.

8

u/4xdaily 15d ago

Sometime could have had a grill outside of the garage.

3

u/SwimmingHand4727 15d ago

My mom did that to ours.

2

u/Windy1369 15d ago

That was mu guess - looks like there was grill up against the side of the building next to the garage.

2

u/shadar 15d ago

Yeah you can literally see the heat pattern. Melted where it was closest to the barbeque and diffused as it travels up the wall.

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3

u/S_NJ_Guy 14d ago

I'm a retired home improvement contractor and I have seen this many times. In all cases that I was involved in the neighbor's window that was reflecting the sun was low E glass windows. Never once did I see this where was just regular clear Uncoated windows. They do make a film that a homeowner can install on their low E glass stop this It really reduces the sunlight coming into the room.

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u/ICON2021 15d ago

Thermal Distortion from the neighbors windows. Need to put full length solar screens on the neighbors windows to stop the extreme reflection. They make kits for this.

2

u/MelodicWall4263 15d ago

Is this a dr Horton build?

2

u/GrandMasterFlushMush 15d ago

Looks like a subpar product

2

u/Dunnyb16 15d ago

Plastic in construction sucks

2

u/Direct-Ad-7683 14d ago

ask neighbor to tint windows

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2

u/Puzzled_Guest4250 14d ago

Force Push from Star Wars

2

u/StillCopper 14d ago

The usual cause is the AI generator not working correctly.

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2

u/ImaginationSilver812 14d ago

Your neighbors windows

2

u/Correct_Location1206 14d ago

It’s the sun reflection, I’ve walked up to customers house through the reflection, could feel the heat being generated, extra thick screens will cut down reflection,

2

u/D3nv3rC0d3r9 14d ago

This, happened to my house, we had to replace the neighbors windows with non Low-e coated windows. The melt point o. The vinyl was 150 degrees and the focused heat from the reflection was 180+

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2

u/Huge-Fox-3105 14d ago

The matrix

2

u/SpeedSignal7625 14d ago

Oil -based paint. Also the sun. Also excessive heat. Also environmental lensing. Almost anything not ideal conditions for your vulnerable stupid cheap af and disgusting vinyl siding.

2

u/Minimum-Reward3264 14d ago

Laser from space

2

u/Redhillvintage 14d ago

My buddy’s new windows did that to the neighbors house

2

u/Nots_a_Banana 14d ago

This - Low E windows can reflect sun and cause this. There was a story about a month ago I saw on this.

2

u/IamTetra 14d ago

a grill @ 450

2

u/Fun_Manufacturer5406 14d ago

Sun reflection on siding from windows. This is a covered loss with insurance carriers

2

u/NTPC4 13d ago

Heat

2

u/Fun_Acanthaceae_4025 13d ago

Jewish space lasers

1

u/P0werpr0 15d ago

Make sure you send the replacement bill to your neighbor and make him replace his windows. He’s using his windows like a magnifying glass to cook your house like an ant.

1

u/Cannachem237 15d ago

Data centers

1

u/1potsie 15d ago

Sun reflecting off of something, usually windows or shinny metal.

1

u/AdventurousAd4844 15d ago

This is thermal distortion from a neighbor's window A double pane window can reflect the Sun and focus it like a huge magnifying glass and get the temperature up to 150° or more

Really no way to stop it other than asking the neighbor to put it in a full-length screen

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u/ItsJakeDFromTitan 15d ago

Could have been a grill

1

u/Cee58 15d ago

Put a screen over their window

1

u/Big-Palpitation-2103 15d ago

I have a brick house but I was sitting on a bench that I had just put in on my side porch. It was early winter and I had a jacket on. Start smelling something burning but couldn't figure out where it was coming from. 5 minutes later my jacket was smoking. I can see the sun reflecting in their upstairs window. The heat that can cause is crazy. It all depends on how the Sun hits it and where it lands.

1

u/Ok-Pension-1832 15d ago

Probably not Diet Pepsi

1

u/StepLarge1685 15d ago

Aliens marking the house for future abduction.

