Want to paint over bubbled up brickwork ?

[purpleroad]

Anyone know what causes this bubbling up on lower brickwork? And what's the best way to deal with it if u want to paint over. Do u fill the hole?

 

[pilsbury]

Paint is likely coming off due to moisture. Is it worse below DPC? What's the rest of the wall like? If you scrape the worst off and repaint, the same will likely happen again sooner or later. Not sure what you can do below DPC as there will always be moisture that'll want to bubble the paint...

 

[vinn]

As above.

OP,
Are there any signs of damp inside the house?
Do you have cavity walls or solid?
Is the inside floor solid or suspended?

You have strap pointing & what looks like a gloss paint job - they were applied as remedial measures for previous moisture problems and both are bad choices & wrong remedies.

Rising damp and moisture attempting to escape is blowing off the paint and spalling the brickwork.

Removing all the paint from all painted brickwork - and grinding out the beds & then re-pointing will help.

 

[purpleroad]

As above.

OP,
Are there any signs of damp inside the house?
Do you have cavity walls or solid?
Is the inside floor solid or suspended?

You have strap pointing & what looks like a gloss paint job - they were applied as remedial measures for previous moisture problems and both are bad choices & wrong remedies.

Rising damp and moisture attempting to escape is blowing off the paint and spalling the brickwork.

Removing all the paint from all painted brickwork - and grinding out the beds & then re-pointing will help.

What do u mean grinding out the beds? A builder said it was the salt in the bricks causing this . Is he right?


How about scraping off what paint I can get off and any crumbly pointing, repointing thenot painting over?

Not sure about if the bungalow has a cavity etc

 

[^woody^]

It's damp coming up the wall (which is normal), and this blows the paint off (which is normal too). There may be some associated delamination of the bricks and softening of the mortar due to frost and freezing.

You won't stop it and it's not worth messing about with.

Rub all the loose stuff off. Repoint and mortar over any bad bricks, and then just paint it. And then paint it more in a few years. Repeat as necessary.

 

[vinn]

Grinding out the beds means angle grinding out the bed and perp mortar into a recess about 20mm to 25mm deep.

Salts are part of the rising moisture - but salts as such dont blow off the cover, moisture does that.

 

[purpleroad]

How much would a handyman charge to repoint a few bricks and fill the 3 bricks with holes in before painting over? I assume the bricks need external filler and the pointing is mortar



How do you repoint by the way?

 

[vinn]

Research on here using the search button.

 

[^woody^]

How much would a handyman charge to repoint a few bricks and fill the 3 bricks with holes in before painting over? I assume the bricks need external filler and the pointing is mortar



How do you repoint by the way?

Search here or YouTube for pointing.

I would expect any handyman to want perhaps 1 hour, certainly no more than two including travel. So that's what £25-£50 an hour depending on where you are. Plus a bit for materials but it really is a bit, and he may well have done already on his van.

But it's really a 30 minute job all in.