[RE-wrenches] Sharp racking on cement roof tiles

[William Miller]

Peter:

What about the battens?  Did you not have battens supporting the lower two 
rows of tiles?  Did they not require nails that penetrated the comp and 
paper?  Did the battens form a dam?

William Miller


At 07:42 AM 10/30/2008, you wrote:
>Wm,
>Client with ancient barrel tile wanted to keep the precious and didn't want
>us breaking a single one (we cracked three or four just investigating with a
>195lb person up there (me).  Roofer was called in.  Tile was removed under
>the array all the way to eave.   Comp shingle was laid under top row of tile
>and all the way to eave.  PV array was installed and framed (centered)
>nicely.  Two rows of barrel tile were replaced below bottom edge of array to
>eave.  One could not see posts or flashings under the array, and gave the
>array a floating look over the regular tile roof common to the rest of the
>rooftop.  Water drained into rain gutter at edge of eave underneath array.
>Water drained over AND under last two rows of barrel tile into gutter
>solving aesthetic issue.  Cooling air flow was still sufficient under array.
>
>Peter D.
>
>-----Original Message-----
>From: re-wrenches-bounces at lists.re-wrenches.org
>[mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of William
>Miller
>Sent: Wednesday, October 29, 2008 9:55 PM
>To: RE-wrenches
>Subject: Re: [RE-wrenches] Sharp racking on cement roof tiles
>
>Max:
>
>We had a client who, on a barrel tile roof,  insisted on removing tiles from
>under the array but wanted to keep tiles below the array.  There was no good
>way to divert water from under the lower tiles.  The roofer first tried
>using some roll roof that cracked and then used lead flashing.  There was
>still a mosquito pond where the water pooled.  Also, the "built in"
>look creates cooling flow restrictions.  We eventually gave up on the built
>in look.
>
>Wm
>
>
>At 08:13 PM 10/29/2008, you wrote:
> >Daryl, the best way to deal with it is to take the tiles off under the
> >array. This will give the system a lower profile and a "built in" look.
> >The other choice is to drill through the tile to get into the rafters.
> >I've put a system in the Cayman Islands and you want to make sure you
> >do it according to spec and then some when you have the potential for
> >hurricane class winds.....
> >Max Balchowsky
> >Design Engineer
> >Empire Solar Solutions
> >562-244-7068
>
>
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