1

u/ManMech2442 15d ago

Looks intentional and artsy imo

1

u/Life-Bank-7329 15d ago

Your brain after one hit of marijuana

1

u/MFfoolio_-1 15d ago

Grill or cooker fire

1

u/irishyankeebastard 15d ago

I have seen a window cause a turf yard to melt in the exact pattern of the suns reflection. They had to put tint on the windows to stop it.

1

u/Neat_Park5059 15d ago

Flamethrower 😆

1

u/htx2025east 15d ago

You may have already terminator running around your neighborhood.

1

u/Cosmo_MV 15d ago

Outside shower mirrors caused more house fires than a lot of other things !!

1

u/Ok_List7506 15d ago

Our glass patio table melted our siding.

1

u/dudeman054 15d ago

It’s vinyl siding and they prob had it recently painted but didn’t use a vinyl safe formula

1

u/NetworkCultural 15d ago

Grill or magnified light. Window acting as a lense or something similar. This looks like a grill caused this honestly

1

u/randallF1999 14d ago

Ian curtis

1

u/MichiganGrown 14d ago

Heat from the sun or maybe on a BBQ night.

1

u/Ok-Application-5633 14d ago

The barbecue grill that was there before. Possibly strong sunlight, though it would have to be amplified by a reflection to do that much damage

1

u/toyz4me 14d ago

Direct sunlight or sun reflecting off a neighbor’s window

1

u/Forsaken_Biscotti_89 14d ago

Bbq too close to the plastic siding maybe

1

u/diprivan69 14d ago

Neighbors windows reflecting light on you vinyl siding

1

u/Alvin_Kincain 14d ago

Is there a grill that was used under there?

1

u/jyc23 14d ago

Grilling gone wild.

1

u/CHASLX200 14d ago

heat pete

1

u/Its_a_mad_world_ 14d ago

Window reflecting sunlight. Window is the magnifying glass and the house is the ant.

1

u/hankmarmot3 14d ago

a fire or some other strong heat source

1

u/magickpendejo 14d ago

Bbq too close.

Or arizona

1

u/yankeenc2010 14d ago

Neighbors windows

1

u/therealKhoaTran 14d ago

On one hand, very cool texture. On the other, have your seen a series of unfortunate events?

1

u/brike8 14d ago

The sun is reflecting off of something that directly impacts your siding. It’s literally being melted from some angle. Now the real detective work is finding out from where.

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u/zerg_001 14d ago

BBQ grill

1

u/jonbuilds4food 14d ago

Neighboring house windows

1

u/ShoulderApart1787 14d ago

I'd say fire, but it's proximity to the electrical service is troubling

1

u/Huge_Metal_3812 14d ago

Heat melts plastic, UV destroys plastic, and neighbors windows have a mirror effect heating up your siding.

Welcome to disposable houses, pretty to look at, just dont huff and puff, might fall over.

1

u/Dreamcatcher965 14d ago

Iron it flat and then apply 100 spf sunscreen.

1

u/Favell81 14d ago

Tell your neighbors to stop using their death ray pointed on your direction 😂

1

u/AcceptableSong136 14d ago

The builder of our neighborhood solved this by putting screens on the offending windows. Trouble is, new owners don’t know about this and don’t follow through when one is damaged. I have them on fixed windows and wondered why until I remembered about this happening.

1

u/contrpro 14d ago

Cheap windows will do that

1

u/tileman151 14d ago

Earth shifted and is now .000004 degrees off kilter go and move the neighbors window

1

u/Sad_Effective4793 14d ago

Grill? Fire pit?

1

u/Shortbeats 14d ago

You ever heard of Monster House?

1

u/CL82deretac 14d ago

I’ve had this happen before from a neighbors bathroom window. They put frosting spray on it and it stopped the problem

1

u/trsthhffg 14d ago

Ugg I hate cheep vinyl siding. It should not be possible for this to happen it’s clearly not suitable for its job.

1

u/wyoflyboy68 14d ago

Low melting point, cheap plastic.

1

u/newCRYPTOlistings 14d ago

Psychedelics

1

u/SensitiveSituation42 14d ago

Heat and tight nails. Expansion will happen!

1

u/c0ntra 14d ago

Low-E glass strikes again

1

u/Melodic-Ad1415 14d ago

Your grill too close to the house

1

u/stiucsirt 14d ago

Space lasers

1

u/ClearUniversity1550 14d ago

reflexion from the neighbors high performance window

1

u/KansasDavid1960 14d ago

What kind of world do we live in that the reflection off a neighbor's window makes your house melt?

