LumberJocks

24" OC question

  • Advertise with us

« back to Focus on the Workspace forum

Forum topic by jeff posted 04-12-2011 01:13 AM 1944 views 0 times favorited 11 replies Add to Favorites Watch
View jeff's profile

jeff

988 posts in 2926 days


04-12-2011 01:13 AM

im in the process of replacing the roof on my shop,lots of water damage from previous owner neglect.would 24” OC be ok with 2×6 rafters and 1/2” ply?...the shop is 12×14,8ft high,cement block walls.im using a 4/12 slope/run,ceiling will be vaulted,my 2×8 ridge board is in place.thx. jeff

-- Jeff,Tucson,Az.


11 replies so far

View RONFINCH's profile

RONFINCH

143 posts in 2385 days


#1 posted 04-12-2011 01:36 AM

24” OC is fine, but I’d be a little bit concerned with only 1/2 inch ply over that span, I think 5/8 would be a lot better.

View jeff's profile

jeff

988 posts in 2926 days


#2 posted 04-12-2011 01:53 AM

RONFINCH, i have considered going thicker with the ply.its not to much more $$...also i just thought about my insulation,how would i insulate a 24” OC cavity between the 2×6’s?...thx.

-- Jeff,Tucson,Az.

View RONFINCH's profile

RONFINCH

143 posts in 2385 days


#3 posted 04-12-2011 02:12 AM

Now I’m a little confused. You are replacing the roof and then sheeting the vaulted ceiling with 1/2 inch ply? If you are putting 5/8 on the roof, then 1/2 ply as sheeting on the ceiling should be fine. 24” insulation is available from most home improvement stores.

View jeff's profile

jeff

988 posts in 2926 days


#4 posted 04-12-2011 02:40 AM

RONFINCH, sorry about the confusion.im not sheeting the ceiling.the original owner used 1/2” T-G on top for the roof(no ply) with rolled roofing material ect.you could see the T-G from the inside of the shop sitting on top of the 2×4 rafters he used.by the way he used 2×4 with 24” OC.scary when i had to get up there to start taking off the roof.anyways he never insulated the roof which is what i want to do so i can use it more.i saved much of the T-G which was tedious to say the least so i can use it inside the shop on the ceiling…its good to know home improvement stores do carry 24” insulation…actually my shop is just about a total redo…im not framing the cement block walls,i will be using cleats ect. to hang my shop cabinets,plus i will use roll around workbench’s and place other tools ect under any base cabinets i make..i will need to upgrade the electric(my brother in law is a former electrician) and add my doors.i will probably go with a small window ac for the summers here in Tucson AZ…just so everybody knows im a newbie…thx again…

-- Jeff,Tucson,Az.

View john's profile

john

2362 posts in 3843 days


#5 posted 04-12-2011 02:48 AM

Half inch ply is okay with 24” oc but make sure you use plywood clips . They are cheap and help break the span :-)
http://www.google.ca/images?rlz=1T4GGLL_enCA350CA350&q=plywood+clip&um=1&ie=UTF-8&source=og&sa=N&hl=en&tab=wi&biw=779&bih=425

-- John in Belgrave (Website) http://www.extremebirdhouse.com , https://www.facebook.com/groups/extremebirdhouses/

View jeff's profile

jeff

988 posts in 2926 days


#6 posted 04-12-2011 03:18 AM

John…will do and as im writing this i just remenbered on our newer poarch we had redone a few yrs ago,the contracters used plywood clips,i can see them through the 2x’s…thx…

-- Jeff,Tucson,Az.

View bblogna's profile

bblogna

26 posts in 2125 days


#7 posted 04-12-2011 03:43 AM

24 oc 5/8 osb board and the ply or “H” clips is how we build all of our roofs

View Les 's profile

Les

201 posts in 2151 days


#8 posted 04-12-2011 01:57 PM

I am sure 24” centers will be ok, but on a 12 by 14 shop you are only looking at 3 or 4 more rafters on each side. I would go to 16” centers. It’s not that much more for the added strength. Just my 2 cents

Les

-- Stay busy....Stay young

View Gene Howe's profile

Gene Howe

8239 posts in 2890 days


#9 posted 04-12-2011 02:38 PM

Les’ idea is a good one. But, I’d save the money to enlarge the shop. :-)

-- Gene 'The true soldier fights not because he hates what is in front of him, but because he loves what is behind him.' G. K. Chesterton

View john's profile

john

2362 posts in 3843 days


#10 posted 04-12-2011 02:51 PM

In Canada 1/2” plywood with clips is standard on roofs with 24” O.C

-- John in Belgrave (Website) http://www.extremebirdhouse.com , https://www.facebook.com/groups/extremebirdhouses/

View jeff's profile

jeff

988 posts in 2926 days


#11 posted 04-12-2011 06:12 PM

John and Les thx.i haven’t purchased the ply yet and will probably decide last minute on rafter spacing.today i will do my bird mouth cuts to start,already have a pattern rafter ready to go…Gene,i now have guilt after your enlarge the shop comment LOL…believe me i have tormented myself over the consideration of going bigger and it will happen in the near future…thx …

-- Jeff,Tucson,Az.

Have your say...

You must be signed in to reply.

DISCLAIMER: Any posts on LJ are posted by individuals acting in their own right and do not necessarily reflect the views of LJ. LJ will not be held liable for the actions of any user.

Latest Projects | Latest Blog Entries | Latest Forum Topics

HomeRefurbers.com