What could have done this to my windshield?

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Posh-Percival@reddit

Tennis ball/ racket ball / baseball. Street hockey mishap seems like a good hunch. You’d be surprised to know just how fragile that windshield is. I am an auto glass installer

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ktappe@reddit

A tennis ball could not be propelled fast enough to do that. They are (relatively) soft.

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SpaceX1193@reddit

You’ve never seen how tough yet fragile glass like this can be?

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Tempered glass? You literally have to break the surface tension to cause a fracture, which generally requires over 10,000 psi. It is highly unlikely a tennis ball could deliver that sort of an impact short of being shot out of a cannon or something.

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SpaceX1193@reddit

Well apparently I’m Superman!

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twinturbos@reddit

I find it extremely hard to believe that a tennis ball or racquet ball could do this to a windshield under any conditions.

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Posh-Percival@reddit

Like I said, you’d be surprised how fragile glass is. I broke my own windshield by smacking a mosquito with my bare hand.

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yukonwookie@reddit

Can confirm I’ve broke a windshield in a work truck by having my feet up on the dash and lighting hitting it turning my legs

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AthleteSingle228@reddit

Impact from the inside -> outside are a lot more fragile than outside -> inside based on the glass shape so it's not really a driver in glass fragility

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NightmareWokeUp@reddit

Possibility of it having been broken beforehand but being so miniscule that you couldnt see it?

My windshield caught a block of ice dead center impact at 130kmh. Shook the whole car the block was at least 20-30cm in size.

Ever since i trust windshields so fucking much lol, i felt it literally pushing down the car against the suspension and the impact was super loud. Scared the crap out of me lol.

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AcceptableSociety589@reddit

I think it's less whether a ball is capable of breaking it and more that the point of impact for a ball would be smaller and that the break does not align with the type of break that you'd expect from a ball. A ball is going to have the most energy at the center point of impact, not in a ring like this

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MJ4Red@reddit

There is chipping on the right side, maybe pipe or open tube of some sort impacted it?

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throwedoff1@reddit

The base of a beer bottle.

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SAD-MAX-CZ@reddit

Our company cars get windshield smashed fat on freeways. I would like some protector foil or something.

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LCJ100@reddit

Looks like Moonknight accidentally dented your windscreen.

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No-Warthog-6718@reddit

Apparently she cut off Khonshu 😵

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LCJ100@reddit

She's gonna feel the wrath of the Moon God!

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LunarisUmbra@reddit

THE MOON HAUNTS YOUU!

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Electrical_Party7975@reddit

Bottle

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Acceptable-Stop-879@reddit

Chocolate starfish

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NetworkGodN8@reddit

Only time I’ve seen that is when I hit a foul baseball into my moms windshield

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dantodd@reddit

Corvids will drop nuts to break them open. Do you have walnut trees in the neighborhood by any chance?

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Ambitious_Branch2583@reddit

heat

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Any-Trainer-8261@reddit

Neighbors kids, always

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wechy2035@reddit

Is your ex mad at you? Maybe she or he sat on it and farted!

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kermitte777@reddit

Looks like a baseball hit it.

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No_Attempt_4263@reddit

Could it be from a bird droppings either a shell, nut or stone? Does Idd seem wild, but have experience more than a couple of times how walnuts can make holes in roof and ceilings ^^

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cormack_gv@reddit

If that's from impact, it is very strange. Not a rock or anything curved. Maybe a very sharp impact from the handle of a ratchet or something with a flat disk surface. I don't think even a hammer has sharp enough edges to make the pattern you see.

Others have suggested a defect in the glass. Sounds possible to me, but I can't add any insight. Not a rock!

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benweiser22@reddit

I would think there would be a spidercrack if something hit it. That is so odd looking.

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shmeatfinger@reddit

Safelite guy told me they call these coke bottle cracks, I had the exact same thing happen to me from a rock hitting my windshield on the interstate.

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Stunning_Honeydew201@reddit

I've got one from a rock in my work trucks windshield right now

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djmusketballs@reddit

I'm a Safelite guy and we call it a coffee ring in idaho

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jcat47@reddit

Delamination of glass or tree nut(walnut, acorn). Had that happen. Hit and nothing. Heat cycle later, night then day and perfect circle crack.

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Affectionate-Sun9373@reddit

I do not believe the glass separating would cause it to crack.

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regimenti@reddit

Bullet hole?

