Hello
After a lot of research and return of quote on different system constructive, I would be starting on a product called Legnobloc self-construction.
A video on youtube:
http://www.youtube.com/watch?v=gs035uX8fKY
https://www.econologie.com/legnobloc-par ... -4334.html
A reseller in France:
http://www.bionergies.eu/
Price:
http://www.bionergies.eu/LegnoDocExtern/BdClegno01.pdf
By cons I am looking for a person with feedback on this type of product.
Thank you
Isolated reinforced concrete wall Legnobloc
Isolated reinforced concrete wall Legnobloc
0 x
I do my best to not leave trash world to my children ....
-
- Moderator
- posts: 79126
- Registration: 10/02/03, 14:06
- Location: Greenhouse planet
- x 10974
It's interesting.
Warning, contrary to what we could see a priori, it is not concrete but agglomerated wood block with an insulating block of polystyrene in which a concrete is poured (for rigidity).
It reminds a pool construction technique except that the blocks are 100% polystyrene.
Technical Info:
After seeing the implementation and the econological cost ...
Warning, contrary to what we could see a priori, it is not concrete but agglomerated wood block with an insulating block of polystyrene in which a concrete is poured (for rigidity).
It reminds a pool construction technique except that the blocks are 100% polystyrene.
Technical Info:
After seeing the implementation and the econological cost ...
0 x
Do a image search or an text search - Netiquette of forum
-
- Moderator
- posts: 79126
- Registration: 10/02/03, 14:06
- Location: Greenhouse planet
- x 10974
After some checks, I still have trouble understanding how we get to 6.09 R on the 37.5 cm block:
It's a mean lambda 0.375 / 6.09 = 0.062, there are plenty of so-called insulating materials that are not so good!
For example, the best cellular concretes (400 density) are at 0.16 cf https://www.econologie.com/isolation-pou ... -3474.html and there is not a gram of traditional concrete in it.
Details:
15cm from PSE to 0.04 lambda gives R = 0.15 / 0.036 (if extruded PSE, it speaks of expanded in the video) = 4.17
14 cm of concrete R = very close to 0 with lambda = 2 one has 0.14 / 2 = 0.07
There remains 37.5 - 15 - 14 = 8.5 cm of block wood cement.
To obtain R = 6.09 it is therefore necessary that these 8.5 cm insulate from 6.09 - 4.17 - 0.07 = 1.85 or a lambda "wood cement" of 0.085 / 1.85 = 0.046 which is very close to insulation alone (0.04).
In short, it seems very optimistic.
Or is there a greed in my estimation?
Otherwise I saw the video completely, the implementation seems very interesting, cons must provide electricity and various plumbing before pouring concrete if you want to enjoy the ease of work blocks!
Is there a point left? That of the differential expansion of concrete and block but I guess it has been taken into account or that it is negligible.
In any case ... on paper it is very attractive!
LEGNOBLOC C 37,5 cm - R: 6,09 - 15cm PSE graphite + 14 cm concrete
It's a mean lambda 0.375 / 6.09 = 0.062, there are plenty of so-called insulating materials that are not so good!
For example, the best cellular concretes (400 density) are at 0.16 cf https://www.econologie.com/isolation-pou ... -3474.html and there is not a gram of traditional concrete in it.
Details:
15cm from PSE to 0.04 lambda gives R = 0.15 / 0.036 (if extruded PSE, it speaks of expanded in the video) = 4.17
14 cm of concrete R = very close to 0 with lambda = 2 one has 0.14 / 2 = 0.07
There remains 37.5 - 15 - 14 = 8.5 cm of block wood cement.
To obtain R = 6.09 it is therefore necessary that these 8.5 cm insulate from 6.09 - 4.17 - 0.07 = 1.85 or a lambda "wood cement" of 0.085 / 1.85 = 0.046 which is very close to insulation alone (0.04).
In short, it seems very optimistic.
Or is there a greed in my estimation?
Otherwise I saw the video completely, the implementation seems very interesting, cons must provide electricity and various plumbing before pouring concrete if you want to enjoy the ease of work blocks!
Is there a point left? That of the differential expansion of concrete and block but I guess it has been taken into account or that it is negligible.
In any case ... on paper it is very attractive!
