Ruling thin coat systems???

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zombie

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Might sound like a stupid question but do you bother trying to rule base coats on thin coat systems like weatherby etc when going onto brick/blockwork?

Only do a few small stuff but been shown to apply 1st coat scrape back with notched trowel using this to some effect as a guide as in going back to brick with it so a uniform depth.

Apply mesh lightly pressed but so so doesn't sink and loose its shape bed in and top.

At no point am I ruling with a derby or straight edge, tried but don't find enough depth and tears.

So best way ive found at mo is to rule vertical and then horizontal with speedskim then leave until going crusty, spngefloat,then jumbo car wash sponge up.

Return and bucket coat.

Do any of youse do them any different?

Thanks Zombie
 
Ive been asking much the same question today so i would be interested in what the general consensus is....................:RpS_thumbup:
 
Ive been asking much the same question today so i would be interested in what the general consensus is....................:RpS_thumbup:

To be honest Arti the handful that ive done have come out well and been pleased with them its just that it feels a bit wrong/ruff not using a straight edge at any point over render but it just seems impossible to me as once your mesh is on your only putting the equivalent of a heavy skimming coat on at best..

Have to say the plastic speedskims has been fantastic at flattening it down but im under no illusions that its not properly straighting up etc
 
why do some spreads sponge thin coats? edge and spatch me.

tbh bob I only songe them as there only little jobs so I have plenty of time and no on price just domestics also if I know im going to be leaving for a few wks before bucket coat I just feel it looks better otherwise I always get paranoid thinking customers going to think im ruff! lol
 
I've asked the same question over the past few years, I think I've tried every method but I always rule it at least take the high points.
 
Thin coat on insulation? I concentrate on getting the poly slabs as flat as I can then with a rasp get in even flatter. Once I have the board work flat then it is a notched trowel, lightly bed in the mesh then a light skim over flattened with a spat.

I usually finish with a sponge but only lightly rubbed up. Manufacturers don't like sponging.
 
Thin coat on insulation? I concentrate on getting the poly slabs as flat as I can then with a rasp get in even flatter. Once I have the board work flat then it is a notched trowel, lightly bed in the mesh then a light skim over flattened with a spat.

I usually finish with a sponge but only lightly rubbed up. Manufacturers don't like sponging.

Hi Rigsby,

Yeah thincoat but onto brick/block aposed to insulation boards etc.

Thanks zombie
 
Apply base coat and rule with serrated egde,gently bed mesh in,leave to firm up tight skim coat flaten with spat,easy peasy
 
Never done thin coat onto block or brick. I have gone onto old flat rendered walls. I pin the mesh back though on a refurb.
 
Just rule the base coat before we bed the mesh. I'm the same as @Rigsby I like to finish the base coat with a sponge depending on what material using.

Thanks Ciarany,

I think ive possibley been shown some bad habits here then as ive just been shown to chuck it on and then scrape back with the notched trowel using the notches if u like as a guide to keeping it same depth.

I don't think im putting enough depth on to be able to rule prior to mesh tbh!:RpS_scared:
 
They say don't use a sponge as it weakens the coat, but what ever works for you, doesn't matter as long as it's flat.
A rasp is a given as when they wrap insulation such as eps they twist and curl at the edges, which your not going to take out, and looks terrible if it catches the sun.
 
Never done thin coat onto block or brick. I have gone onto old flat rendered walls. I pin the mesh back though on a refurb.

tbh Rigsby I dint even know that you could use them in this way but been shown by a fela that does quite a lot like this but do you know when you just have nagging doubts it just seems to easy/straightforward to be right! lol

cant decide if im just trying to over complicate or if ive been shown some ruff ways if you catch my drift!
 
They say don't use a sponge as it weakens the coat, but what ever works for you, doesn't matter as long as it's flat.
A rasp is a given as when they wrap insulation such as eps they twist and curl at the edges, which your not going to take out, and looks terrible if it catches the sun.

Thanks Owls,

is it using the spongefloat they don't like as your adding water or the jumbo sponge/fine finish or both bud?

ps just going straight onto block and brick etc no boardwork
 
On brickwork i pull a tight coat over to cover mortar joints. Then 6mm and serrate. Tap mesh on. Let firm. Sometimes speedskim the mesh. Slurry. Spat and trowel finish. Prime and texture.
 
ps whats edge and spatch pal?
If its on blockwork or brick thats been hacked off i always use a straight edge , if its on insulation i just use 500mm spatula on it, thats using hp12 but ive been on jobs were the spreads sponge it and i just follow suite!
 
On brickwork i pull a tight coat over to cover mortar joints. Then 6mm and serrate. Tap mesh on. Let firm. Sometimes speedskim the mesh. Slurry. Spat and trowel finish. Prime and texture.

Thanks Dan,

Out of curiosity how far do you find a bag gives you roughly doing it that way over brick/block buddy?
 
If its on blockwork or brick thats been hacked off i always use a straight edge , if its on insulation i just use 500mm spatula on it, thats using hp12 but ive been on jobs were the spreads sponge it and i just follow suite!

thanks bob appreciated
 
If its on blockwork or brick thats been hacked off i always use a straight edge , if its on insulation i just use 500mm spatula on it, thats using hp12 but ive been on jobs were the spreads sponge it and i just follow suite!

How do you find HP12 on insulation?
 
They say don't use a sponge as it weakens the coat, but what ever works for you, doesn't matter as long as it's flat.
A rasp is a given as when they wrap insulation such as eps they twist and curl at the edges, which your not going to take out, and looks terrible if it catches the sun.

Theres a few houses by the merchants I use and when you go past at the right (or wrong) time every single board on the gable crowns in the middle. I always Wondered what had causes it. Most likely this?
 
Also ive notices a few houses where they base coat. Mesh. Leave it week. Top coat. Prime and texture. The chap at weber told us to do the base coat wet on wet?
 
Theres a few houses by the merchants I use and when you go past at the right (or wrong) time every single board on the gable crowns in the middle. I always Wondered what had causes it. Most likely this?

Hey Beddy

if it is 2 or more years old... it was probably the insulation boards they used (or the boards were not fixed right)....

there are sh*t loads of claims about with systems a few years old..... TBH - is is best not get into it on here...
 
Oh Dear......

was with a large SC yesterday, they stated that EWI specified systems (not an area that I am an expert on BTW) and products evolve very quickly.... what was spec'd and used 2 years ago is now out of date and not advised by many suppliers anymore....
 
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