Home > VIDEOS > VIDEO - Lime Pointing

VIDEO - Lime Pointing

By: Clare Birtles - Updated: 13 Jul 2014 | comments*Discuss
 

Video Transcript

Hello I'm Colin Braithwaite and this is my son Philip, we are from Braith-Heritage supplies. we are working with sustainablebuild.co.uk, and we are going to give you a short demonstration on lime pointing.

What you will see now is Philip chipping out the pointing. What we try to do is get it back down about 10mm; this will allow the new lime mortar to key in.

Here we see Philip spraying the wall, you must wet it continuously. What we don't want is the wall sucking the moisture out of the lime mortar.

What we are going to do now, there is a big void in there so we put some lime mortar in and some pinning's, and what your doing is ramming it back in. (Pinnings are bits of stone, that's what we call pinning's it is a trade name.) More lime mortar, more pinning's and keep ramming it back in until you fill the void up until you can get no more back in.

You can use any trowels that you want that you're comfortable with. As you can see Philip is using the bucket trowel to hold the lime mortar. You could use a hod, a brick trowel, whatever you have to hand use that and get comfortable with it.

Usually if you can get your finger in you would put a pinning in like Phil is doing now, because you don't want to fill them with lime mortar, you want to fill them with pinnings. It's as easy as that. Then when he has filled them with pinning's he will put more lime mortar on top of it.

Also what we are looking for is to fill it proud, what we want is the lime mortar to become proud above the stone. There is a reason for that we will show you later.

You would leave that for 24 hours let the air get to it to dry slightly. Come back 24 hours later and you will stipple it with a brush, what Philip is going to demonstrate. The idea of this is your beating the lime mortar back into the wall to consolidate it. It's as easy as that. Just beat it back in and what your looking for is you don't want any airline gaps at the top of the joints.

The idea is that the water runs down on the pointing and carries on down the wall; you don't want it going back in the joints.

You might also like...
Share Your Story, Join the Discussion or Seek Advice..
@Spen and @Andy. We have a feature on using lime in renovations here . The Bassetlaw council website has this useful pdf on repointing which includes a section on lime. And there is also some really good information at the mortar industry association.
SustainableBuild - 14-Jul-14 @ 11:56 AM
I need to re point some brick panels in a very old timber frame house, I believe I need to use a specialist lime mortar as I will also repoint around the panel hence next to the oak. I would like to know what is the correct mix for such work and any other tips? Thank you.
Spen - 13-Jul-14 @ 9:22 PM
I have been searching the best lime mix to use for pointing on an old Yorkshire stone house, probably about 200yrs old. It has been pointed in places with cement which is now proud having been washed away. It is only a side wall and the owner just wants it pointed securely again. I hope you might be able to help. Many thanks.
Andy - 3-Jul-12 @ 7:49 PM
Share Your Story, Join the Discussion or Seek Advice...
Title:
(never shown)
Firstname:
(never shown)
Surname:
(never shown)
Email:
(never shown)
Nickname:
(shown)
Comment:
Validate:
Enter word:
SEARCH OUR SUSTAINABLE BUILD DIRECTORY...
IN TOWN / POSTCODE:
Topics
Latest Comments
  • satsuma22
    Re: Straw Bale Construction
    Hi Archie We’d love to speak to you as we are thinking of building our own house near llangollen and are looking at strawbale but need…
    19 April 2018
  • Michael
    Re: Reclaimed Materials
    Hello, I work for a head residential building contractor in London. Do you know if there is a Reclaimed Materials depot here for all types…
    3 April 2018
  • Berni
    Re: Straw Bale Construction
    Can anyone tell me please the best dimensions including notches and eyelettes for making a resizing needle.
    2 April 2018
  • Early
    Re: Reclaimed Materials
    I was creating a business logo and searched "what is another way to say we specialize in the use of reclaimed materials." I want to market…
    20 March 2018
  • doctor
    Re: Pollution From Construction
    Thanks i have got more in learning skill on pollution ,in this website .
    14 March 2018
  • N/A
    Re: Insurance and Mortgage Issues: Wood & Straw Build
    Looking for mortgage for straw bale extension build.
    3 March 2018
  • koa
    Re: Pollution From Construction
    stop building it causes pollution and its damaging our earth
    1 March 2018
  • Peterfc
    Re: Environmentally Friendly, Non Toxic Paint
    Hi I have read what is said about Natural paints and I have a question. I have built a 5,000 lt fish tank in…
    20 February 2018
  • Pickles
    Re: Cob Building
    Hi a, I'm looking into creating a noise barrier between a barn conversion and a busy road. The site has a lot of clay and clay chalk mix so I was…
    18 February 2018
  • Ishezomchumisi
    Re: Stone Construction
    Hi.i have a question ....Sketches the constraction techiniques of stones wall
    10 February 2018
Further Reading...
Our Most Popular...
Add to my Yahoo!
Add to Google
Stumble this
Add to Twitter
Add To Facebook
RSS feed
You should seek independent professional advice before acting upon any information on the SustainableBuild website. Please read our Disclaimer.