ᐅ Garage Screed – How to Seal the Edge Gap?

This concerns a recently built garage. The floor screed was installed and decoupled from the wall using an insulating strip, as is common in residential construction. Now my question is, if the protruding insulating strip is cut off, there is a gap of about 1 cm (0.4 inches) between the screed and the wall. How is this gap usually sealed? I understand that in apartments this is not done because the gap is ultimately covered by baseboards.

However, in a garage, there are no baseboards, and furthermore, rain or snow can be brought into the garage, which could flow into this gap.

What is the standard procedure here?

Best regards
N

What type of final floor covering are you planning? It surely won’t just be left as screed, right...?

The plan was to simply seal it using that hardware store product for garage floors.

Sika Flex AT connection or 111 Stick & Seal.
There are also other manufacturers offering good PU sealants and adhesives, such as Ramsauer 320.

What is the common procedure? (as the initial question)
Answer:
Screeds in garages are installed as bonded constructions.
There is no need for perimeter joints! If a screed perimeter strip has actually been applied, simply remove it, clean the joint cavity (vacuum), and seal the perimeter joint, which does not serve any purpose in bonded screeds, with a cement-based filler or similar material.
Regards, KlaRa

KlaRa schrieb:

seal the perimeter joint, which has no function at all in bonded screeds,

I don’t fundamentally doubt that, but it surprises me.
As I understand it, a screed slab can expand, press against the walls, and cause damage. Why is this different in a garage compared to living spaces?