Lime Pointing (part 1) Raking joints out.
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- Опубликовано: 14 мар 2021
- A terraced gable end house is beset with damp issues, rising from a failed, rendered, gable end.
Here, we knock off the 60 year old render and expose the stonework beneath. The poorly executed cement pointing under the render, was to blame for the damp. We break out this cement pointing and extoll the virtues of raking out those joints prior to the application of lime mortar.
A brilliant crew that really seems to take pride in doing the best possible job. 👏🏻👏🏻👏🏻
Great stuff - getting right down to the root of the problem (inappropriate modern pointing and render). Well worth watching by anyone who has an old house which has been meddled with.
Another gem of a video revealing lost information to fill the confused nooks and crannies of the masses confused minds and letting them breathe again.
Love it! Cheers for the props matey.
Appreciate the lessons in parts 1 and 2. Thank you very much.
Nice video mate.
Hi I’m looking to line mortar re-point the front of my house is it okay if I started to rake out the mortar at the bottom of the house and leave it a few weeks as it may be a few weeks before I can get to the top of the house really helpful videos thank you for your help
Thats exactly what we did on this particular project. The bottom 8' of render and cement pointing was broken away. This revealed the lime pointing. It was raked back and left for a summer. This greatly sped up the exit of moisture from the wall.
I would definately recommend letting the wall breathe, if you have the time to wait.
Thanks for the view.
@@dportercontracting9974 Hi thank you for your reply that’s great it means I don’t have to do the whole job in one big go as I have a feeling it’s not going to be as easy as you make you look on the video
All the best and thank you again Kai
How do you decide how much old mortar to take out? or do you just take it all out?
Have a watch f the video and it will explain your question my friend.
Hi,what ratio of lime and sand are u using,and is is hydraulic (3.5-5nhl) or hydrated?good videos by the way.
Hi Rocky, thanks for the props!
If I remember rightly, the mix ratio used on this job is on the (Part 2) video. I decided to use NHL 5 on this gable end, as the rain and wind blow into it for much of the year. I wouldn't have wanted to risk the use of hydrated lime, with it being so exposed to the elements. The clays in NHL lime add to the repelence of the mortar. Also, it was late in the year when we started to get lime mortar back into the wall. Winter can be a cruel mistress with fresh lime hydrated, mortar work.
Hiya mate, currently doing this sort of work as a laborer, am I asking too much going in at 150 a day? Skilled mind, did 5 metres myself the other day? Been doing it 5 years now. Know the mixes and how to put it on.
Hi Valorous. I'd say 150 as a labourer would be good money to charge for lime work. Your gaffer would be putting more than that in his back pocket..
Do you not fancy going it alone on your own back?
@@dportercontracting9974 Thanks for the quick reply, at some point but my boss is near retirement so potentially looking to take over
If you're after any work I've got a low level barn and a full farmhouse to rake out and repoint in lime there's about 16000 sq metres in total, its a bit big for me by myself, I'm based in Derbyshire 😊
Ah, sorry bud but I don't travel a huge distance for work anymore.
Im booked up, round home for at least 6 months anyways..
Best of luck on your project. It sounds a good un to get stuck into. Hopefully the weather will be on your side this year.👍
@@dportercontracting9974 Can you recommend any lime mortar repointers who cover the Cheshire area?
@@jayfreedom Hi Jay, I've worked in Cheshire but unfortunately didn't meet any contractors on my peramble through the area.
Nice to watch someone who knows what they're doing 😊 top job, where abouts are you based??
Ha cheers for the props matey. I'm just good at blagging really..😄
I'm based in a mill town called Barnoldswick, on the York's/Lancs border.
Do you work with lime much yourself?
Thought the accent was local ! I’m in skipton. Enjoying your videos. I’m about to start a renovation of a cottage in laneshaw bridge not so far from you . Full repoint . Full re plaster , new roof , all in lime , jeez it’s daunting !
@@peterridding4874 Good luck with the refurb. Are you using traditional materials, or modern cemetitious ones?
@@dportercontracting9974 nope no cement mate . Gonna give my lime work debut a go . The cottage is damp as hell and I want to put it right as sympathetically as I can . Plastic paint on outside walls needs to come off too because that’s keeping the moisture in . So it’s lime plaster walls , lime pointing on the outside . Where do you source your lime products if you don’t mind me asking ?
@@peterridding4874 Sounds ideal! You are doing the old building the justice that it deserves!
A common issue that we come across is that modern paints lock in the moisture in a structure. Consequently causing damp ingress.
I use Limestuff.com for my lime and traditional building supplies. They are competitively priced and know their buisness when it comes to lime work.
What's that giant gray stoney looking plaster? I think our house has it as well. It's portland cement?
Hi Farimund. Thanks for the props!
The plaster looking product is the cement render. This was installed in the 1960s. It keeps the moisture out but any moisture that has ingressed into the property becomes trapped behind the moisture. This is the reason that the house has become damp.
@@dportercontracting9974 Ahh thanks. Our house from the 17th century has had a lot of modern changes to it and only got monument status a couple decades ago.
It seems that because of this people were rather free in removing things and doing cheap repairs.
Our front wall seems to me what is old bricks with lime mortar.
I'm thinking perhaps the same thing happened here as in your video to the other walls, pointing old stuff with cement, then it cracks, then the cement render on top...
That's how it stands now. They even built a second wall on the inside for some reason, perhaps indeed moist issues.
Anyways, thanks for responding!
How long should you wait between wetting the joints and applying the lime mortar?
I usually wait until the wet look has dried up. 5-10 minutes usually. Try not to drench the wall. Just a misting will suffice.
If the joints are too damp then the cured mortar will bleed and white stains shall appear on the substrate.
Hi mate, amazing videos !! How do you clean the bricks after repointing with lime mortar?? Are the bricks supposed to be the original colour, would you use brick acid ?? Cheers bud
After the stonework is raked out, then the wall can be sandblasted or acid washed, prior to pointing up.
If you acid wash after pointing up, then the acid will degrade the quality of the mortar in the joints.
It wasn't Billy it was sken eyed Michael from the bradshaws maybe you to young to remember the bradshaws of barnolswick it was a radio program double funny keep going you know your graft