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

[hul]

yet another thing that shows you don't really have a clue.
störläkt is used for both air circulation and moisture to be able to run and not accumulate on the roof.

yeah exactly, that's what I'm saying.
if it's needed on the roof, why wouldn't it be needed on the wall?
what's the difference?

 

[hul]

another thing that shows you're not quite in the know.
störläkt is used for both air circulation and moisture so it can run off and not collect on the roof.

May I ask you something?

If you were to install panels on your house, would you install strö- och bärläkt or just bärläkt?

 

[hul]

Here are some articles that mention how important it is to have a wide air gap.

two quotes about the articles:

"A well-ventilated, drained, capillary-breaking, and pressure-equalizing air gap should have at least one layer of vertically standing battens, creating a minimum 20 mm wide air gap where water can freely run downward and then be directed out of the construction. Water running out of the air gap should be directed out and away from the foundation with the help of a base flashing or equivalent. It is also of utmost importance that the air gap is well-ventilated. The high ventilation is needed to dry out the moisture that has penetrated the air gap and possibly leaks further into the wall. A well-ventilated air gap is obtained by ensuring the minimum 20 mm wide air gap, created with vertically standing battens, is also open at the top."

"Only horizontally lying battens, or the air gap created by horizontally lying battens in combination with a cover or covered batten panel, is deemed not to create sufficiently good conditions for adequate ventilation and for water to freely run downward and be directed out of the construction. Studies conducted show that a horizontally positioned batten with large, well-perforated holes can create a well-ventilated air gap."

They also equate in one of the articles not having a wide air gap with a single-stage sealed façade, which I said and several expressed was completely incorrect

https://www.villaagarna.se/Global/Påverka/Inläckage i träregelväggar 2015-09-01.pdf

http://www.fuktsakerhet.se/sv/fakta/Documents/SP-Info_2008_69.pdf

http://www.svedentra.se/wp-content/uploads/2015/01/Dalapanel_Monteringsanvisning_Ytterpanel.pdf

http://www.bygma.se/media/68549/Byggbeskrivning_Utvandiga_paneler.pdf

 

[hul]

Here are the conclusions S. Olof Mundt-Petersen, Ph.D. Civ. Eng., reached in his research regarding moisture-proof frame walls:

"It is possible to build moisture-proof wooden frame walls provided that a series of measures as described above are taken, to ensure that water does not penetrate the construction and that the water that does penetrate has the opportunity to dry out.

This is mainly done by ensuring that the house:

• - Has a well-ventilated, drained, and capillary-breaking as well as pressure-equalizing air gap with vertically standing battens, which is open at the bottom and top. Infiltrating water should also be able to be directed out of the air gap away from the house, and moisture should not be able to be ventilated into other building parts.
  
  
• - Has diffusion-open insulation materials, primarily in the outer parts of the walls. In the outer parts of the construction, moisture-resistant diffusion-open insulation materials should also be used.
  
  
• - Does not have moisture-sensitive writing materials far out in the construction, especially not wind-stabilizing gypsum or magnesium oxide boards.
  
  
• - Is built under a tent or other weather protection. In the construction of prefabricated houses, this should occur during dry weather without the risk of rain until the underlay roof or equivalent is laid."
  
  Now, I actually think it's time for those of you who say that vertical battens aren't needed, ventilation occurs in corner boards, ventilation via the panel, to present something that supports this.

 

[SBH]

May I ask you something?

If you were to install panels on your house, would you install battens and counter battens or only battens?

on façade, I don't install any battens

 

[hul]

on the facade I do not install any furring strips

how do you respond to my posts above where various researchers have stated that they are needed to create a moisture-proof construction, do you know better or?

 

[SBH]

how do you feel about my posts above where various researchers have stated that they are needed to create a moisture-safe construction, you know better or?

I base my knowledge on the moisture-damaged facades I have seen. which have been done according to all the rules and advice from research.

 

[hul]

I base my knowledge on the moisture-damaged facades I've worked on, which were done according to all regulations and research advice.

Yes, but you have to be able to change when new research comes to light.
Do you still build single-layer sealed stucco facades just because you've done so before and it was according to all advice and findings? No, of course, you change.

S. Olof Mundt-Petersen, Ph.D., Civil Engineer, states in his article that it's recently been found that moisture penetrates further into wooden facades than previously thought, requiring different measures.
He mentions width air gaps as an important measure and that horizontal battens plus slope via the panel are not sufficient.
Can you just quickly read through the article so we can continue the discussion afterwards?

 

[SBH]

Sure, but you have to be able to change your mind when new research comes in. Are you still building single-layer sealed rendered facades just because you've done it that way before and it was according to all advice and findings? No, of course, you change your approach.

S. Olof Mundt-Petersen, Ph.D. Civil Engineer, states in his article that it has recently been discovered that moisture penetrates further into wooden facades than previously thought, which requires other measures. He mentions the width of the air gap as an important measure and that horizontal battens plus incline via the panel are not sufficient. Can't you just quickly read through the article so we can continue the discussion afterward?

if I am doing it in a way that has been dry for several years, should I then change the method because research says do it this way.

 

[hul]

if I do it in a way that has been dry for several years, should I then change the method because research says do it like this.

Have you removed the panel on all the houses you've built and checked inside the walls? Or how do you know they are dry?

Just the houses you've built might have managed for various reasons, well protected, haven't been in a storm, etc.
But it's enough if just one house in the future isn't, and then it's good that you have secured it when you know it's a risk construction.

But that's the construction industry in a nutshell, it's always worked this way, so why change?

May I ask what you work with, are you a carpenter?

 

[SBH]

Have you removed the panel on all the houses you've built and checked inside the walls? Or how do you know they are dry?

Perhaps the specific houses you've built have managed to stay dry for various reasons, like being well-protected or not being exposed to storms, etc.
But all it takes is one house in the future that doesn't, and then it's good to have secured it when you know it's a risk construction.

But that's the construction industry in a nutshell; it's always worked, so why change?

May I ask what you work with, are you a carpenter?

I work for a larger company in the construction industry.

 

[hul]

I work for a large company in the construction industry

Title?, Education?

 

[SBH]

Title?, Education?

what do you work as? for how long?

 

[hul]

what do you work as? how long?

Site manager, civilingenjörs degree from Chalmers University of Technology 12-15 years ago.

Now please feel free to respond

 

[SBH]

Site manager, Master of Science in Engineering from Chalmers University of Technology 12-15 years ago.

Now you are welcome to respond

ok. I understand. no point in trying to explain to you then