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Home > Archive > Building and Construction > June 2006 > Cedar Roof: 24 inch shakes but 7.5 inch Spaced Sheathing Boards
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Cedar Roof: 24 inch shakes but 7.5 inch Spaced Sheathing Boards
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| Don Enderton 2006-06-17, 1:25 pm |
| My contractor will replace my old heavy cedar shake roof with a new one this
summer.
He will use 24 inch heavy (3/4 inch minimum thickness) shakes.
I notice, looking at the underside of the roof in my garage, the existing
spaced sheathing boards, which he intends to use, are just under 7.5 inches
apart, center to center.
The Cedar Shake and Shingle Bureau construction manual says the spacing of
these strips or boards should equal the intended weather exposure of the
shakes.
My contractor intends to install with 10 inches of exposure, not the 7. 5
inches at which the sheathing boards are spaced.
When I asked how he could do that, he explained he would just vary the
locations of the nails depending upon the location of the available
sheathing board for nailing for each shake.
Is that a normal or acceptable practice? Will it work?
Or should he plan on 7.5 inch exposure, to match the existing spacing of the
boards (at some additional cost, because it will take more shakes to cover
at that smaller spacing)?
(I know he could use 18 inch shakes and 7.5 inch exposure, but he doesn't
stock, or order, or use, 18 inch shakes.)
- Don, a clueless homeowner
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| Sounds like he is using a good shingle. Don't make something out
of nothing. The spacing you are so concerned about is just
MINIMUM spacing. We around here have always spaced 1 x 4's with
an 8d nail (2-1/2") for any kind of wood shingle. Sounds like you
are getting a good roof. Around here you can't get the heavy
shakes like that for love nor money any more, just the cheap ones
that split if you look at them crooked. Grab it!!
"Don Enderton" <Enderton@nosuchaddress.duh> wrote in
message
news:RfWkg.34806$mF2.27014@bgtnsc04-news.ops.worldnet.att.net
> My contractor will replace my old heavy cedar shake roof
> with a new one this summer.
>
> He will use 24 inch heavy (3/4 inch minimum thickness)
> shakes.
> I notice, looking at the underside of the roof in my
> garage, the existing spaced sheathing boards, which he
> intends to use, are just under 7.5 inches apart, center
> to center.
> The Cedar Shake and Shingle Bureau construction manual
> says the spacing of these strips or boards should equal
> the intended weather exposure of the shakes.
>
> My contractor intends to install with 10 inches of
> exposure, not the 7. 5 inches at which the sheathing
> boards are spaced.
> When I asked how he could do that, he explained he would
> just vary the locations of the nails depending upon the
> location of the available sheathing board for nailing for
> each shake.
> Is that a normal or acceptable practice? Will it work?
>
> Or should he plan on 7.5 inch exposure, to match the
> existing spacing of the boards (at some additional cost,
> because it will take more shakes to cover at that smaller
> spacing)?
> (I know he could use 18 inch shakes and 7.5 inch
> exposure, but he doesn't stock, or order, or use, 18 inch
> shakes.)
> - Don, a clueless homeowner
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| Correction. Make that MAXIMUM spacing. Getting old. 
"Glenn" <pilcheg@kc.rr.com> wrote in message
news:d7Xkg.7209$Z%1.3751@tornado.rdc-kc.rr.com[color=darkred]
> Sounds like he is using a good shingle. Don't make
> something out of nothing. The spacing you are so
> concerned about is just MINIMUM spacing. We around here
> have always spaced 1 x 4's with an 8d nail (2-1/2") for
> any kind of wood shingle. Sounds like you are getting a
> good roof. Around here you can't get the heavy shakes
> like that for love nor money any more, just the cheap
> ones that split if you look at them crooked. Grab it!!
>
> "Don Enderton" <Enderton@nosuchaddress.duh> wrote in
> message
> news:RfWkg.34806$mF2.27014@bgtnsc04-news.ops.worldnet.att.net
| |
| Don Enderton 2006-06-18, 1:25 pm |
| Glenn, thanks for the reassurance. I am in the central valley in California
and the shakes come from B.C., Canada.
You say "Around here you can't get the heavy shakes..." Where is "around
here" (where you are)?
- Don
"Glenn" <pilcheg@kc.rr.com> wrote in message
news:MYXkg.3313$6C.1152@tornado.rdc-kc.rr.com...[color=darkred]
> Correction. Make that MAXIMUM spacing. Getting old.
>
> "Glenn" <pilcheg@kc.rr.com> wrote in message
> news:d7Xkg.7209$Z%1.3751@tornado.rdc-kc.rr.com
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