Paint peeling on outside of house

[Marcosteffano]

FBEEFC38-2451-4F30-904E-7498F127BF48-962-0000017889F9CFBA.jpeg. Uk rendering starts above the dpc.

It shows how to avoid damp travelling up the walls and paint peeling problems.as for mentioning the uk.how about you finding a picture of a rendered wall thats is above dpc in Thailand and give some positive input instead of sitting there eating lard sandwiches and pulling people's advice to bits.

[fatbob]

For starters you cannot get fired bricks here unless you import them from OS. I'll stick to my lard sanga's and watch people dig them selves out of holes...

[Barney]

deankham

Been a few days have you tried anything yet to rectify? Plenty of advice on here on why it may be damp but not much on how to fix.
Is the damp on the inside of the wall as well as exterior?

Which ever way you go and without stating the obvious you must find the source and stop the moisture before painting any thing. Its obvious that the moisture is no draining or drying in that area of the exterior walls.
Perhaps get the missus to dig some sample holes along the affected wall to the bottom of the slab to check the moisture content of the soil. Difficult with all the rain at present so maybe later.

Without seeing the house and also totally without fear of being ridiculed by UM members here is my personal solution.

Dig a shovel width trench along the entire affected wall to the bottom of the slab. If you have down pipes from the roof that go underground dig the trench to the downpipe.
Paint the concrete with waterproofing paint.
Lay an agricultural pipe ( one with small holes and wrapped in cloth ) available from the hardware. Connect this into the underground down pipe system. Make sure the level drains in that direction.
Cover with blue metal rocks 7 or 10mm size not to the top.
Cover the rocks with your soil and grass.

Bobs your uncle.

[Marcosteffano]

deankham

Been a few days have you tried anything yet to rectify? Plenty of advice on here on why it may be damp but not much on how to fix.
Is the damp on the inside of the wall as well as exterior?

Which ever way you go and without stating the obvious you must find the source and stop the moisture before painting any thing. Its obvious that the moisture is no draining or drying in that area of the exterior walls.
Perhaps get the missus to dig some sample holes along the affected wall to the bottom of the slab to check the moisture content of the soil. Difficult with all the rain at present so maybe later.

Without seeing the house and also totally without fear of being ridiculed by UM members here is my personal solution.

Dig a shovel width trench along the entire affected wall to the bottom of the slab. If you have down pipes from the roof that go underground dig the trench to the downpipe.
Paint the concrete with waterproofing paint.
Lay an agricultural pipe ( one with small holes and wrapped in cloth ) available from the hardware. Connect this into the underground down pipe system. Make sure the level drains in that direction.
Cover with blue metal rocks 7 or 10mm size not to the top.
Cover the rocks with your soil and grass.

Bobs your uncle.

yes Barney first find the source of the problem,I think your idea is alone the line of a French drain

[fatbob]

deankham

Been a few days have you tried anything yet to rectify? Plenty of advice on here on why it may be damp but not much on how to fix.
Is the damp on the inside of the wall as well as exterior?

Which ever way you go and without stating the obvious you must find the source and stop the moisture before painting any thing. Its obvious that the moisture is no draining or drying in that area of the exterior walls.
Perhaps get the missus to dig some sample holes along the affected wall to the bottom of the slab to check the moisture content of the soil. Difficult with all the rain at present so maybe later.

Without seeing the house and also totally without fear of being ridiculed by UM members here is my personal solution.

Dig a shovel width trench along the entire affected wall to the bottom of the slab. If you have down pipes from the roof that go underground dig the trench to the downpipe.
Paint the concrete with waterproofing paint.
Lay an agricultural pipe ( one with small holes and wrapped in cloth ) available from the hardware. Connect this into the underground down pipe system. Make sure the level drains in that direction.
Cover with blue metal rocks 7 or 10mm size not to the top.
Cover the rocks with your soil and grass.

Bobs your uncle.

Haven't met Bob, but rising damp is through moisture, your method will remove water but will have no effect on moisture, therefore no effect on the rising damp problem, concrete being porous like a sponge will suck it up, the only prevention is a DPC for blockwork walls, plastic under the slab and beams and a waterproof additive in your render, then you are a chance, 99.9% of Thai houses have rising damp, look at the old estates where the walls are mouldy and black.

[the-monk]

{quote} without fear of being ridiculed by UM members here is my personal solution.

