The Brew Cabin

Posted: **Tue Apr 23, 2019 11:27 am**

Hi, thanks in advance for any help anyone can provide.

I'm looking to lay some slate patio slabs (25-30mm). I've looked at the advise of using a type IV mortar mix. Should I use building sand or sharp sand?

Posted: **Tue Apr 23, 2019 4:34 pm**

always sharp IE grit sand for flags or slabs
and I personally would use 5:1 with 100ml of SBR in every mix and prime the back of the slate flags
cheers LLL

Posted: **Wed Apr 24, 2019 9:45 am**

Just posted this link in a neighbouring thread - Laying Slate Paving

The Brew Cabin

Correct mortar mix for slate slabs - Correct mortar mix for slate slabs