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Interesting Craigslist finds

Because a ton of manufacturers recommend it that way?
Different kinds of metal, too.

We already covered this, seems like...everyone has an opinion.

The correct answer is- don't put screws in your roof.
screw-placement.jpg
 

Just got back from looking at this.
Sadly its not what it seems, the picture is probably 15 years old, and it's a shell of what's shown.
 

Just got back from looking at this.
Sadly its not what it seems, the picture is probably 15 years old, and it's a shell of what's shown.
Cause taking up to date pictures with your smartphone is soooooo hard .
 
Cause taking up to date pictures with your smartphone is soooooo hard .
It needed 12 tires just to get it off the property, The boot between the cab and sleeper has been missing for awhile, All the roof vents on the trailer were missing, and I'm betting it's been sitting at least 10 years,
Reg is non op for at least 5 years.

The trailer is filled with what looks like the guys personal life, packed wall to wall with clothes and belongings.

The Cat did fire off though. I didn't even get to doing a basic pretrip to inspect anything.

For me the truck had potential but the guy was not in the mood to separate. And I wasn't that excited to push.
 
I think it stems mostly from back in the day when there wasn't EPDM washers on the screws. It would make sense to put it on the high spot where the majority of the water wasn't running in the channels with unsealed, nailed fasteners. With EPDM washers now, its a moot point.
It also allows the screw to flex some since there is more sticking out. I have seen 1/2" long slots ripped in roof tin from thermal expansion and contraction.
 
I think it stems mostly from back in the day when there wasn't EPDM washers on the screws. It would make sense to put it on the high spot where the majority of the water wasn't running in the channels with unsealed, nailed fasteners. With EPDM washers now, its a moot point.
Those washers leak. A screw in the peak can completely fall out and it still won’t leak but a couple drops in a down pour.
 
:laughing: On top of the ridges? :homer: Why does anyone think this is how to install tin roofs or siding? And to top it off.. Nails on the ridges.:shaking:

You use 2x2 for purlins or you mounting directly to the rafters? Atleast 2x4 for the purlins.
purlins go on edge
trusses go on 8' spacing
 
It needed 12 tires just to get it off the property, The boot between the cab and sleeper has been missing for awhile, All the roof vents on the trailer were missing, and I'm betting it's been sitting at least 10 years,
Reg is non op for at least 5 years.

The trailer is filled with what looks like the guys personal life, packed wall to wall with clothes and belongings.

The Cat did fire off though. I didn't even get to doing a basic pretrip to inspect anything.

For me the truck had potential but the guy was not in the mood to separate. And I wasn't that excited to push.
Oh, i was talking about the seller :
If he had been able to take the 3 minutes out of his busy life to take some pics and post them on the ad , he could have saved you a trip .
 
Oh, i was talking about the seller :
If he had been able to take the 3 minutes out of his busy life to take some pics and post them on the ad , he could have saved you a trip .
I asked him twice about any interior pics, and got a run around, My bad, the signs were there.
 
purlins go on edge
trusses go on 8' spacing
:confused:
For construction with metal roofs, purlins go on the outside (on top of the rafters). Same for metal siding, outside the beams or studs. This is so the metal is not ran parallel with the rafters and doesn't bow between them.
For most home applications, purlins are on the the inside, to help prevent/limit sagging, and a sheet of plywood is on the outside to attach shingles and other roof materials.
 
The 8' spacing is for steel beam rafters with purlins generally 24". Wood construction is going to be in the 12"-24" range for trusses/rafters and Usually only one purlin in the middle and a purlin brace going back to the base of the ridge beam, with some exceptions like cathedral ceilings.
 
Those washers leak. A screw in the peak can completely fall out and it still won’t leak but a couple drops in a down pour.
The reason they spec them on the flat is too many meth head installers run them in until they stop which will bend the tin if it's on the peak.

Aaron Z
 
Only made of 1/4" plate, but could be a good deal for someone:


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$26k? Are they fucking stupid? I could see $2600. For parts.
 
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