Bobs your uncle.[/quote]

Way to go .... Congrats

[Marcosteffano]

Right let's get a few things straight.ive been laying bricks since 1979 and I have numerous qualification and experience in these matters.first of all a dpc level should be set at a minimum 150mm or 6inch above ground level which would be your internal floor level but not your ffl finished floor level.all floors cast in concrete should have plastic membrane that is folded onto the block dpc.so that covers the walls and floor answer.as for the concrete piers(pillars) well they are or seem to be made of a higher density concrete that has been vibrated to give it extra properties of strength and the ability to resist water penetration.so the chances of damp travelling up the piers or pillars is minimal.hence when a wall is built in the western world it typically has a stone or concrete coping on top or as in the old days we used to do BOE brick on edge which was a engineering type red or blue brick to stop water (rain) penetrating the top of the wall.so this just leaves the question of cement render.in the western world not just the uk there are various additives such as pva (white wood glue) that you can add to the render to prevent water ingress.as I pointed out earlier in a picture the render is usually from the dpc up thus being 150mm from ground level.as for you fat bob I suggest your read things more carefully.i never mentioned anything in my reply about fired(kilned) bricks.i was merely pointing out where the render starts.as my dad used to say.son you should listen to the doctor not the disease.i must say it pisses me off when lolly pop men and doughnut bakers become building advisors and civil engineers.

[fatbob]

So Marco, in Thailand what do you propose to have below floor level, normally in this country the slab and slab beam are at floor level, what do you propose, a rebate in the slab, slab beam to accommodate face bricks that are not available in this country laid to floor level. In Aus standard practice is to never leave brickies unsupervised as they will always find a way to f up....

[Marcosteffano]

So Marco, in Thailand what do you propose to have below floor level, normally in this country the slab and slab beam are at floor level, what do you propose, a rebate in the slab, slab beam to accommodate face bricks that are not available in this country laid to floor level. In Aus standard practice is to never leave brickies unsupervised as they will always find a way to f up....

You keep going on about bricks.ive not mentioned bricks below or above dpc.in the picture I posted I wrote about render from 150mm above ground level or internal floor level and you started going on about not being able to get fired (kiln) bricks.where did I say about any bricks.i posted a picture of render and you started piping up about bricks.

.once again i must remind you I never mentioned bricks with this picture....you came out with fired bricks that you can't get here...I never wrote anything about bricks with this picture.ffs your hard work and as for brickies aus needs uk brickies and we need aussies to pour our pints in witherspoons on minimum wages.

[Marcosteffano]

So Marco, in Thailand what do you propose to have below floor level, normally in this country the slab and slab beam are at floor level, what do you propose, a rebate in the slab, slab beam to accommodate face bricks that are not available in this country laid to floor level. In Aus standard practice is to never leave brickies unsupervised as they will always find a way to f up....

https://youtu.be/M59YQfYaRY8

[Marcosteffano]

Didn't take 10 seconds to find this one https://youtu.be/cg616tIOrNU

[Marcosteffano]

For starters you cannot get fired bricks here unless you import them from OS. I'll stick to my lard sanga's and watch people dig them selves out of holes...

Fired bricks obviously on a different planet.read my post didn't mention bricks or importing bricks..I was talking about rendering.what goes under the dpc is entirely up to you..are you trying to wind me up by acting thick?

[Marcosteffano]

So Marco, in Thailand what do you propose to have below floor level, normally in this country the slab and slab beam are at floor level, what do you propose, a rebate in the slab, slab beam to accommodate face bricks that are not available in this country laid to floor level. In Aus standard practice is to never leave brickies unsupervised as they will always find a way to f up....

44688EE2-248F-441C-BD71-20580B8FD374-2165-000003038A176DB7.jpeg (11.96 KiB) Viewed 2687 times

there,a floor membrane ready to cast a concrete floor and over lapping the footing walls to a height of dpc where the walls will be built on.it don't get much easier than that.

[Marcosteffano]

So Marco, in Thailand what do you propose to have below floor level, normally in this country the slab and slab beam are at floor level, what do you propose, a rebate in the slab, slab beam to accommodate face bricks that are not available in this country laid to floor level. In Aus standard practice is to never leave brickies unsupervised as they will always find a way to f up....

Now who has mentioned face brickwork on this post? Come on answer the question,you've insulted my intelligence with your nonsense about building.If you've got to supervise your brickies you need to look at how you find these brickies.as me dad used to say,if you pay peanuts you get monkeys and I bet you've gone through a few monkeys.in fact if I went for a job interview With you I would be doing the interviewing.I hope your not still supervising out here because I wouldn't want you building a dog kennel for me.sorry supervising building a dog kennel.bricks,bricks and facing bricks.that is the question.anyway I'm not replying to anymore of you bs but if anyone needs advice I will gladly try to point them in the right direction.