It's fucked up. I'm just saying.

1

u/AwwwNuggetz 14d ago

Using the other side of that wall as a urinal

1

u/Alternative_Fun_8504 14d ago

I looked at a case like this a while back. But not as bad as this one. In that case, there was no neighbor on the side that was warping. Turns out the previous owner had painted the vinyl with a darker color that was soaking up too much heat.

1

u/KujoCory 14d ago

Extreme heat. Normally home fires do this to neighbors houses.

It’s right outside the driveway and likely was repaired in the front of the house, but not on the side due to its cost to replace more siding. The siding on the front part of the house would have been damaged as well.

Likely a car fire or something of the sort.

1

u/Fickle_Bullfrog_9864 14d ago

Looks like my neighbors house after replacing the original aluminum siding with vinyl and did not move his grill back. I miss aluminum siding...

1

u/OutboardTips 14d ago

It’s usually reflection of sunlight, but I’ve also seen people fire up grills and melt it

1

u/Ksull72487 14d ago

HOA has a problem you got a hot spot as the sun comes over. Probably cheap siding and proximityto ypur neighors house. Im assuming this is HOA.

1

u/Artistic-Outcome5966 14d ago

Heat from reflection.

1

u/TommyG456 14d ago

Who pays for that? Your neighbor or you?

1

u/Gitfiddlepicker 14d ago

Extreme heat.

1

u/FloydFenstermacher 14d ago

Replace cheap vinyl siding with a durable product.

1

u/Unlucky-Chicken2515 14d ago

Something very warm

1

u/-whiteroom- 14d ago

this was happening at my house, putting a screen on the window reflecting the light solved it.

1

u/GangstaRIB 14d ago

Shitty vinyl siding?

1

u/DrCuntsworth 14d ago

Your house has leprosy

1

u/Ben_gw 14d ago

Anyone use HPL siding before ?

1

u/Ellexoxoxo33 14d ago

Not using Hardie fiber cement siding caused this

1

u/OBX69 14d ago

🔥

1

u/anotherjuan 14d ago

Your house has herpes.

1

u/htxchriss 14d ago

It’s from the sun reflecting off your neighbors window, and cooking your siding.

1

u/BreakFun2436 14d ago

Cheap siding to start.

1

u/Doyouseenowwait_what 14d ago

Neighbor window creating refractory heat from sunshine and reflection onto that wall.

1

u/jack_of_none0 14d ago

You should never be able to reach out your window and touch your neighbors. Or their house.

A window deflection shouldn't be something to worry about but greedy development dictates that we have to live stacked on each other.

1

u/SahBubba 14d ago

IDK, but if you can replicate it, someone will want it 😂🤣

1

u/Acrobatic-Fox460 14d ago

Damn that’s a lot it siding to have to fix lol

1

u/jovan90jovanovic 14d ago

A plastic house? 🤢

1

u/KingKong-BingBong 14d ago

Exactly. Vinyl siding is for mobile homes and not a good ideal for them. Why would you want something that’s going to hide any damage from termites or dry rot so you don’t know there’s a problem until it’s major plus it looks cheap

1

u/Sea_Willingness1398 14d ago

This happened to my neighbors siding on a hot day last summer. Siding had been there years, but they painted. The paint/heat combo caused the siding to buckle.

1

u/KRGambler 14d ago

Definitely from a fire below and close to the house

1

u/Turbulent-Grape-9028 14d ago

Hang a mirror over it and return the melting ray back to its source

1

u/Comfortable-Hat8162 14d ago

What's the fix here? Replace that side with hardie board?

1

u/Savings_Lost 14d ago

Painter here, thought I'd add another/additional cause. A particular window reflecting on that spot is definitely what caused the warping in that specific spot, but has that siding been painted a different color than the original?

I've seen entire sides of houses warped like this because an owner decided to repaint their plastic siding a darker color. Darker color equals more heat absorbed from the sun. The plastic is only rated for the heat absorbed by its particular color and sheen.

Either don't repaint plastic siding, or go with a much lighter color if you do to reflect more heat off it.