Wall, floor, ceiling, and roof construction more sensible/better?

  • Erstellt am 2014-10-31 11:39:48

MStorm

2014-10-31 11:39:48
  • #1
As a layperson, I find it difficult to compare wall constructions. Actually, many things in the building description are just names and numbers for me, and I lack the real understanding of what should be preferred. Without going into the providers themselves, I would be interested in your opinion here about the respective specified construction of the basic structure from three providers.
In this case, they are Akost, Danwood, and Hagemann.

Attached are the building and performance descriptions from Akost and Hagemann Haus. Unfortunately, Danwood’s is too large!

While, for example, Hagemann Haus does not offer a ventilation system at all due to the diffusion-open wall construction, this is integrated as standard in Akost and Danwood, for example. Well, but what is ultimately the most sensible/healthiest wall construction? Especially when it comes to the construction of the basic structure, I find it incredibly difficult.
 

MStorm

2014-10-31 12:01:30
  • #2
Here are the specifications from the companies in the construction and performance descriptions:

Akost:
Exterior walls
Exterior walls are constructed with 60 x 160 mm timber studs/wooden frames at a spacing of 600/625 mm. On the outside of the studs, windproof, moisture-resistant wood fiber boards and a vapor-open sheathing membrane are installed. The walls are insulated with 160 mm mineral wool, WLG 035. On the inside of the studs, a vapor barrier is installed. After that, battens are mounted onto the studs, forming a 40 mm thick insulated (WLG 040) installation layer. The inside of the wall is clad with one layer of 12 mm wood-based panels and one layer of 12.5 mm gypsum plasterboards.

Interior walls
Interior walls are constructed with timber studs at a spacing of 600/625 mm. In the living areas, the walls are clad with one layer of 12 mm wood-based panels and one layer of 12.5 mm gypsum plasterboards. All interior walls in living areas are insulated with mineral wool.

Interior wall between living rooms
Timber studs insulated with mineral wool, clad with one layer of 12 mm wood-based panels and one layer of 12.5 mm gypsum plasterboards.

Roof construction
AKOST uses roof trusses or rafters as load-bearing roof construction. The under-roof covering is installed with a vapor-open underlay membrane (horizontal joints are glued) and battens as counter- and roof battens. As roof covering, concrete roof tiles in double S-shape are used.

Danwood:
Exterior wall construction
Acrylic plaster on mesh-reinforced base plaster
120.0 mm polystyrene (WLG 040) as additional full thermal insulation and plaster carrier
12.0 mm wood-based panel
180.0 mm timber frame
180.0 mm mineral insulation (WLG 035)
12.0 mm wood-based panel
Vapor barrier PE film
12.5 mm gypsum plasterboard

Interior wall construction
12.5 mm gypsum plasterboard
12.0 mm wood-based panel
120/80 mm timber frame
50.0 mm thermal and sound insulation mineral wool in the timber frame
12.0 mm wood-based panel
12.5 mm gypsum plasterboard

Ceiling in the attic from top to bottom
Concrete roof tiles
Roof battens
Counter battens
Vapor-open underlay membrane
220 mm rafters or wooden beams according to statics for roof trusses
Further in the area of the sloping ceilings to inhabited rooms:
220 mm mineral insulation (WLG 035)
22 mm wood-based panel
PE film as vapor barrier
12.5 mm gypsum plasterboard

Construction of the collar beam ceiling
150 × 22 mm edge plank made of spaced floorboards (5 pieces)
220 mm wooden beam or according to statics for roof trusses
220 mm mineral insulation
22 mm wood-based panel
PE film as vapor barrier
12.5 mm gypsum plasterboard

Hagemann:
Execution of exterior walls ground floor from inside to outside (outside vapor-open)
High-quality Fermacell solid construction boards 15 mm
Vapor retarder
Wood frame construction with installation layer 200 mm
Insulation 200 mm
Wood fiber insulation board 40 mm
Reinforcing plaster with fabric insert
Mineral plaster colored according to color chart

Execution of exterior walls attic from inside to outside (outside vapor-open)
High-quality Fermacell solid construction boards 15 mm
Vapor retarder
Wood frame construction with installation layer 200 mm
Insulation 200 mm
Wood fiber insulation board 35 mm
Tongue and groove sheathing on battens (color according to color chart)
All our woods in exterior areas additionally have a blue stain protective coating.

Interior walls
Wood frame construction approx. 100 mm
Insulation 80 mm
Cladding on both sides with high-quality Fermacell solid construction boards 15 mm

Ceiling in the attic from bottom to top
12.5 mm gypsum plasterboards
Counter battens
Vapor retarder
Beams according to statics
Insulation 220 mm WLG 035

Sloping ceilings in the finished area from inside to outside
12.5 mm gypsum plasterboards
Counter battens
Vapor retarder
Rafters according to statics
Insulation 220 mm WLG 035

Roof truss from inside to outside
As purlin roof according to statics or truss roof (roof load 1.5 kN/m²)
Roof rafters in the eaves and gable areas visible with tongue and groove sheathing on top
Wind bracing straps for stiffening
Vapor-open underlay membrane
Counter battens
Battens
Roof tiles concrete roof tiles (tile red, classic red, dark gray, black, brown)
 

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