outdoor gypsum or asphalt board

[John J]

The very word "utegips" gives me chills.

Gypsum should be inside where it's dry and nice, not outside in the cold and moisture.

I have several times seen outdoor gypsum that has been damaged by a winter outside and would definitely not want them in my walls with the mold risk it involves.

Many types of mold feed on lime....

 

[Enk Projektet]

We have Asfaboard as the outer panel, something that's quite common from renovations done in the 70s. It has held up well over the years, although it also has a painted surface layer.

Absolutely correct...it was common to nail battens with about 20cm spacing so that it looks like panels. A bit of Falu red paint and it's done

I personally only use windbreaker...1-story house with a loft and without plaster...

 

[injonil]

I only use old classic wind barrier paper on my extension. Once you have the air gap battens up outside, it withstands strong winds and also lasts through a winter.

 

[pbengtsson]

The word "utegips" gives me the chills.

Gypsum should be used indoors where it is dry and nice, not outside in the cold and damp.

I've seen outdoor gypsum damaged by a winter outside several times, and I certainly wouldn't want them in my walls given the mold risk involved.

Many types of mold live on lime....

What do you use then?
When erecting a house frame, it's great to get the gypsum on, then you can choose to work outside or inside depending on the weather. I can guarantee that outdoor gypsum withstands almost anything within a reasonable timeframe (3 months?). The optimal setup is to put on exterior insulation and wind barrier (not "vindvåv":blushing, the wind barriers come in various types and the toughest ones can withstand months of rain and moisture.

 

[John J]

What are you running then?
When erecting the frame of a house, it's great to get the drywall on, then you can choose to work outside or inside depending on the weather, I can promise that the exterior drywall withstands most things within a reasonable time (3 months?). The optimal solution is to get the external insulation and house wrap (not wind wrap:blushing on, there are different types of house wrap and the toughest ones can withstand months of rain and moisture.

Always use T-Vind Super and if it has to be boards, it’s Minerit or Asfabord.

Would never come up with the idea of using drywall outside.

 

[andersmc]

I only use traditional wind paper on my extension. Once you've put up the ventilation batten outside, it withstands strong winds and can also last over a winter.

There are many things that can happen you can't imagine. I had a smaller house where the gable ends weren't finished before winter, so they stood with the wind paper exposed. No problem with rain or wind, but there were some birds that went crazy for it and pecked and tore my wind paper to pieces.

 

[Anders_Nilsson]

Does it provide better stiffening with screws than nails in asfaboard? If so, which screw - assembly screw or drywall screw? Can asfa withstand the conical head of a drywall screw or does it get crushed? Or is a 30-40 mm nail sufficient?

/Anders

 

[John J]

Does screwing provide better stiffening than nails in asfaboard? If so, which screw - assembly screw or drywall screw? Does the asfa hold for the conical head on the drywall screw or does it get pressed apart? Or is 30-40 mm nail enough?

/Anders

Everything holds a little better with screws.

If I can screw, I always do.

 

[Ola78]

Does using screws instead of nails provide better stiffening in asfaboard? If so, which screw - mounting screw or drywall screw? Does the asfa withstand the conical head of drywall screws or does it break apart? Or is it sufficient with 30-40 mm nails?

/Anders

This screw is made for gypsum, wood, and mineral boards outdoors http://www.hilti.se/holse/page/module/product/prca_rangedetail.jsf?lang=sv&nodeId=-54031