Discussion
We are (finally) hoping to paint the render on the 1st floor of our house this summer, a few questions from the knowledgable PH types would assist greatly beforehand:
1. How best to deal with the hairline cracks? (there are several of these distributed around the house).
2. Best stuff to wash the render with prior to painting?
3. Best paint?
4. Best application method - was thinking roller with brush for cutting in?
Before painting we'll touch in the bits where the render has been repaired or the cavity wall insulation holes were drilled & filled - 50/50 Ok for this?
1. How best to deal with the hairline cracks? (there are several of these distributed around the house).
2. Best stuff to wash the render with prior to painting?
3. Best paint?
4. Best application method - was thinking roller with brush for cutting in?
Before painting we'll touch in the bits where the render has been repaired or the cavity wall insulation holes were drilled & filled - 50/50 Ok for this?
Can’t really answer with regards to cracks, but;
Cleaning - jet wash
Best paint - IMO Valspar (or trade paint, like Dulux Trade)
Application - rent/buy yourself a sprayer and practise, will save hours! Short of that, very thick roller on the main parts and cut in with a brush, but you’ll get differing finishes.
Cleaning - jet wash
Best paint - IMO Valspar (or trade paint, like Dulux Trade)
Application - rent/buy yourself a sprayer and practise, will save hours! Short of that, very thick roller on the main parts and cut in with a brush, but you’ll get differing finishes.
Hi,
the French filler is probably Toupret , you can buy this at toolstation where it's usually cheaper than trade stores.
We tend to use a company called Plaspertex for exterior paint , either google or call 01353720796. They sell a range of exterior paints but for small quantities they'll probably recommend you use Plasbond. The paint will cover and fill hairline cracks of a few mm and the finish lasts for years. If you are close to their depot then much better than delivery as its approx £55 per pallet whether 10 litres or 100's.
Give them a call and ask for a sample colour chart , never had any complaints with the finish in the last 5 years. They offer a guide of 5msq per litre but we average about 10msq per litre. Always 2 coat.
Scrape the existing cracks using a wire brush so no dirt/grime left in the crack.
As others say either a powerwasher to clean or if smooth render you'll be able to sponge with water/anti fungal wash mix and then rinse off.
Unless you live in an area with no neighbours ,cars or windows, then electric spraying render is not advisable , even spray from a conventional roller will travel some distance with the slightest breeze.
Buy some cheap dustsheets to cover cars in the vicinity. Also a good idea to cover windows with cheap lining paper and masking tape it to the frames, that or spend hours with a scraper cleaning off overspray. A few hours spent on prepping and covering correctly will save you many many more hours if you don't. Remove the tape and lining paper overnight as it may glue itself to the frames.
If you go the sandtex/dulux weathershield route it's advisable not to buy the textured as its a PITA , go smooth.
the French filler is probably Toupret , you can buy this at toolstation where it's usually cheaper than trade stores.
We tend to use a company called Plaspertex for exterior paint , either google or call 01353720796. They sell a range of exterior paints but for small quantities they'll probably recommend you use Plasbond. The paint will cover and fill hairline cracks of a few mm and the finish lasts for years. If you are close to their depot then much better than delivery as its approx £55 per pallet whether 10 litres or 100's.
Give them a call and ask for a sample colour chart , never had any complaints with the finish in the last 5 years. They offer a guide of 5msq per litre but we average about 10msq per litre. Always 2 coat.
Scrape the existing cracks using a wire brush so no dirt/grime left in the crack.
As others say either a powerwasher to clean or if smooth render you'll be able to sponge with water/anti fungal wash mix and then rinse off.
Unless you live in an area with no neighbours ,cars or windows, then electric spraying render is not advisable , even spray from a conventional roller will travel some distance with the slightest breeze.
Buy some cheap dustsheets to cover cars in the vicinity. Also a good idea to cover windows with cheap lining paper and masking tape it to the frames, that or spend hours with a scraper cleaning off overspray. A few hours spent on prepping and covering correctly will save you many many more hours if you don't. Remove the tape and lining paper overnight as it may glue itself to the frames.
If you go the sandtex/dulux weathershield route it's advisable not to buy the textured as its a PITA , go smooth.
indigostr said:
Hi,
the French filler is probably Toupret , you can buy this at toolstation where it's usually cheaper than trade stores.
We tend to use a company called Plaspertex for exterior paint , either google or call 01353720796. They sell a range of exterior paints but for small quantities they'll probably recommend you use Plasbond. The paint will cover and fill hairline cracks of a few mm and the finish lasts for years. If you are close to their depot then much better than delivery as its approx £55 per pallet whether 10 litres or 100's.
Give them a call and ask for a sample colour chart , never had any complaints with the finish in the last 5 years. They offer a guide of 5msq per litre but we average about 10msq per litre. Always 2 coat.
Scrape the existing cracks using a wire brush so no dirt/grime left in the crack.
As others say either a powerwasher to clean or if smooth render you'll be able to sponge with water/anti fungal wash mix and then rinse off.
Unless you live in an area with no neighbours ,cars or windows, then electric spraying render is not advisable , even spray from a conventional roller will travel some distance with the slightest breeze.
Buy some cheap dustsheets to cover cars in the vicinity. Also a good idea to cover windows with cheap lining paper and masking tape it to the frames, that or spend hours with a scraper cleaning off overspray. A few hours spent on prepping and covering correctly will save you many many more hours if you don't. Remove the tape and lining paper overnight as it may glue itself to the frames.
If you go the sandtex/dulux weathershield route it's advisable not to buy the textured as its a PITA , go smooth.
That's excellent info, thanks. I'm in the same boat as the OP and was looking for the best product to use.the French filler is probably Toupret , you can buy this at toolstation where it's usually cheaper than trade stores.
