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RE: Spanish Tile Roof

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Just one more note.  Because there is so much variation in weight, I always call out ¾ in. thk. plywood sheathing instead of 5/8” when tile is used.  You get more nail bite and no deflection if they go old school with the heavy stuff.  A lot of construction gets loose from the Architect that far down the line and you may not know what product actually got installed, particularly on tile re-roofs.  I usually err on the side of heavier, (12-15 psf) in calcs even if the GC swears he’s using the light-weight stuff on the front end.  FYI, there are some light weight versions that are as little as 6-7 psf and look pretty good.

 

--Don

 


From: Rich Lewis [mailto:seaint04(--nospam--at)lewisengineering.com]
Sent: Wednesday, October 04, 2006 3:27 PM
To: seaint(--nospam--at)seaint.org
Subject: RE: Spanish Tile Roof

 

Thanks to all for the input.  I didn’t realize there was so much variation.

 

Rich

 

 


From: Paul Feather [mailto:PFeather(--nospam--at)se-solutions.net]
Sent: Wednesday, October 04, 2006 3:28 PM
To: seaint(--nospam--at)seaint.org
Subject: RE: Spanish Tile Roof

 

Depends

 

Real Spanish tile can be very heavy, like 19 psf.  If the roof is true two piece overlapping half barrels with mortar the roof is really heavy.  It is much more common to use S tile that looks like Spanish tile (sort of) than to actually go to the expense and weight of using real Spanish tile.  S tile is more like regular roof tile at 8 to 12 psf.

 

If you are in a historic district or strict municipality, or maybe it is just a real high end product, then real Spanish tile may be required.

 


From: Rich Lewis [mailto:seaint04(--nospam--at)lewisengineering.com]
Sent: Wednesday, October 04, 2006 12:45 PM
To: seaint(--nospam--at)seaint.org
Subject: Spanish Tile Roof

 

I need some help from a southwest engineer.  I’m designing a roof with Spanish tiles.  It’s the kind that looks like half of a terra cotta pipe running up and down the slope, alternating direction.   What is the typical design dead uniform loading for these?  What goes under these, a waterproof membrane?  Are they typically supported on plywood or wood battens?

 

Thanks.

 

Rich