Outdoor plasterboard

[bay]

Why don't more people use water-repellent breathable wind barriers (polypropylene etc) instead of exterior gypsum? It is much easier to handle and seems to work excellently! Probably cheaper too!

 

[MathiasS]

Why don't more people use water-repellent vapor-open wind barrier (polypropylene, etc.) instead of exterior gypsum? It's much easier to handle and seems to work great! Probably cheaper too!

Last time I checked, the roll-out wind barrier was much more expensive than gypsum. So the answer is probably that simple!

 

[JKPK_peter]

how can gypsum be cheaper than wind barrier paper?

 

[Mats]

It is possible to lower the price on duk. For me, it became the same price on duk as asfaboard and duk is "somewhat" more convenient.

 

[MathiasS]

how can gypsum be cheaper than wind paper?

I don't know. I seem to recall that it was Icopal Vindy I was looking at and it was expensive. But maybe my memory is failing?

Paperboard (AC350) is cheap, but here we were talking about the equivalent of Windy.

 

[Immobil]

Paper pulp (AC350) is cheap, but here we were talking about the equivalent Windy.

I give 9.19 SEK/sqm for Windy.

 

[bay]

It seems crazy to lug up large, heavy drywall sheets, which are also sensitive to moisture, when you can just cover the house with an easy-to-handle fabric. Yet, drywall seems to be the most common choice. Strange!?

 

[David]

Some disadvantages of products like Windy?

Best regards
David

 

[jonten]

The outer gypsum can have a stabilizing effect before putting up the inner gypsum. This is mostly during the assembly phase and can be solved with diagonal braces as an alternative.

//Jonten

 

[ByggaNytt]

My outdoor gypsum (Norgips) has been up for over 2 years now and the only visible "issue" is a few black spots (mold) on the outer paper. However, I am taking it down and replacing it with new outdoor gypsum as the actual exterior panel goes up - feels better that way but it absolutely doesn't seem necessary.

http://www.familjenlindstrom.se/images/byggahus/stomme/utegips.jpg

 

[MathiasS]

Any disadvantages with products like Windy?

Best regards
David

Does it withstand water like outdoor plaster does?

 

[Immobil]

Can it withstand water like outdoor plaster does?

8) Absolutely!

 

[David]

I spoke with Gyproc and our supplier today about this, and it seems we will go with the new version of U-gips after all. It's more stable than Windy, and since the surface is smoother than the old U-gips, there shouldn't be any problems.

Best regards,
David

 

[Immobil]

More stable than Windy and since the surface is smoother than the old U-gips, there should not be any issues.

: If you have weak wall studs, you should go for gypsum. ;D

 

[David]

Who needs studs? We'll glue the facade directly onto the insulation. 8)

Best regards,
David