Floor - level enough?!

[CrawfW]

Laying engineered flooring in an old house, solid floors but seriously uneven.

How level do they need to be?

For example, on a 1800mm level i have a 4mm depression for 660mm around the middle. Is that the sort of thing that glue can tolerate?

Or SLC everything and everywhere?

Cheers

Crawf

 

[Doggit]

If the floor is basically okay, then you can use feather edge SLC in just the area of the dip. It needs to be able to go down to 1mm, or marked as suitable or feather edge

 

[HawkEye244]

Doggs, sorry for the semi-dumb question but is feather edge SLC a product or a method ??

 

[Doggit]

It's a product. There are a lot of SLC's that will only go down to say 3 or 5mm, but there are others (normally flexible ones), that you can get down to say about 1mm, and it'll still grip and hold. They're never a true feather edge (at least the ones I've used so far) but you can use them to fill a dip, where a standard one wouldn't handle it.