Putting wood on round turret

[Jeff and Jennifer Cook]

In our new home construction we are having a round turret. The framer said
he has never covered one and thinks it cannot be round since he cannot bent
the OSB. If this is not the case can 1/4" plywood be used and several
sheets applied to give the desired thickness? If so should glue be applied
after each sheet?
If anyone has some answers let me know.
Thanks
Jeff

[Bob Morrison]

In a previous post Jeff and Jennifer Cook wrote...

Post by Jeff and Jennifer Cook
In our new home construction we are having a round turret. The framer said
he has never covered one and thinks it cannot be round since he cannot bent
the OSB. If this is not the case can 1/4" plywood be used and several
sheets applied to give the desired thickness? If so should glue be applied
after each sheet?

Jeff:

The use of field laminated sheathing is common in this situation. At
least 2 layers of 1/4" plywood, or I've even seen 3-4 layers of a 1/8"
single veneer. The method will depend a little on the diameter of the
turret.

[The Carters]

I second Bob's comment. Note that he said plywood, not OSB. Also, If the
turret radius/diameter is tight, consider setting your circular saw for a
1/8" cut (in 1/4" plywood) and cutting a series of kerfs in the plywood,
parallel to the underlying studs. It helps the plywood bend.

Greg

Post by Bob Morrison
In a previous post Jeff and Jennifer Cook wrote...

Post by Jeff and Jennifer Cook
In our new home construction we are having a round turret. The framer said
he has never covered one and thinks it cannot be round since he cannot bent
the OSB. If this is not the case can 1/4" plywood be used and several
sheets applied to give the desired thickness? If so should glue be applied
after each sheet?

The use of field laminated sheathing is common in this situation. At
least 2 layers of 1/4" plywood, or I've even seen 3-4 layers of a 1/8"
single veneer. The method will depend a little on the diameter of the
turret.
--
Bob Morrison, PE, SE
R L Morrison Engineering Co
Structural & Civil Engineering
Poulsbo WA

[Joe]

Also, if you stand the sheets up, they will bend around a smaller radius
than if the sheets are laying down.

[3D Peruna <""w\"@h%%%&&&&&">]

Post by Jeff and Jennifer Cook
In our new home construction we are having a round turret. The framer said
he has never covered one and thinks it cannot be round since he cannot bent
the OSB. If this is not the case can 1/4" plywood be used and several
sheets applied to give the desired thickness? If so should glue be applied
after each sheet?
If anyone has some answers let me know.
Thanks
Jeff

Makes me question the builder...he bid the drawings, right? You'd think
he would have thought about how to build it when he bid it...

[BP]

Thin plywood - Yes. Lap joints at least 32" apart. The tighter the radius,
the thinner the plywood will need to be to "make the turn". Total thickness
= the rest of the flat sheathing.
Glue - Yes.

There is also a product called "bending plywood" or some such name. Never
used it. Mostly used for fabricating built-up trim.

Post by Jeff and Jennifer Cook
In our new home construction we are having a round turret. The framer said
he has never covered one and thinks it cannot be round since he cannot bent
the OSB. If this is not the case can 1/4" plywood be used and several
sheets applied to give the desired thickness? If so should glue be applied
after each sheet?
If anyone has some answers let me know.
Thanks
Jeff

[D. A. Hicks]

I seem to know a few shuttering chippies that manage to naturally curve 20mm
Ply ( before the pour ) LOL

David

[Flyingmonk]

Lap joints at least 32" apart>>

isn't the sheet only 48" wide? How can the next lap be 32"?

[BP]

Round these parts we put the sheets up long-wise. Just like it says in the
instructions.

Post by Flyingmonk

Lap joints at least 32" apart>>

isn't the sheet only 48" wide? How can the next lap be 32"?