Furring strips for OSB boards on spaced paneling?

[Tornhuset]

Hi expert panel!

I will be installing vertical OSB on furring strips (see image), and then gluing/shooting 4mm plywood onto the OSB. The furring strips are about 450mm on center. Should I add blocking at the long joints which will partially lack support? Or at least insert a small piece of furring under each joint so that the panels are "screwed together" with a distance of a bit over 200 instead of 450? Insert two pieces so the distance becomes 150? (What is the recommended distance for screwing OSB along the edges?)

I hope you understand, grateful for your opinions!

 

[Marine lavale]

It is recommended to "kottla" or insert a small piece of sparse panel at the long joints to ensure that the boards are properly anchored and to avoid movement or cracks in the material. The distance of 150 mm is a good measure for screwing the OSB boards together, but it can be difficult to achieve the exact spacing on the sparse panel. The most important thing is that the screws are placed at a distance that provides sufficient support for the OSB boards.

 

[Tornhuset]

It is recommended to insert or shim a small piece of glespanel at the long joints to ensure that the boards are properly anchored and to avoid movement or cracks in the material. The distance of 150 mm is a good measurement for screwing together the OSB boards, but it can be difficult to achieve the exact distance on the glespanel. The most important thing is that the screws are placed at a distance that provides enough support for the OSB boards.

Thanks for the response! Do you think these small pieces must lie on the roof trusses so that everything has backing against them, or is it sufficient for the boards to be connected with these so that they don’t move relative to each other? It is not certain that the board joints will be exactly over the roof trusses.