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Horsecockexpress1@reddit

Goin wit a ProV1

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deleted_by_reddit@reddit

[removed]

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SnooWords5961@reddit

Previous Safelite tech here.

It is from an impact. What kind of impact I couldn't tell you but we saw lots of fractures like this while on the job.

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theRumbling_@reddit

You must drive on gravel roads a lot because I can see plenty of chips on your window. Could be likely that you had a chip that just cracked out.

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djmusketballs@reddit

Did any landscapers come by recently? Usually it won't break the glass if it's a delamination. May have kicked something flat into the glass

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ironfistofgumby@reddit

Next to any golf course?

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RobbieRvs@reddit (OP)

No, that’s why I’m confused. It’s been in my driveway all week. I assumed street hockey or something and a wayward shot, but you’d have to really smoke it to do this right?

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Tje199@reddit

People keep saying "not an impact" but I have a near identical crack on my own windshield from a huge flat rock that a semi kicked up. It must have landed perfectly flat on my windshield (large surface area impact) so your guess of street hockey or similar might be right. Or a basketball maybe.

I guess it could have been something while you were driving but you'd probably have noticed, mine was extremely loud.

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nitrion@reddit

Yeah, rocks on windshields are insanely loud. I had a semi kick up a medium sized pebble at me, and the impact on my windshield was startlingly loud. It only chipped my windshield, too. Not much serious damage.

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VanillaGorilla-@reddit

Definitely an impact

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Stardewismyname@reddit

Same! A rock impact on my windshield looked similar to this.

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MagicOrpheus310@reddit

Definitely something like a wayward golf ball from nearby, like your neighbour was practicing with his sand wedge in the backyard and chipped it over the fence... Looks more like a ricochet or glancing hit rather than direct impact, like it's bounced and hit it, not been directly thrown at it

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Hayben906@reddit

Something definitely hit it for sure. Is there a tree or anything tall near the car?

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methane-illumination@reddit

I’m sorry for tbagging your car :/

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deleted_by_reddit@reddit

[removed]

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timetorock79@reddit

I’ve seen phone holders do this under extreme heat especially when people remove them

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Medium-Poem7569@reddit

Bottom of Stanley cup? Got a mad girlfriend? 😂

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ILoveCars23@reddit

Any squids or maybe even their beaks falling from the sky lately?

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supercat-nuke@reddit

The coconut

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IHave50Felonies@reddit

Depending on local birds, some use rocks for nests

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Top-Pea9807@reddit

Do you have kids ? I would start there

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RandyDeeds69@reddit

My guess is a golf ball impact

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The_Only_Saint@reddit

Someone bit your windshield...

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rust1c13@reddit

Moon Knight

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mascanabiss@reddit

Some call it a “coffee cup break” definitely something hit it.

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dphoenix1@reddit

I had a roommate that drove a beetle that had this exact shape of crack in it. Never did find out what happened, but I am kind of with the other comments that this is probably due to a manufacturing flaw.

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Striking_Dream7803@reddit

RIP Ringo Starr

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BroadlyValid@reddit

Lawn care worker fling a rock with a mower/ edger?

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Initial-Wrangler6931@reddit

Rock or projectile

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MobileDetailingWiz@reddit

Golf ball probably

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Mr_Danger69@reddit

Me and a bucket of baseballs :^)

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bdinero93@reddit

A big flat rock skipped across my windshield before and it left this same mark if not more rounded

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Hannsom@reddit

If you had a Tesla you would know exactly what happen lol

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DrSideShowbob@reddit

That's really odd. If it was an impact, you would assume it to be messy looking right? Spider veins and sharp angles? I dont know how to word it, but you get what i am thinking right.

I was wondering if it could have been a defective spot in glass, and with the rising summer temperatures it just popped?

If you figure it out let me know. Its interesting

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plausocks@reddit

im gonna say manufacturing defect it looks like the outer pane is delaminating from the binder plasticcc

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Bigg-Sipp@reddit

Depending on where you are, hot glass is very fragile. I work for Safelite and when we bring the glass out of the vans, we gotta setup under or tree or leave the glass in the van outta sunlight and heat cause when you’re applying the glass, that shit’ll snap in two EASILY. I’ve broken a windshield once because I didn’t realize that the customers house had windows that were reflecting onto where I set my glass. When I went to clean it, I sprayed glass cleaner on it and it spidered to shit. I had to put their old cracked glass in back in but luckily they understood and knew of that problem and just forgot to tell me

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Beneficial_Present98@reddit

Large rock

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triniumalloy@reddit

De-lamination from a flaw in the windshield making process.

