straw houses design kovacarchitekt
TRANSCRIPT
Heavy wooden vertical constructions insulated by straw bales
Young Scientist 2015
Influence of using straw bales insulation material on architectural form of the object
Ing. arch. Miloslav KováčProf. Ing. arch. Peter Pásztor, PhD.
Content
- Types of straw bale insulated constructions
- Specification of Physical and constructional schedule
- Heavy vertical constructions
- Architectural review
Light vertical constructions
Ladder/ truss system I-beam system LPVC2
One component system L VTwo by four system
Standard system Individual system
Light system PVC1 Heavy system PVC2
Heavy vertical constructionsPrefabricated vertical constructions
-SoftwareTherm 6.2- Exterior temperature θe Košice -13°C- Interior temperature θi +20°C
- Software Teplo 2010- Boundary conditions STN 73 0540-3 except straw
- Influence of closed cavity- Influence of thermal bridge
-SoftwareTherm 6.2- Exterior temperature θe Košice -13°C- Interior temperature θi +20°C
- Software Teplo 2010- Boundary conditions STN 73 0540-3 except straw
- Influence of closed cavity- Influence of thermal bridge
-SoftwareTherm 6.2- Exterior temperature θe Košice -13°C- Interior temperature θi +20°C
- Software Teplo 2010- Boundary conditions STN 73 0540-3 except straw
- Influence of closed cavity- Influence of thermal bridge
-SoftwareTherm 6.2- Exterior temperature θe Košice -13°C- Interior temperature θi +20°C
- Software Teplo 2010- Boundary conditions STN 73 0540-3 except straw
- Influence of closed cavity- Influence of thermal bridge
- Moisture content effect included- Convection and radiation effect decrease insulation properties 20-50%- Heavy constructions about 20%J.E.Christian (1998), Andersen (2004), Grmela (2012), Atkinson (2008)
Ther
mal
tran
smitt
ance
Cons
truc
tiona
l con
clus
ions
Foundation / plan engineering1. Light I-beam con. 2. Light con. 3. Heavy con. 4. Prefabricated con.
Roof shape/ overhang engineering1. Straw/ thatch 2. Earth/ earth 3. Wood/ wood 4. Prefabricated combination
Window opening details1. Interior opening design 2.Solar house windows shaping
Interior/ exterior façade design1. Revealed construction 2.Openings and niches in insulation layer
- Shape free disposition plan
- Revealed construction
Ove
rall
Arch
itect
ural
con
clus
ions
- Large/ free shape openings
- Revealed construction architectural value (natural trunks)- Better U value compared to similar compositions of others systems. Higher about 0,02 W/m2.K- Possibility of creating niches/built-in furniture
- Demand for anchoring straw bales
- Point load pressure adjusted in foundations
- Demand for additional construction – cladding/ ventilated facade
Thank you
for your
attention