[fatbob]

So Marco, in Thailand what do you propose to have below floor level, normally in this country the slab and slab beam are at floor level, what do you propose, a rebate in the slab, slab beam to accommodate face bricks that are not available in this country laid to floor level. In Aus standard practice is to never leave brickies unsupervised as they will always find a way to f up....

44688EE2-248F-441C-BD71-20580B8FD374-2165-000003038A176DB7.jpeg there,a floor membrane ready to cast a concrete floor and over lapping the footing walls to a height of dpc where the walls will be built on.it don't get much easier than that.

Now show on a slope or the side of a mountain? By the way you would not even get to interview stage...but you would get 10 peanuts a day and one banana if you were lucky...

[JohnG]

Right let's get a few things straight.ive been laying bricks since 1979 and I have numerous qualification and experience in these matters.first of all a dpc level should be set at a minimum 150mm or 6inch above ground level which would be your internal floor level but not your ffl finished floor level.all floors cast in concrete should have plastic membrane that is folded onto the block dpc.so that covers the walls and floor answer.as for the concrete piers(pillars) well they are or seem to be made of a higher density concrete that has been vibrated to give it extra properties of strength and the ability to resist water penetration.so the chances of damp travelling up the piers or pillars is minimal.hence when a wall is built in the western world it typically has a stone or concrete coping on top or as in the old days we used to do BOE brick on edge which was a engineering type red or blue brick to stop water (rain) penetrating the top of the wall.so this just leaves the question of cement render.in the western world not just the uk there are various additives such as pva (white wood glue) that you can add to the render to prevent water ingress.as I pointed out earlier in a picture the render is usually from the dpc up thus being 150mm from ground level.as for you fat bob I suggest your read things more carefully.i never mentioned anything in my reply about fired(kilned) bricks.i was merely pointing out where the render starts.as my dad used to say.son you should listen to the doctor not the disease.i must say it pisses me off when lolly pop men and doughnut bakers become building advisors and civil engineers.

I'm sure you have far more extensive bricklaying experience than most here, if not all - in "the western world". Your experience in the Asian / Thai world, however, appears to be rather less.

Very different construction materials and techniques, for a very different climate.

[Barney]

It's a shame with all the experts, and I say that in a kind and positive manner, that we as a group can't provide Deankham with a solution to his very common problem. I'm sure that others who have the problem would like advice as well and more will check their design if building. I'm now glad I raised my house and did not put it on a slab.
It's obvious his house is already built and did not have the moisture protection built into the foundation. So no need to continue on with how it should have been built. Me being a sometimes small time boss on large projects I do not give much time to engineers or field supervisors who can only tell me what's wrong and not provide a solution to field problems.
I tried to help with a simple method of rectification that I used on a house I built in Vietnam. Sorry Fatbob but it worked. Maybe I was just lucky, but by draining the area as a I explained I removed all the moisture in the soil. Painted the concrete down to the bottom of the beam with at that time a thick bitumous sealant paint, back filled it like I said and never had a problem once I painted again.

Bobs not my uncle either but just an old saying.

[the-monk]

Sorry, I neither have an answer to the question, however when
Barney mentioned << thick bitumous sealant paint >> i thought that i would share my observation - experience in Thailand. The Thai house where i live was built some 15 years ago with very little expertise .
But on the house outddor contour they applied a dark brown colour sealant/paint/ ?? from the slab to the floor level, and inside the house on every wall from the floor up to about 15 cm. Anyone knows what is this brown stuff ?
If you wash this sealant/paint with warm water or use a paint thinner, the sealant would kind of liquify. Both inside and outside it does not peel it does << wash away >>. So far they never had any peeling paint outdoor or indoor.
Back home we use tar based sealant from the footing to the ground level and add a waterproof membrane before backfilling

[fatbob]

Well Barney and Uncle Bob Im sure the first person that can make strawberry jam from pig sh-t is going to be a billionaire, over and out.

[maaka]

my house is on a slab and the floor is raised one metre from the ground, and I have one of these blister type thingys..its not the paint peeling, its like salt, or cement, or a white powdery stuff is coming out of the blockwork and growing like a wart..I thought it was water coming down the inside of the blocks from the roof, then maybe coming up thru the floor..we just painted over it again after I scuffed it off, and life goes on again..