What type of sand?

[greasedmonkey]

A friend of mine is having building troubles (all in another post) but she has had the correct procedure outlined by an expert and this states to use building sand as a blinding layer between hardcore and damp proof membrane when doing a floor. I recently build a conservatory and I used sharp sand for this as I was told it would be ok and I was obviously buying a large amount anyway. But after seeing it stated that this has to be building sand I am a little concerned. Will this compromise the damp proof membrane in any way? It's a bit late now as the floor is finished, but should I expect damp problems in the future?

 

[limerockconstruction]

I'd rather have seen holm sand but wouldn't be worried if I were you. You can sleep at night again...

 

[greasedmonkey]

Thanks for the reassurance. However you leave me with another question, what is holm sand? I am not a builder and have never heard of it.

And as for sleeping at night, I should be so lucky! My daughter is teething.

 

[limerockconstruction]

again, don't worry too much, holm sand in the south west usually relates to a softer more rounded building sand, often used in bricklaying etc. Sharper sand is better for screeding etc.....

 

[greasedmonkey]

Ok, thanks. Not worried any more, you already put my mind at rest, just curious as to what it was. His list actually stated "soft building sand" so I guess it's the same thing. Learn something new every day.

 

[limerockconstruction]

We all do mate....

 

[Johnmelad]

We all do mate....

Cobblers, when my son was a teenager he knew everything about everything.

 

[limerockconstruction]

I reckon we did too