SYLVACTIS FX 55, wood wool will kill polystyrene?

[bernardd]

Hello,

I just answered partially: thin insulators work well at high T ° so for "heated" rooms ...

I just did a search on the site, no trace of controversy. It is a new mode of heating ... discussions: -?

Please tell me more, a link will also do the trick :-)

You looked for how because on

I no longer know, I had had some results, but off topic. Anyway thank you very much.

I knew that a thin insulator worked in radiation and not in conduction (aluminum conducts 10 times more than steel, almost :-). But I thought that radiation played a more important role, because for example the windows lose a lot of radiation. But since I never took the time to check the numbers ... :-(

Fortunately I discovered your forum :-)

Otherwise, still no response from actis regarding the products used for the fireproofing of the SYLVACTIS 55 FX ...

[Christophe]

1) Regarding thin insulators, we found even better today: https://www.econologie.com/forums/isoler-des ... t8971.html see 1st message from aerialcastor who put a link to this very interesting .pdf: INITIAL THERMAL PERFORMANCE OF REFLECTIVE THIN-PRODUCTS by CSEC (Belgian equivalent of CSTB)

2) Regarding fireproofing I think it is weak or even non-existent!

On the notice in .pdf in the 1st message, it is clearly indicated:

Chimney flues, inserts, heat recovery units, lighting

low voltage and other intense sources of heat

Fire safety protection around the chimney flue is provided in DTU 24.1 and 24.2. The 20 cm reserve (fire gap) must be insulated with a bare insulation classified Euroclass A1. SYLVACTIS 55 FX insulation being classified E, never use it to insulate a chimney, an insert or a heat recuperator, and in general of any heat source higher than 80 ° C.

If like me this classification tells you to see nothing: http://www.protectionincendie.com/class ... lasse.html

# Classes E, EFL, F and FFL are reserved for combustible products whose contribution to generalized ignition is very important.

Keep in mind the passage from the "simple" M classification to the Euroclass classification is a blatant example of "how to make things complicated and incomprehensible when you could make things simple before and thanks to Europe"!

It's so complex that I made it a subject with 1 .pdf document: https://www.econologie.com/forums/classement ... t8974.html

[bernardd]

Thank you for these documents! So the air knives are essential, but with 2 blades of 2cm area, we quickly arrive at thicknesses corresponding to conventional insulators.

Which moreover are most often made up of bubbles to avoid convection: a reflective layer should be projected inside the bubbles of conventional insulation ...

In fact, this is exactly the principle of the thermos bottle, which we find in labs under the name of http://fr.wikipedia.org/wiki/Vase_de_Dewar

If we put metallized surfaces on the interior faces of double glazing, we would have the same result too, but it would be less good for the view :-)

[Christophe]

Thank you for these documents! So the air knives are essential, but with 2 blades of 2cm area, we quickly arrive at thicknesses corresponding to conventional insulators.

Toutafait and the cost of lathing to make these 2 air knives is surely far from negligible!

We can develop this rather here: https://www.econologie.com/forums/isoler-des ... t8971.html

[bham]

If we put metallized surfaces on the interior faces of double glazing, we would have the same result too, but it would be less good for the view :-)

And yet this is now what exists in low emissivity glazing, a priori in all current double and triple glazing.

[Christophe]

Another French wood fiber product: Isonat + a new natural insulator based on wood fibers and hemp from Buitex, http://www.buitex.com/



Price unknown.

Product presentation:
https://www.econologie.info/share/partag ... JooSxR.pdf
Company presentation: https://www.econologie.info/share/partag ... JdPGyl.pdf

[Sim's]

Good evening
an insulator cheaper than polystyrene ...
It's funny ... actis who makes this ...
wouldn't it be brown tinted cellulose wadding to make it look like wood wool?
Knowing the past of the com de actis about the marvelous perfos of their insulation of the space "thin before having left the essential air gaps" ... it would not surprise me that it is cotton wool cellulose transformed into panel sold under the name of wood wool to be more on the wave of what sells.
Finally, if the details are there, I would not say that it is shit. If it is not expensive ...

[Lietseu]

Has anyone seen if it was "termite resistant?"


If-no it's great, thank you Tophe !!!



Meow

[Superform]

I sent an email to actis to find resellers around my home, nothing received yet ...

[tuttikullikum]

Good evening
an insulator cheaper than polystyrene ...
It's funny ... actis who makes this ...
wouldn't it be brown tinted cellulose wadding to make it look like wood wool?

Looks like I have a sample and there are no white fibers!