Hi Guys
DIYer here attempting to re render my house next week and just want to get a few things straight in my mind. I've only ever rendered internally (all be it with nice smooth results) with mortar mix from B&Q!! Apologies if this is the same old question being posted here.
My house is a red brick victorian house in Cardiff. Just wanted to confirm what the best mix would be.
From what i've read for the scratch coat:
4-1 sharp sand to cement + plasticiser
and top coat
and 5-1-1 sharp sand-cement-hydra lime + plastirciser
I don't think i'll need any PVA as there appears to be plenty of key. I'll be using stainless steel beading on corners and around windows, doors etc.
I've also estimated for 60m2 area: sharp sand 1.6 ton, 500kg cement and 100kg of lime
Now I know a lot of the mix has to do with personal preference but does that sound about right for my house and location....i.e. lots of rain!!
The render I have been taking off has been a real hotch potch....some of the older render looks very sandy and just crumbles off, the newer stuff that looks like its been done over old brick upped windows looks more like just cement and has been a real nightmare to remove (but presumably a far sounder render?)
Lastly have any of you guys tried pre mixed renders? Are they any good and if so do you know of a decent product/stockist?
Thanks guys any thoughts/tips that would make life easier would be a great help.
DIYer here attempting to re render my house next week and just want to get a few things straight in my mind. I've only ever rendered internally (all be it with nice smooth results) with mortar mix from B&Q!! Apologies if this is the same old question being posted here.
My house is a red brick victorian house in Cardiff. Just wanted to confirm what the best mix would be.
From what i've read for the scratch coat:
4-1 sharp sand to cement + plasticiser
and top coat
and 5-1-1 sharp sand-cement-hydra lime + plastirciser
I don't think i'll need any PVA as there appears to be plenty of key. I'll be using stainless steel beading on corners and around windows, doors etc.
I've also estimated for 60m2 area: sharp sand 1.6 ton, 500kg cement and 100kg of lime
Now I know a lot of the mix has to do with personal preference but does that sound about right for my house and location....i.e. lots of rain!!
The render I have been taking off has been a real hotch potch....some of the older render looks very sandy and just crumbles off, the newer stuff that looks like its been done over old brick upped windows looks more like just cement and has been a real nightmare to remove (but presumably a far sounder render?)
Lastly have any of you guys tried pre mixed renders? Are they any good and if so do you know of a decent product/stockist?
Thanks guys any thoughts/tips that would make life easier would be a great help.