0 x
Do a image search or an text search - Netiquette of forum
-
- Moderator
- posts: 79126
- Registration: 10/02/03, 14:06
- Location: Greenhouse planet
- x 10974
I integrated the video on the site: https://www.econologie.com/legnobloc-par ... olant-bbc/
0 x
Do a image search or an text search - Netiquette of forum
Technical document of the Legnobloc
Christophe wrote:After some checks, I still have trouble understanding how we get to 6.09 R on the 37.5 cm block:LEGNOBLOC C 37,5 cm - R: 6,09 - 15cm PSE graphite + 14 cm concrete
It's a mean lambda 0.375 / 6.09 = 0.062, there are plenty of so-called insulating materials that are not so good!
For example, the best cellular concretes (400 density) are at 0.16 cf https://www.econologie.com/isolation-pou ... -3474.html and there is not a gram of traditional concrete in it.
Details:
15cm from PSE to 0.04 lambda gives R = 0.15 / 0.036 (if extruded PSE, it speaks of expanded in the video) = 4.17
14 cm of concrete R = very close to 0 with lambda = 2 one has 0.14 / 2 = 0.07
There remains 37.5 - 15 - 14 = 8.5 cm of block wood cement.
To obtain R = 6.09 it is therefore necessary that these 8.5 cm insulate from 6.09 - 4.17 - 0.07 = 1.85 or a lambda "wood cement" of 0.085 / 1.85 = 0.046 which is very close to insulation alone (0.04).
In short, it seems very optimistic.
Or is there a greed in my estimation?
Otherwise I saw the video completely, the implementation seems very interesting, cons must provide electricity and various plumbing before pouring concrete if you want to enjoy the ease of work blocks!
Is there a point left? That of the differential expansion of concrete and block but I guess it has been taken into account or that it is negligible.
In any case ... on paper it is very attractive!
hi Christophe
on the following link:
http://bionergies.eu/LegnoDocExtern/certificazione_DIBT.pdf
in the end there is the data Italian certification of the product.
It is true that they did not go through L'ARCEMI but they have a European reference.
Fab
0 x
I do my best to not leave trash world to my children ....
Hello,
Due to the non-uniform presence of polystyrene insulation, I feel that this product is full of thermal bridges? Have you analyzed these aspects of inhomogeneity of the structure of the wall made?
In return, I find this process a priori more interesting than polystyrene blocks to bancher ...
I'm going to dig ...
Due to the non-uniform presence of polystyrene insulation, I feel that this product is full of thermal bridges? Have you analyzed these aspects of inhomogeneity of the structure of the wall made?
In return, I find this process a priori more interesting than polystyrene blocks to bancher ...
I'm going to dig ...
0 x
-
- Moderator
- posts: 79126
- Registration: 10/02/03, 14:06
- Location: Greenhouse planet
- x 10974
Re: Isolated reinforced concrete wall Legnobloc
Updated site page: https://www.econologie.com/legnobloc-par ... olant-bbc/
0 x
Do a image search or an text search - Netiquette of forum
-
- Similar topics
- Replies
- views
- Last message
-
- 23 Replies
- 7039 views
-
Last message by laundry
View the latest post
26/09/22, 18:38A subject posted in the forum : Heating, insulation, ventilation, VMC, cooling ...
-
- 4 Replies
- 23979 views
-
Last message by Brisay
View the latest post
05/06/15, 15:28A subject posted in the forum : Heating, insulation, ventilation, VMC, cooling ...
-
- 0 Replies
- 5485 views
-
Last message by vegaman
View the latest post
24/03/15, 16:14A subject posted in the forum : Heating, insulation, ventilation, VMC, cooling ...
-
- 1 Replies
- 8070 views
-
Last message by Leo Maximus
View the latest post
11/12/14, 13:36A subject posted in the forum : Heating, insulation, ventilation, VMC, cooling ...
-
- 0 Replies
- 4252 views
-
Last message by vegaman
View the latest post
17/08/14, 17:23A subject posted in the forum : Heating, insulation, ventilation, VMC, cooling ...
Back to "Heating, insulation, ventilation, VMC, cooling ..."
Who is online ?
Users browsing this forum : No registered users and 249 guests