Repairing your brick chimney: Part 4. Repair and replacement of bricks
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- Опубліковано 6 лют 2025
- What do you do when bricks in a chimney are damaged or eroded? Using our Old House Project as an example, we cover what to look for, replacing an eroded brick, repairing a fractured brick, pointing with lime mortar, after care and why bricks have a frog.
Other videos in the series:
1. Introduction: • Repairing your brick c...
2. Flaunching and mortar fillets: • Repairing your brick c...
3. Repointing: • Repairing your brick c...
For further information on this topic, download our Technical Advice Note on fireplaces, flues and chimneys: www.spab.org.u...
Have a question about an old building? Phone our free advice line on 020 7456 0916, Monday-Friday 9.30am-12.30pm or visit our website for FAQs on caring for historic buildings: www.spab.org.u...
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The Society for the Protection of Ancient Buildings (SPAB) believes old buildings have a future. From cottages to castles and from churches to cathedrals we are here to help buildings and the people who care for them. Through our unique training schemes, courses, advice and research we help people put our expertise into practice.
www.spab.org.uk/
37 Spital Square, London E1 6DY
With special thanks to Lynn Mathias.
Filmed at our Old House Project St Andrew's in Boxley, Kent by @photography.tuition
Music: Ed Cook Sound
I thoroughly enjoyed this video. You at the SPAB have my respect. Too many of our older buildings are demolished in favour of new buildings. Well done all of you.
Thank you for your kind comment!
You made that so simple ... Thank you for taking the time and having all that knowledge for the taking ... Thanks again ...
Outstanding instructional video. I can't comment on the techniques since I am here to learn how to repair the top of my garage chimney (low height) but the video and audio are excellent making it very clear what you are doing.
Thanks for creating and posting this video!
Thanks John 😊
Very informative video. When you have an old house these videos are excellent 👍
Thank you for watching! If you'd like more advice on caring for an old house please feel free to check out our website. www.spab.org.uk/advice
Excellent video. Very imformative.
Thank you, glad you enjoyed it!
My new hobby.Thank you.
Thank you!
Thanks for watching!
Great video! Thank you
Thanks for watching!
Great skills and a great job.
Thank you for your kind comment!
Hello sir, what was the charge for this fine repair?
'frog.' I've heard many reasons it is called a 'frog', until i spoke to a very old brickmaker at Bore Place Handmade Bricks ,Kent. I was working on a 16th century barn conversion nearby and needed some 'Squint' bricks, (angled), for the job. This is what he told me. A circular trough in the ground (about 3ft wide and 2ft deep and 10ft in diameter ), was filled with the clay medium, water, sand, etc.. In the trough was a large circular stone, like a mill stone, A post in the centre had fixed to it a long wooden pole that joined the stone by an axel and that was fixed to a horses collar.
As the horse walk the trough the clay medium softened to become the 'Pug' (Bricklayers will know the term), for the brick material. The horse would leave his 'Frog Print ' (The underside of a horses hoof is called a 'Frog') in the clay, This word migrated to become the name for indent in a brick.
Hope that wasn't too long! I also worked under the auspices of SPAB through a man named Steven Rickards. A very knowledgeable Person!
John, (52 years in Masonry)
The actual term "frog" comes from the dutch word "kikker" Traditional brick making consisted of a wooden box with a "kicker" in the middle that was used to force the clay outwards to form the arrises
No it doesn't. That's a Dutch name for moulding. Try better next time.
No it doesn't. Kikker means FROG literally or CLEAT.
Excellent video. What are the tools’ names?
What started as replacing one brick wound up replacing 25 bricks, by removing and replacing the 25, one brick at a time. Do I have that right?
You used lime mortar, can you please tell us the proportionate mix for this lime mortar if possible ….? Thank you
I used 2 builders sand, 1 sharp and 1 NHL 3.5 lime
Thank you for this
Thanks for watching!
what type of mortar did you use? thank you
Lime mortar.
@@spab1877can you tell us the mix of the lime mortar please ….
Talk about going over the top lol. Just chase brick out, and lob another one in.JOB DONE !!!
This shows the SPAB approach which doesn't include 'lobbing in bricks'.
Wish my chimney was as good as that one was at the start 😄 all I have to do is blow and the mortar comes out
6:00 ish
great job but i woulda smoothed out that mortar jeez
You not on price work 🤔
Instructions not clear .I fell down the chimney like Santa 🎅
I'm not builder but this looked like a crap job....I would be concerned about the poor condition of the whole chimney and the lack of maintenance....
There is no mention of the Lime content of the mortar so we can only hazard a guess
I think this guy needs to upskill his basic brick laying skill..
what are you on about?
You ant a brickie
What?
HGM very good bricks 🧱 good job they donated 2.50 per brick
Our 100 yo chiming is significantly worse than this one. Cud u make a video or somehow let me know what to do? Iv searched and still search for videos to learn from. Single mom 5 kids 2 jobs dim (do it myself). I get great pleasure out of diwk's (doin it with kids).