Needs of bioclimatic home advice

[Woodcutter]

[...]
The arch that I saw advised me against this process, because it said that at the end of 10ansans there were riques of settlement and the creation of thermal bridge

Quite wrong if the products used are good and the know-how of the installers to the point ...

[...] I was also told to use two layers of insulation of different density of wood wool. to reduce the cost.

Mwoué ... The fact of using two layers is especially interesting to cut the thermal bridges of the supporting framework.

[...] I am next to Bordeaux, how to find the sufficient thickness to have the best iso,

The question should not be asked in these terms ...
You have to set goals. For example, if you want your house to correspond to a BBC building, you will need a resistance in the walls R> 5 and in the Roof R> 7.5 approximately.

[...] For windows, I thought that the leaves were problematic in their attachment to the outer insulation.

Yes, unless you have a reported bearing structure.

[Woodcutter]

[...] But let's move on, for the insulation, the values ​​that you give (20 cm in wall and 40 cm in roof) are values ​​in my opinion a little important for Bordeaux ... For reference, a house of the architect Jean-Louis Moulin in Trièves (Alps> 850 m):
+ 200 mm cellulose + wood wool panel 25 mm in wall
+ 240 mm cellulose roof + wood wool panel 25 mm
= 34 kWh / m² / year of consumption heating and hot water!

The house is not passive, but in the middle of the mountains, it already has such a performance that the smallest wood stove (7 to 8 kW) are almost too powerful!

Do you know Jean-Luc?

He's a friend from here ...

(by the way, the Trièves is a "Territory", the town is Saint Sebastian)

[...] I agree to isolate rather than heat, it's better, but 40 cm roof in Bordeaux? Even without calculations, I think these are values ​​that ensure certain passive performance in Bordeaux

If he can invest a little more, why not?

[...] For the rest, I'm completely the idea of ​​aerialcastor for inertia: you already have bricks inside (wall), it's not bad, but you can complete with floating slabs where there is no parquet, and solid brick walls (compressed mud bricks ...) or with clay panels... it will limit the risk of overheating. [...]

Not better !

[tararika]

thank you lumberjack for all your answers.

Yes, it is true that the monomur of 30 will probably be better than the brick type A, moreover phoning a hardware store I discovered that the price is the same.

So that gives me a R = 2.6 remains to find the same R for isolation.
if I take 160 KG / m3 wood wool in 100 mm with a lambda of 0.040 I get a R = 2.5
This panel is rigid, so no need for framing.

For glazed surfaces do you have to avoid sliding windows?


for the partitions, a priori the fermacell is not necessarily a good choice, because it does not create sufficient inertia if I understood correctly.
In terms of cost, and performance, what is the preference for solid bricks, clay panels / plaster tiles?

I am wondering how to calculate the inertial mass sufficient for the living area / climate of the region?

Why are the sliding shutters better than the shutters?

For the floor, the mason offers me interstices polystyrene
with a 5 compression slab cm
a total floor of 16 cm if I understood correctly.
He puts an insulation between the slab and the slab is necessary?

for the glazing he offers me windows in oak or chestnut, what to privilege, what coeff must have the glazing? Is argon indispensable?

thank you thank you and thank you again

[homebbcgironde]

Hello,
I read carefully all your posts on the subject. We are currently analyzing for a construction of a bbc house in Gironde.

The land is acquired and construction must start by the end of the year. In the meantime, I am documenting myself on this inexhaustible and constantly moving subject.

A + for information

[tararika]

Hello,
I read carefully all your posts on the subject. We are currently analyzing for a construction of a bbc house in Gironde.

The land is acquired and construction must start by the end of the year. In the meantime, I am documenting myself on this inexhaustible and constantly moving subject.

A + for information

Where is your land?

What materials will be used and with whom, in self-construction? builder?

thank you soon for other exchanges.

[homebbcgironde]

Hi,

The land is located at the gateway between two seas. It is flat.

we are in the process of making plans with 2 masters of work and a builder.

Everything related to the subjects is being analyzed. I had
contacted a builder in the ain who rode 4 homes with
different processes (monomur, cellular concrete ...)

It appeared that consumption was balanced mainly due to good insulation.

The EFFINERGIE site is well with the BBC houses under construction and the processes used.
I am creating a site to put construction on the web but it is my first.

A+

[tararika]

[quote = "maisonbbcgironde"] Good evening,

we are in the process of making plans with 2 masters of work and a builder.

Is this manufacturer in Gironde? who is he?
do you want to use eco-friendly materials?

Good luck for the future.

[valentmi]

Hello,
a poorly calculated house, even if well conceived, will be unlivable.
For sunshine calculations I recommend Soleili


http://www.sunny-soleili.net/

if you want a Canadian well; GAEA freeware software

[BIOTEK]

Hello,

I take part in this discussion only now because I come back from participative projects where I distilled my advice for free.

Participatory construction sites

In your insulation of walls I do not see the word straw statement?
Does this material put you off?

We build this type of house and the performance of the walls and the rest of the house allow to obtain the BBC label

The wall is made up as follows (from the outside to the inside):

Facade plaster (earth or lime or other) Thickness 10 mm
Fermacell plate H2O Thickness 12,5 mm Lambda 0,17
Rain cover Thickness 0,5 mm
Straw bale Thickness 350 mm Lambda 0,07
Vapor barrier Thickness 0,5 mm
Fermacell Plate Thickness 12,5 mm Lambda 0,32 (This plate participates in the bracing and can then be covered by a coating earth)



R wall BioTeknik: 5,287

[homebbcgironde]

Hi,

we are in the process of making plans with 2 masters of work and a builder.

Is this manufacturer in Gironde? who is he?
do you want to use eco-friendly materials?

Good luck for the future.

The builder is TANAIS. We are waiting for their plan and also to see the house bbc that was built (I find it strange that it does not appear on the site of EFFINERGIE even unfinished I touched them a word)

I am looking at this green material side.
We met a company manager of a green material store located in MERIGNAC mas it was closed when we passed early August. We are going back there at the beginning of September.

For info there will be a VMC double flow and interior insulation. Qaunt heating with solar thermal panel, tannese just talk to me about the thermodynamic balloon for the same performance and lower cost (idea to check ...)

And you build on the Gironde ??