Screed movement joints

[Russell griffiths]

Probably one for @nod 

im having a traditional sand and cement screed laid 75mm thick, I’m looking at incorporating movement joints at doorways and the junction of a corridor and the main room. 

 

Do i I just let them do a dry type joint and separate two bits of screed by cutting with the side of the trowel. 

 

Or fit a plastic type movement joint. 

 

Finished floor will will probably be tiles and I would follow this join into the tiled finish. 

 

Joints s will be hidden under door closed positions. 

[nod]

Hi Russ 

 

We use a fluted plastic strip 

6 mil x 150

Then cut it off afterwards 

[Russell griffiths]

Cheers @nod any idea on make. 

[dpmiller]

our guys used a foam strip with a selfadhesive base, and that was set to *just* be submerged under the flowscreed.

[Nickfromwales]

8 hours ago, nod said:

Hi Russ 

 

We use a fluted plastic strip 

6 mil x 150

Then cut it off afterwards 

I always asked my screeder to go over slightly sunken strips and go dig them out later. Leaves him plenty of open m2 to get a 10' or 12' straight edge in when screeding. TBH, he does that and still manages to flick the end of the trowel in at either end of the strip so we can locate the stop / start points easily when tiling.

8 hours ago, Russell griffiths said:

Joints will be hidden under door closed positions. 

Which makes it easy to locate them afterwards.

[nod]

8 hours ago, Russell griffiths said:

Cheers @nod any idea on make. 

I use Fluteplas 

We cut a sheet into 200 mil strip

 Just cut them off flush and leave 75 mil in the screed Once the screed has set