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re: Any tips for getting plywood sheets into attic?
Posted on 10/8/24 at 11:56 am to Weekend Warrior79
Posted on 10/8/24 at 11:56 am to Weekend Warrior79
Do you have a router table and can you cut a tongue and groove on each side? If not, cutting at a 45 with the short side laying on the top will decrease its flexing.
2
Posted on 10/8/24 at 3:32 pm to Wraytex
I am an old dumb coot.
I pushed the full sheets up one at a time between two 2x12 ceiling joists and rested the bottom edge of the plywood on the top of the ladder.
Went up in the attic and pulled them up from there.
After nailing, I used the black outdoor seam tape they sell in the deck department of Home Depot. About $20. a roll. Sealed all the plywood joints where they butt together.
Caulked what I could not tape.
Expandable foam around any wiring.
Then installed unfaced 9 inch R30 insulation
I pushed the full sheets up one at a time between two 2x12 ceiling joists and rested the bottom edge of the plywood on the top of the ladder.
Went up in the attic and pulled them up from there.
After nailing, I used the black outdoor seam tape they sell in the deck department of Home Depot. About $20. a roll. Sealed all the plywood joints where they butt together.
Caulked what I could not tape.
Expandable foam around any wiring.
Then installed unfaced 9 inch R30 insulation
Posted on 10/8/24 at 4:00 pm to Wraytex
quote:
cut a tongue and groove on each side
I get that
quote:
cutting at a 45 with the short side laying on the top
but not that. Wouldn't the next sheet need to be opposite on the edge?
Posted on 10/8/24 at 5:29 pm to indytiger
quote:
quote:
however you cut it make sure the edges are always on a stud
Do people actually not do this?
It would be a lot better if the plywood hit a joist. Kinda hard to hit a stud.
Posted on 10/8/24 at 6:45 pm to Tiger328
Rip the sheets to 2x8 as has been said.
If you’re just using this to store Christmas decorations you can get by with 1/2” plywood, not OSB.
If you plan on walking on the plywood you must go to at least 5/8” plywood, not OSB. 5/8 CDX will be fine.
If you’re just using this to store Christmas decorations you can get by with 1/2” plywood, not OSB.
If you plan on walking on the plywood you must go to at least 5/8” plywood, not OSB. 5/8 CDX will be fine.
Posted on 10/8/24 at 7:13 pm to meeple
quote:
stud
Ceiling joist.
Posted on 10/8/24 at 7:20 pm to Tiger328
How we did it...
Pulley tied to stringer, and remove attic door
Clearly a 2 man operation, but it worked well.. just keep a fan on the attic guy
As a solo venture, I'd rip the sheets to 24 or 36 inches and still use a pulley to hoist
Pulley tied to stringer, and remove attic door
Clearly a 2 man operation, but it worked well.. just keep a fan on the attic guy
As a solo venture, I'd rip the sheets to 24 or 36 inches and still use a pulley to hoist
Posted on 10/8/24 at 7:21 pm to Weekend Warrior79
quote:
Weekend Warrior
Name checks out........you're spot on!
Posted on 10/8/24 at 10:08 pm to indytiger
quote:
however you cut it make sure the edges are always on a stud
Do people actually not do this?
You don't deal with the general public much do you?
Posted on 10/9/24 at 8:42 am to 9rocket
What’s wrong with OSB?
Posted on 10/9/24 at 7:57 pm to Tiger328
Too much flex for me. Will sag over time.
Posted on 10/14/24 at 1:56 pm to Tiger328
Its more expensive but lowes used to sell either 5/8" or 3/4" tounge and groove osb that was 2' x 4'
The t&g helps span the joits without flexing.
The t&g helps span the joits without flexing.
Posted on 10/16/24 at 1:27 pm to StrikeIndicator
we did the same, lucky we were in a neighborhood what was building houses all over the place. Added 2x4's to make a big checker board added plywood and screwed them in. very sturdy.
Posted on 10/17/24 at 3:40 pm to meeple
Perpendicular to the joist.
Posted on 10/17/24 at 4:32 pm to Tiger328
quote:
just rip all the sheets to 36 inches instead of standard 48 inch.
Rip to 32 inches and use both pieces. Your ceiling joists are likely on 16" centers (unless it's an old house). You can run them perpendicular to the joists, but I wouldn't do that b/c your long seams should be on the joists.
Posted on 10/18/24 at 8:07 am to indytiger
quote:
quote:
however you cut it make sure the edges are always on a stud
Do people actually not do this?
If the OP had to ask this question, he probably needs that bit of info.
Posted on 10/18/24 at 1:52 pm to notbilly
You lose the strength of the plywood if you run it parallel to the joists. It should always run across the joists.
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