Does Isover's spacer sleeve provide an air gap (facade board)?

[SBH]

Reasonably quite a lot when one chooses to use one of their systems, which this thread largely discusses, hence the title "Does Isover's spacer sleeve create an air gap (façade panel)?"

You are even the one who has referred to their installation documentation and advocated that the supplier of their system knows best

okay so isover is always involved in every construction drawing that is made. good to know

 

[hul]

So it starts to make sense a little now after this enormous number of posts i.e. #267, 268 that what seems almost obvious to a type of person like SBH should be so difficult for some to accept is strange. That is, with the best understanding under the right conditions, it is possible to build with these boards and spacers without any extra vertical studs if you don’t need them for other reasons. And completely without problems or elevated risks..

no, you can't do it the way you think.
They are a risk construction that CAN lead to damage and if you know about them, you should strive not to build that way when there are solutions to the problem.

Slab-on-ground with insulation above the slab is also a risk construction that was stopped because some houses became moisture-damaged, but far from all.
According to your reasoning, one would continue with this because it worked sometimes even though it was known to be a risk construction.

Now we know better and no longer build slab-on-ground that way and the same applies to two-stage sealed facades.
A wooden facade with only horizontal battens is not two-stage sealed, it's as simple as that.

 

[hul]

okay so isover is always connected with every k-drawing that is made. good to know

I don't understand what you're talking about, please clarify.

 

[SBH]

Don't understand what you're talking about, you'll need to clarify, thanks.

good that you're informing about it

 

[Nyfniken]

So. Now I have emailed their support.

2 working days, no response.

Anyone want to bet?

 

[Nyfniken]

For the past few days, I have received a response. The answer is also from what appears to be a senior developer. However, I need access to a computer to piece together the dialogue. Give me a few days until I'm back home.

The bidding is open!

 

[GK100]

What about the bidding?

 

[Nyfniken]

Whether vertical air barriers are needed. According to Isover.

 

[GK100]

Ok then you won't get a bid, thought it was about SBH and hul.

 

[useless]

I think they gave a convoluted politician's answer that creates more confusion than clarity.

 

[RoBo]

Exciting I think that vertical air gaps are not needed.

 

[Nyfniken]

So. Now I have emailed their support.

Finally!

This is what my question looked like:

"I am reading information about your facade panel online where the following can be read:
http://www.isover.se/isolera-yttervagg-utifran-med-ett-lager-isolering

"Air gap behind wood cladding
Ventilation behind wood cladding is as important as behind other facade materials. First and foremost, you should be careful to choose lumber of good quality. The end grain of the panel should be beveled outwards to allow water to run off more easily. The joints should be staggered and evenly distributed over the surface. A suitable size for the battens is 28 x 70 mm, which creates an air gap that helps any intruding water to dry out.

There are different panel designs. For vertical panels with cover battens, a baseboard that is at least 22 x 175 mm and a cover batten that is at least 19 x 38 mm are used. Here, the nailing rule is set horizontally, which means no air gap is formed. By placing a batten vertically before setting the horizontal nailing rule, an air gap is created."

But in the installation instructions, there is no vertical batten mentioned. What applies? Are vertical air gaps needed behind the panel?"

-----

After a few days, I received the following response (a bit off-topic, I think):

"Sorry that your email has remained unanswered during our holiday.

In the work instructions, we only show the example with cover panels on horizontal battens.

If you need horizontal battens, for example, in connection with horizontal panels, it is done in the same way with sleeves as support."

-----

So I clarified my question:

"I'm not sure I understand the answer. The text on the website states that horizontal nailing battens are not sufficient (for vertical panels).

How is ventilation of the panel guaranteed with only horizontal gaps?"

-----

And then I received the following response:

"There will be weak ventilation in the vertical gaps between the boards in the first layer of the panel."

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Greetings and signatures have been clipped, otherwise authentic.

 

[Nyfniken]

I must admit that Isovers' response completely contradicts my own convictions, and as the grumpy old man I am, I will stubbornly insist that they are wrong.

 

[hul]

I must admit that Isovers's answer goes completely against my own conviction, and as the grumpy old man I am, I will stubbornly insist that they are wrong.

But it seems like Isover is quite clear that there should be vertical and horizontal battens to create an adequate air gap.

 

[Nyfniken]

But it seems like Isover is quite clear that there should be vertical and horizontal battens to create a sufficient air gap

That's your interpretation.