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Cleercutter@reddit

Glazier here.

Nah, definitely an impact from a rock or ball or something round and hard.

Delaminating on tempered laminate(what windshields are) wouldn’t start that process in the center. It would start failing at the edges.

If it were a delaminating issue, that would’ve been there from the start.

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legomotionz@reddit

Nope this is an impact. Delamination on its own without impact does happen but almost always along the edges of the glass. The impact is causing the separation between layers.

Source: I fix windshields for a living. Some like this can even be fixed.

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Bumper6190@reddit

I am with you!!

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JahHappy@reddit

This was my guess too. This doesn't look like an impact of anything to me

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Tje199@reddit

I have a similar impact and it was a from a bug-ass flat rock that a semi kicked up. OP suggested street hockey and that might make sense. Whatever impacted had a wide surface area.

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Far_Kaleidoscope8125@reddit

The shape is from a defective windshield. But something generally causes that defect to reveal itself.

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Cleercutter@reddit

Rock

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nontiago@reddit

I've worked in glass for 20 years, and this is not a defect but an impact. This was most likely caused by a round object that isn't too dense. Not like a baseball but something more like a street hockey ball. I've replaced plenty of similarly damaged windows. I currently work for a glass manufacturer, and part of my job is making determinations regarding defective parts.

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87lane@reddit

I had the same thing. It was a large rock from a semi tire, but it does the circle shape crack if you have a tint layer on your front window.

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Phishman9@reddit

I had the same exact thing happen to me when something hit my windshield on the highway. It looked like a lug nut hit it perfectly or something. Luckily my insurance covered the windshield replacement

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Old-Shame4104@reddit

Sailor 🌙

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fullblownshantytown2@reddit

Rock you see impact chips i fixed these for years

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Weary_Loquat_8331@reddit

red Koopa shell

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alacoque3030@reddit

A UFO

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its_just_flesh@reddit

A baseball

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Brando828What@reddit

Walnut

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VirtualCantaloupe88@reddit

I used to work at an auto glass shop. Its from an impact, rock or something. The crack could’ve been tough to notice at first but a change in temperature caused it to grow and delaminate a bit so it catches the light now. You can potentially get it filled with resin at a shop. I filled a lot of cracks like this when i worked there but im not sure about how successful it is at saving the glass

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Top_Western8974@reddit

I've seen that! It happened to my dad's isuzu trooper when I smacked my frisbee on it

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Zack_attack801@reddit

Had this happen from a decent sized rock on the freeway. but you would definitely have noticed the thud if it happened while driving

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lowkey_wannabe@reddit

Side ricochet/glance from small caliber like a pellet or BB gun. This is the answer you seek.

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HaywoodJablowme10@reddit

Ha! That happened to me about 2 months ago. Same round crack. Pretty sure it was a rock.

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slowgojoe@reddit

In elementary school, there was a kid making faces at me during my after school care through one of those small rectangular windows that metal school doors have, and I happened to have a tennis racket and a tennis ball. I smashed it as hard as I could and in a 1 in a million event it hit smack dab in the middle of the window and broke it, just like this.

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Formber@reddit

You got hit with a rock or something and it eventually cracked in the sun. Pretty normal.

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abangbear@reddit

Safe-Lite might know

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richbiatches@reddit

Spent .45 slug

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f0rcedinducti0n@reddit

lol, no.

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f0rcedinducti0n@reddit

a hammer.

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Josipbroz13@reddit

Ex grirlfriend and her baseball bat 🤔

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YorkshieBoyUS@reddit

I had one like that from a pebble. Smack in the drivers side.

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Flexen@reddit

Same here, rock from road chipped windshield that turned into a circle crack.

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XrThumper@reddit

Same here. Was driving on a highway and something hit the windshield, leaving a circular crack.

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invltrycuck@reddit

Rock from a lawn mower, glancing blow

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XLB135@reddit

Anything, really. Two times in my life I have had highway rocks create circle cracks like this that don't spread. It's just the perfect angle and velocity of impact, not any particularly special object.

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helloiisjason@reddit

rock

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deleted_by_reddit@reddit

[removed]

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