I really enjoy hearing absolute experts. Super Experts are not always valued by Management - Because Management would rather employ generic employees who know a fair bit about many things but may not have the depth of knowledge that specific real experts have accumulated over the years - plus the newer staff will just go along with a boss who wants to save as much money as possible. Younger newer employees still learning their trade may not even know about different mortars. Whereas real expert and very experienced people who understand why some other solutions will be better should be paid accordingly for their specialist expertise. And when you come across these super experts they can concisely, logically and expertly explain the WHAT, WHEN, WHERE, WHY and HOW without any useless waffle. Worth their weight in GOLD.
Very knowledgeable and concise. Well presented. Thank you. This will go far in helping people understand why a natural product such as lime putty should be used on the restoration of old buildings.
Very good to see quality knowledge of lime in use for construction on the youtubes these days compared to about a decade ago...thank you. I'm looking to do a stone masonry knee wall with a lime mortar. A timber frame structure. And a wall enclosure with either straw/lime or a hemp/lime with lime finish. I wonder what limes to use in each case?
Thank-you! This is so interesting. I prefer natural building materials. Our Central Texas limestone is very white. That grey limestone you have reminds me of the Leuders stone quarried in Leuders Texas.
Hello What kind of lime mixe would you recommend for a 1940 brick building that is located in new brunswick Canada on the eastern shore for repointing? Charles Thank you
Hi Charles. I used to do heritage work in Canada (Toronto). Tough to say, 1940s, good chance it's a weaker cement/lime mix. Cement was definitely used in Canada at that time, but maybe not ubiquitous. Code will say use a "Type O" mix for restoration, like on the parliament buildings in Ottawa for example. I forget what that exact mix is now, but you could try a 1:1:6 Cement:Lime:Sand or weaker. If you can get NHL 3.5, a 1:3 or 1:4 mix would do. Hope this helps.
Here's some simple observations. Underground where it's wet a strong mix is used and not just lime mix mortar cement is added.Pointing should be a stronger mix than the underneath mix which was laid and one reason non cement{old lime} buildings have moved terribly over the years is because they didn't use cement{or not as much}.Cement is added to make a mix stronger so if done right it doesn't move in the first place so if wanting a building to "breath" is so good then why is cement used at all anywhere?I've pulled down many an old lime mortar wall over the years as well as old strong cement based walls and I know which ones have rotted the most. Given a choice of hacking off an old lime plastered wall or a hard cement render I know which one i'd choose and why.
It's all about cost and ignorance... a bag of cement is alot cheaper than a bag of hydraulic lime or a tub of lime putty so the modern day builder (who very rarely has any concerns about heritage or conservation) will always try to sway the client towards the use of cement based mortars /renders...... also there's probably the best part of 5 generations within the construction industry who haven't been taught about traditional techniques, methods and materials so they have no idea about what materials should be used and in what situations...
Our politicians are ALL full of it! When they say "help the environment" they only mean lowering our life standars a raising theirs. Lime is definitely ingenious discovery, ca be thoughtful of as a perfect product of civilization! And it's quite older than the Romans. Cheers
I really enjoy hearing absolute experts. Super Experts are not always valued by Management - Because Management would rather employ generic employees who know a fair bit about many things but may not have the depth of knowledge that specific real experts have accumulated over the years - plus the newer staff will just go along with a boss who wants to save as much money as possible. Younger newer employees still learning their trade may not even know about different mortars.
Whereas real expert and very experienced people who understand why some other solutions will be better should be paid accordingly for their specialist expertise.
And when you come across these super experts they can concisely, logically and expertly explain the WHAT, WHEN, WHERE, WHY and HOW without any useless waffle. Worth their weight in GOLD.
Very knowledgeable and concise. Well presented. Thank you. This will go far in helping people understand why a natural product such as lime putty should be used on the restoration of old buildings.
Very informative. This is a subject that causes a lot of confusion and you have shed some light on it. Thank you.
Excellent video, thank you. Clear, comprehensive and in a logical sequence.
Very good to see quality knowledge of lime in use for construction on the youtubes these days compared to about a decade ago...thank you. I'm looking to do a stone masonry knee wall with a lime mortar. A timber frame structure. And a wall enclosure with either straw/lime or a hemp/lime with lime finish. I wonder what limes to use in each case?
Thank-you! This is so interesting. I prefer natural building materials. Our Central Texas limestone is very white. That grey limestone you have reminds me of the Leuders stone quarried in Leuders Texas.
Well explained! A quick & comprehensive knowledge about the lime and their characteristics through lime journey cycle. Thank you!
Really interesting video, given me a deeper understanding of the reasoning for using lime mortar
Superb lecture
Very used full information.
Very informative. Thank you.
Would you use lime mortars on new builds with a cavity wall construction of block, insulation and natural stone?
wonderful material
Hello
What kind of lime mixe would you recommend for a 1940 brick building that is located in new brunswick Canada on the eastern shore for repointing?
Charles
Thank you
Hi Charles. I used to do heritage work in Canada (Toronto). Tough to say, 1940s, good chance it's a weaker cement/lime mix. Cement was definitely used in Canada at that time, but maybe not ubiquitous. Code will say use a "Type O" mix for restoration, like on the parliament buildings in Ottawa for example. I forget what that exact mix is now, but you could try a 1:1:6 Cement:Lime:Sand or weaker. If you can get NHL 3.5, a 1:3 or 1:4 mix would do. Hope this helps.
Fabulous
awesome
Nice presentation. In North American freeze/thaw situations do you use natural hydraulic line or hydraulic lime?
Lol like Florida?😉
At 5:16 he says hydraulic but means hydrated
Here's some simple observations. Underground where it's wet a strong mix is used and not just lime mix mortar cement is added.Pointing should be a stronger mix than the underneath mix which was laid and one reason non cement{old lime} buildings have moved terribly over the years is because they didn't use cement{or not as much}.Cement is added to make a mix stronger so if done right it doesn't move in the first place so if wanting a building to "breath" is so good then why is cement used at all anywhere?I've pulled down many an old lime mortar wall over the years as well as old strong cement based walls and I know which ones have rotted the most. Given a choice of hacking off an old lime plastered wall or a hard cement render I know which one i'd choose and why.
You say it absorbs CO2, why do we not use it more then?
It's all about cost and ignorance... a bag of cement is alot cheaper than a bag of hydraulic lime or a tub of lime putty so the modern day builder (who very rarely has any concerns about heritage or conservation) will always try to sway the client towards the use of cement based mortars /renders...... also there's probably the best part of 5 generations within the construction industry who haven't been taught about traditional techniques, methods and materials so they have no idea about what materials should be used and in what situations...
@@stones105 so very true
Our politicians are ALL full of it! When they say "help the environment" they only mean lowering our life standars a raising theirs. Lime is definitely ingenious discovery, ca be thoughtful of as a perfect product of civilization! And it's quite older than the Romans. Cheers
Overthinking it.