TWO MARATONERS HOUSE
Biro Gašperič / Slovenija
A private home on the outskirts of Ivančna Gorica blends contemporary architecture with nature. Two volumes are joined by a semi‑open zone, while generous glazing frames views of the Stična Monastery and floods the interior with daylight. The result is a bright, open feel and a strong connection to the outdoors. A Shou Sugi Ban façade, wood‑lined interiors and a colourful rammed‑earth feature wall complete a playful yet highly functional concept tailored to an active lifestyle.
Architecture: Biro Gašperič
Contractor: Bauta
Photography: Miran Kambič













Our products are included in the project


Nature Optimo XL(T)
Robust wooden window for harsh weather conditions and the most demanding energy requirements. Solid profiles provide stability even in large formats, with options available in L- and X-shaped configurations. The XLT version uses thermally modified spruce for greater dimensional stability and improved thermal efficiency. An ideal solution for panoramic openings and exposed locations.
Profile dimensions
installation depth
110 mm
visible width
116 mm
Thermal insulation of window (Uw)
Ug = 0,7
0,89 W/m²K
Ug = 0,6
0,81 W/m²K
Ug = 0,5
0,73 W/m²K


Nature Optimo
A balanced wooden window offering high thermal efficiency, clean lines, and great value. It combines reliable sealing, stable performance, and long-lasting comfort. Perfect for family homes and smaller apartment buildings. A wide range of customization options – from wood species and finishes to glazing and shading – ensures a coordinated look inside and out.
Profile dimensions
installation depth
93 mm
visible width
107 mm
Thermal insulation of the window (Uw)
Ug = 0,7
0,92 W/m²K
Ug = 0,6
0,84 W/m²K
Ug = 0,5
0,75 W/m²K


