Installing insulated boards on tall wall

[guvnur.jake]

I’m planning to insulate one of the external walls in a bedroom using insulated plasterboard. The wall height is around 2.8 m, which is taller than the standard 2.4 m boards I can get. I know it’s generally best to avoid horizontal joins where possible, but I can’t find any insulated boards in longer lengths to cover the full height in one go.
What’s the recommended way to install standard length insulated boards on a taller wall? is there a preferred method for dealing with that gap at the top or bottom, or any tips to make the join more solid and less noticeable?

 

[RigidChrix]

Run them vertically if you can, it puts the join on the side instead of horizontal across the wall. But if you have to go horizontal, stagger the joints and put the join at eye level or higher so it's less noticeable

 

[realbenny5]

I’m planning to insulate one of the external walls in a bedroom using insulated plasterboard. The wall height is around 2.8 m, which is taller than the standard 2.4 m boards I can get. I know it’s generally best to avoid horizontal joins where possible, but I can’t find any insulated boards in longer lengths to cover the full height in one go.
What’s the recommended way to install standard length insulated boards on a taller wall? is there a preferred method for dealing with that gap at the top or bottom, or any tips to make the join more solid and less noticeable?

Run the boards vertically and stagger the horizontal joints if you're doing multiple walls but for a single wall, put the full board at the bottom and the cut piece at the top near the ceiling, its easier to finish and less noticeable up there.
also, use adhesive dabs on the insulation side and mechanical fixings through to the wall studs or masonry

 

[thelinteam]

Just a lil tip, staggering the joints if you're doing multiple walls makes it stronger and less obvious.

Have you done it yet?

 

[Alan]

@guvnur.jake The usual approach is exactly what @realbenny5 mentioned, full board at the bottom and the cut section at the top near the ceiling where it’s least visible and easier to finish cleanly. Make sure the joint lands on solid backing or add a timber noggin so the seam is well supported and doesn’t crack later.

 

[latoureiffel]

I’d just put a full board at the bottom and the cut piece up top near the ceiling. Make sure the seam hits a stud or something solid so it doesn’t crack. Works fine for me.

 

[Jackson]

I’d just put a full board at the bottom and the cut piece up top near the ceiling. Make sure the seam hits a stud or something solid so it doesn’t crack. Works fine for me.

To add to this, if you’re doing multiple walls, stagger any horizontal joints to make them stronger and less obvious. Using adhesive dabs plus mechanical fixings will keep the boards firmly in place.

 

[Alan]

Interesting comments @Jackthestopper @latoureiffel. Glad to see the conversation going until OP here resolves it.