Strong Thin screed

[Russell]

My garage keeps getting water under the door.
I want to bring it up a bit 5-15mm and feather it off to nothing either end. Can anyone recommend something to use?
Is normal self leveling compound good enough or would some sort of 2 part resin type screed be better?
There is nothing particularly heavy going in and out of the garage, car engine on a crane or micro digger at most.

 

[doobin]

Two part resin would give the best and strongest finish, you can even get them coloured to really spruce it up. At 15mm max and a garage sized area it shouldn't be too costly.

You say nothing particularly heavy- a car engine on a crane is quite a point loading. I'd want the resin personally.

 

[Russell]

ok thanks ill have a look

 

[V8Druid]

think this was discussed elsewhere recently, but for a repair .... can't recall the name of the product suggested but is a two pack and is good tish

 

[Lancs Lad]

W

think this was discussed elsewhere recently, but for a repair .... can't recall the name of the product suggested but is a two pack and is good tish

Watco two pack for repair . We used some years ago and ran sideloaders on solid rubbers over it for years. Rock solid stuff.

Normal screed get one with highest newton meter strength you can and one that is suitable as finished floor. A lot aren't.

 

[V8Druid]

W

Watco two pack for repair . We used some years ago and ran sideloaders on solid rubbers over it for years. Rock solid stuff.

Normal screed get one with highest newton meter strength you can and one that is suitable as finished floor. A lot aren't.

that's the guys ... do repair and full screed stuff from memory

 

[Brendan]

Can you fit a linear drain at the threshold?

 

[Russell]

I have fitted a channel along the front but I think the floor inside goes down a little bit before going up about 3 inch at the back of the garage.
Ive got 2-3 litres of roofin resin, im tempted to stick a bit of poly filler in that and see what it does.

 

[doobin]

I have fitted a channel along the front but I think the floor inside goes down a little bit before going up about 3 inch at the back of the garage.
Ive got 2-3 litres of roofin resin, im tempted to stick a bit of poly filler in that and see what it does.

Sounds like a total waste of time. Don’t cheap out, use the right gear for the job.

Poly filler is totally the wrong product no matter what you add to it.

 

[TiltyShaun]

Depending on what sort of garage door you have. Possibly might be an idea to put a piece of D section steel behind the door to act as a stop.
When we built industrial units. We used to put the section under the roller shutter door to prevent water blowing under the door.

 

[Russell]

Im finally getting to this, would it be best to self leveling screed then resin paint or is there a high build resin screed?
Last time i spoke to self leveling screed tech department, Larsen, they said it dosent like damp.

 

[Brendan]

Im finally getting to this, would it be best to self leveling screed then resin paint or is there a high build resin screed?

Proper load rated resin/concrete repair is expensive to the point it could be cheaper to rip out the concrete and start a fresh. Have used polycote for similar stuff but is very expensive.
Could possibly do grano, cement, neat SBR and don't add any water. No idea if it would last but in theory should be fairly strong

 

[Russell]

by grano do you mean a screed consisting of sharp sand and cement?
Is 20mm the thinnest you can go with that?

 

[DaveDCB]

rip it up and £400 worth of concrete with a membrane under it.. done!

 

[Lancs Lad]

Im finally getting to this, would it be best to self leveling screed then resin paint or is there a high build resin screed?
Last time i spoke to self leveling screed tech department, Larsen, they said it dosent like damp.

Couple things to bear in mind.
You'll need to ensure subfloor is decent, any oil spills etc could mean your screed just peels up.
15mm isn't very thick and you'll need a feather screed as a lot don't go down below 5-10mm.
Please ensure you get one suitable for finished floors etc

as Dave says might be less hassle to get level right with a fresh start

If your determined ring Ardex on Monday they'll see you right

 

[Russell]

ok thanks