Doorway expansion joint.

[ianR1]

I am having my sand and cement screed done in two weeks so just now finishing off getting everything ready.

 

I read a lot on here about fitting expansion joints in doorways but i can't seem to find the product everyone is using, could someone please point me in the right direction on what i need to buy so I can get it ticked off my list !

[markc]

Not an expansion joint, doorways are crack points.

the screed will shrink and crack, while wet cut a slit at least half the depth of the screed across the door threshold. This causes the crack to form where you want it.

[nod]

This Has been asked before I normally buy a 10 mil 2400x1200 sheet of fluted plastic 

Same as the 5 mil stuff used for floor protection 

Rip it into 100 mill strips Put on in each doorway or opening Cut it off with a Stanley knife the following day 

[ianR1]

Super job, thanks for the replies.

[ianR1]

3 hours ago, nod said:

This Has been asked before I normally buy a 10 mil 2400x1200 sheet of fluted plastic 

Same as the 5 mil stuff used for floor protection 

Rip it into 100 mill strips Put on in each doorway or opening Cut it off with a Stanley knife the following day 

 

Would this just be pushed down to sit on top of the heating pipes or would i better to slot it to sit over them ?

[dpmiller]

Our screed installers had a fancy foam strip with a self-adhesive foot, easy to notch over pipes etc.

[nod]

3 hours ago, ianR1 said:

 

Would this just be pushed down to sit on top of the heating pipes or would i better to slot it to sit over them ?

Screed through the doorway Then cut it back with a trowel Push the strip against 

Only takes a minute per strip 

We normally put our tile expansion over it