hi guys,
im about to render my garage wall and im wondering the best way to go about it.
i have in the past worked with a plasterer however this was short term work. when doing patches we used poly bond, so the first thing im going to ask is
will a wall that is going to be rendered for the first time need some sort of poly bond to stop the wall absorbing the moister outa the sand cement mix to quickly, if so what is it called and what amount should be added to the mix.
what type of sand cement mix should be used for the base coat ie 2/1 -3/1 etc
weather proofing is important what can be used to do this, someone said use something that might be called sbr, is this mixed into the cement mix to waterproof once it has dried. weather proofin needed as the single skin garage wall leaks in water through pointing and brick absorbancy.
scratch coat, i presume the scratch coat is a thin layer of sand cement mix, once on the wal..l would a saw tooth edge of a trowel do or is scratch coat needed to be deeper than what the jagged trowel can do(diy plastic doo doo never used never wanted)
top coat, i think smooth coat may look a bit to bold so how can i acheive that stippled bumpy type finnishing coat( i dont want to buy expensive tooling for it not to be used again as im not plastering or rendering anything else its a one of on my own garage wall)
terraline?? i think it is called
im considering maybe terraline finnish but as im not a regular at the builders yard and the depots being as they are up here in gtr manchester tehy nail yer boots on. can terraline be bought for less that £25.00 for a bag that cover 1mtr2
last of all the wall has some moss, and im lazy will render mix stick if there moss on the wall or do i need to treat it first, i have algon which kills moss but i can be botheres scrubbin it afterwards will live and dead remnents need to be removed first.
cheers
terry
im about to render my garage wall and im wondering the best way to go about it.
i have in the past worked with a plasterer however this was short term work. when doing patches we used poly bond, so the first thing im going to ask is
will a wall that is going to be rendered for the first time need some sort of poly bond to stop the wall absorbing the moister outa the sand cement mix to quickly, if so what is it called and what amount should be added to the mix.
what type of sand cement mix should be used for the base coat ie 2/1 -3/1 etc
weather proofing is important what can be used to do this, someone said use something that might be called sbr, is this mixed into the cement mix to waterproof once it has dried. weather proofin needed as the single skin garage wall leaks in water through pointing and brick absorbancy.
scratch coat, i presume the scratch coat is a thin layer of sand cement mix, once on the wal..l would a saw tooth edge of a trowel do or is scratch coat needed to be deeper than what the jagged trowel can do(diy plastic doo doo never used never wanted)
top coat, i think smooth coat may look a bit to bold so how can i acheive that stippled bumpy type finnishing coat( i dont want to buy expensive tooling for it not to be used again as im not plastering or rendering anything else its a one of on my own garage wall)
terraline?? i think it is called
im considering maybe terraline finnish but as im not a regular at the builders yard and the depots being as they are up here in gtr manchester tehy nail yer boots on. can terraline be bought for less that £25.00 for a bag that cover 1mtr2
last of all the wall has some moss, and im lazy will render mix stick if there moss on the wall or do i need to treat it first, i have algon which kills moss but i can be botheres scrubbin it afterwards will live and dead remnents need to be removed first.
cheers
terry