Home insulation from the outside

[Woodcutter]

[...] close these boxes externally and vertically by a rain shield, perhaps from the under-roof screen of which I have some falls and add the cladding but without space between rain shield and cladding. [...]

I'm not sure it's a good idea ...

Hi Bucheron, what do you think is a good idea?
The lack of space or the use of the roof screen (it is HPV Siplast VP'X >>> permeance value Sd = 0,04 m)?

Tax credit, 25%? You're sure ? shit, I need to review my info.

Not putting space under the siding is not a good idea (see my message above).

40% under two conditions: house built BEFORE 1977, and work carried out before the end of the second year after purchase.

Your roofing screen has values ​​that I think are absolutely correct.

[bham]

Thank you for your answer

Not putting space under the siding is not a good idea (see my message above).

Yes but you say:

The air space just under the siding serves to keep it in good condition: it allows the wood to dry when it is wet.
With layers that allow water vapor to pass through, there is no need to have a "space" ....

So with my HPV screen that lets water vapor through, there shouldn't be any need for space, right?
And the inside of a siding placed horizontally is unlikely to get wet right? Wet yes but wet?

Your roofing screen has values ​​that I think are quite correct.

You mean correct for what I want to do, ie put it on a wall under siding?

40% under two conditions: house built BEFORE 1977, and work carried out before the end of the second year after purchase.

Well yes it's like the windows, it's really big smart, as if we could do everything in the two years of the purchase of the house ..... band of cons

[Woodcutter]

Thank you for your answer

Not putting space under the siding is not a good idea (see my message above).

Yes but you say:

The air space just under the siding serves to keep it in good condition: it allows the wood to dry when it is wet.
With layers that allow water vapor to pass through, there is no need to have a "space" ....

So with my HPV screen that lets water vapor through, there shouldn't be any need for space, right?
And the inside of a siding placed horizontally is unlikely to get wet right? Wet yes but wet?

There is no contradiction in my remarks: the space under the cladding is not used in any way for the diffusion of water vapor through the wall: it is used to increase the life of the "raw" cladding (which can getting wet...).

The siding placed horizontally keeps a little less well than that laid vertically ...

Your roofing screen has values ​​that I think are quite correct.

You mean correct for what I want to do, ie put it on a wall under siding?

Sd values ​​allowing good diffusion towards the outside of the water vapor and, I suppose, rain shield approved for direct contact with the insulation (it is often linked).

40% under two conditions: house built BEFORE 1977, and work carried out before the end of the second year after purchase.

Well yes it's like the windows, it's really big smart, as if we could do everything in the two years of the purchase of the house ..... band of cons

Well now with eco-PTZ, it's a little easier to do everything at once ...

[helium]

insulation work must be done within 2 years
but also APRES PTZ agreement ... on estimate
I had a little problem with my bank who first refused me the loan ... in June (coupled with the purchase of the house)
then announces in September that the windows installed in June
can no longer appear ... on September request
grrrrrrrrrrrr

[the middle]

Hello,
For those who like "green" insulation, here is a link, which explains quite well a less chemical technique (external insulation)
http://www.apper-solaire.org/chanvre/chanvre.html

[helium]

taxes do not make gifts !!!
siding tax credit

lumberjack:
40% under two conditions: house built BEFORE 1977, and work carried out before the end of the second year after purchase ...

yes in theory but by the way see them
to drop off my pretty blue file
my 40% tax credit was cut ... by 70% !!!
according to the public treasury we can only register
the price of the insulation and its installation ...
wood is not considered insulating ...
despite the fact that the insulation alone would not hold on my walls

it's stupid !!!!
NB http://www.developpement-durable.gouv.f ... b10-09.pdf
there are several possible readings

Facade or gable walls. Only the insulation of existing walls opens
right to the tax credit. The construction of a second wall, with
installation of an air gap between the two walls, is not eligible for
the tax benefit

[dedeleco]

Very useful and informative, thank you for this information.

Result, there will be almost no isolated houses correctly seen the prices, as long as the oil does not explode or another catastrophe, like a new Chernobyl !!!

[Obamot]

Excellent Elio, thank you for the link, really very useful and idea to dig.

[helium]

You're welcome...
I have certainly just "lost" 3000 € so I "share"
NB: we will see what my mail gives to the taxes ?!

[Christophe]

It is unfortunately frequent but whose fault is it?

Maybe those who change the rules of the "game" almost every fiscal year, so obviously nobody is there ...

Read this topic dedicated to this "phenomenon": https://www.econologie.com/forums/france-sub ... t5516.html

There are also many professionals who are not aware of the exact credits and premiums and who tend (voluntarily or by ignorance) to inflate them, to better win the contract obviously ...