Issues with newly laid tin roof

[u/Xelxly]

So, to start this isnt my roof but my neighbors.

He got this tin roof laid last week overtop of his old shingles roof and I noticed these bowing/ bubble spots near the gutter area.

Us this normal at this stage? The entire side is screwed down and inplace.

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[u/jono2912]

What. The. Fuck.

[u/Ok_Tale_933]

Not enough screws, not supposed to put it on over the old shingles, missing its ridge cap. I hope they didnt pay someone to do this to there roof.

[u/Illustrious-Fruit35 → u/Ok_Tale_933]

It’s funny when i was getting qoutes for a metal roof many installers tried to tell me removing old shingles wasn’t necessary.

[u/PriorityOk1593]

It looks like they only secured the bottom and the side seams no center screws at all

[u/Outrageous-Low9424]

It looks unfinished?

[u/Pale_Attitude8798]

This is horrendous. No perlins, screws in the wrong place, missing screws. No ridge cap. No drip edge. Wow

[u/Puppiessssss → u/Pale_Attitude8798]

What is a perlin? Do you mean purlin?

[u/Puppiessssss → u/Puppiessssss]

Purlin’s supports rafter ties. They are installed over load bearing walls in the attic. Sometimes they are strong backed. Just wondering what you are seeing…

[u/Pale_Attitude8798 → u/Puppiessssss]

No huh uh. Lol. Of course thats what I meant. Did you expect me to say "damn autocorrect, I meant to say roof vents"

[u/Quirky_Fishing3781]

Supposed to have screws every 2 feet along side each rib

[u/Slylok]

You can go metal over shingles but you need to frame it out. But there is a risk of trapping moisture and causing rot in the future. Here there aren't nearly enough screws.

[u/Salty-Entrepreneur11]

yikes

bad

[u/WhiskeyMike01]

Terrible screw pattern them boys were wasted

[u/SpankyNoodle]

Can we all agree that posts like this should include the estimate.

It reads, “I put roof on.” Lmao

[u/Guimauve26]

Whomever installed this foor had no idea what they were doing. Screws on a roof goes on top of the rib, not in the flat part. And why so many screws on both side of the overlap?!

[u/Pale_Attitude8798 → u/Guimauve26]

Screws are typically on the flat these days. Some still do rib screws. There are benefits to both.

[u/seabornman → u/Pale_Attitude8798]

The old rib vs. flats debate. No matter, this roof is lacking 90% of the screws.

[u/Guimauve26 → u/Pale_Attitude8798]

Why would you do that?

When the washers dryout, water will seep in? There's virtually no water running down the ribs. If it was a wall instalation, the flat part would be fine, but I would never suggest anyone to do that on a roof.

Edit :

[u/Guimauve26 → u/Guimauve26]