We tend to use a company called Plaspertex for exterior paint , either google or call 01353720796. They sell a range of exterior paints but for small quantities they'll probably recommend you use Plasbond. The paint will cover and fill hairline cracks of a few mm and the finish lasts for years. If you are close to their depot then much better than delivery as its approx £55 per pallet whether 10 litres or 100's.
Give them a call and ask for a sample colour chart , never had any complaints with the finish in the last 5 years. They offer a guide of 5msq per litre but we average about 10msq per litre. Always 2 coat.
Scrape the existing cracks using a wire brush so no dirt/grime left in the crack.
As others say either a powerwasher to clean or if smooth render you'll be able to sponge with water/anti fungal wash mix and then rinse off.
Unless you live in an area with no neighbours ,cars or windows, then electric spraying render is not advisable , even spray from a conventional roller will travel some distance with the slightest breeze.
Buy some cheap dustsheets to cover cars in the vicinity. Also a good idea to cover windows with cheap lining paper and masking tape it to the frames, that or spend hours with a scraper cleaning off overspray. A few hours spent on prepping and covering correctly will save you many many more hours if you don't. Remove the tape and lining paper overnight as it may glue itself to the frames.
If you go the sandtex/dulux weathershield route it's advisable not to buy the textured as its a PITA , go smooth.
Someone else suggested Rust-Oleum Murfill paint. Have you any experience of that product?
sparkythecat said:
That's excellent info, thanks. I'm in the same boat as the OP and was looking for the best product to use.
Someone else suggested Rust-Oleum Murfill paint. Have you any experience of that product?
We use rust-oleum metal paint ,combi-color, and the results are second to none. We’ve used on everything from exterior steps to cantilever doors. When we were contracting on Audi showrooms this was the paint specified for all exposed interior metalwork.(columns,beams etc.) Having read the spec on Murfill and Plaspertex the paints are a similar product, gap filling/bridging properties as the paint is ‘elasticated’.Someone else suggested Rust-Oleum Murfill paint. Have you any experience of that product?
We were last invoiced £32 per 10 litre of Plasbond ,much better value than diy store products.
dhutch said:
Presumably this is cement render, on a cavity wall you said, presumably cement mortar too?
Daniel
No idea, though we have a builder redoing a cement fillet next week & he said he can repair a section of render at the same time with the same mix. Daniel
Walls will be re-done in white so guessing we'll just need to apply 2 coats, no base coat or anything?
Some very helpful replies above, many thanks all.
LordHaveMurci said:
Sir Bagalot said:
Jonboy_t said:
Can’t really answer with regards to cracks, but;
Cleaning - jet wash
OP asked to wash it, not strip it.Cleaning - jet wash
te but not enough to blow the render off the wall! Jonboy_t said:
LordHaveMurci said:
Sir Bagalot said:
Jonboy_t said:
Can’t really answer with regards to cracks, but;
Cleaning - jet wash
OP asked to wash it, not strip it.Cleaning - jet wash
te but not enough to blow the render off the wall! And you don’t get wet
LordHaveMurci said:
No idea, though we have a builder redoing a cement fillet next week & he said he can repair a section of render at the same time with the same mix.
Walls will be re-done in white so guessing we'll just need to apply 2 coats, no base coat or anything?
Some very helpful replies above, many thanks all.
I expect it is.Walls will be re-done in white so guessing we'll just need to apply 2 coats, no base coat or anything?
Some very helpful replies above, many thanks all.
But only because lime render is a very different game all together, and is what we have on the new house.
Cement became the norm between about 1920-40.
Daniel
House is Mid 80's so no lime render!
As render is on 1st floor I'm not sure how practical a jet wash is going to be anyway, that's assuming I could borrow my neighbours to begin with.
Can I just use a broom & a bucket of anti fungal cleaner or similar? Probably hard work but hey, everything is hard work on this house at the moment!
As render is on 1st floor I'm not sure how practical a jet wash is going to be anyway, that's assuming I could borrow my neighbours to begin with.
Can I just use a broom & a bucket of anti fungal cleaner or similar? Probably hard work but hey, everything is hard work on this house at the moment!
LordHaveMurci said:
House is Mid 80's so no lime render!
As render is on 1st floor I'm not sure how practical a jet wash is going to be anyway, that's assuming I could borrow my neighbours to begin with.
Can I just use a broom & a bucket of anti fungal cleaner or similar? Probably hard work but hey, everything is hard work on this house at the moment!
Buy a Nilfisk jet washer on Ebay they start around £50 - then make a S using an old bucket handle etc and hang it on a rung of your (neighbours) ladderAs render is on 1st floor I'm not sure how practical a jet wash is going to be anyway, that's assuming I could borrow my neighbours to begin with.
Can I just use a broom & a bucket of anti fungal cleaner or similar? Probably hard work but hey, everything is hard work on this house at the moment!
If a jetwash can damage your render then it needed removing anyway - most render I come across is hard to remove with an SDS
For a one of job any of their domestic range will be fine, these days you seem to get much more for your money then with Karcher.
However if you have a not and want to buy some nice kit, the advice I had a couple of years ago from Barlows who are the service agent for Nilfisk is:
C125 - Smallest that you can get proper spares for
E140 - Most common, used for their hire washers, etc.
If the model no's are out of date I'm sure Barlows in Manchester will oblige.
Daniel
However if you have a not and want to buy some nice kit, the advice I had a couple of years ago from Barlows who are the service agent for Nilfisk is:
C125 - Smallest that you can get proper spares for
E140 - Most common, used for their hire washers, etc.
If the model no's are out of date I'm sure Barlows in Manchester will oblige.
Daniel
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