Roofs and Facades Merge
Located on the foothills of Vitosha Mountain in Sofia, ACME is a residential complex consisting of three building volumes accommodating eleven apartments. Using the natural slope of the terrain, the architects have stepped the residential buildings down the slope. The architectural concept focuses on the design of the roofs, which merge seamlessly with the façades and are treated like a fifth facade.
This project is featured in the Swisspearl Architecture #29. Subscribe to our magazine to get the printed issue.
While the upper two stories and roof are clad in Swisspearl panels, the lower two floors are clad in sienna-colored masonry. The smooth, dark Swisspearl panels create a strong visual contrast with the russet textured brick façades. Generous planes of glazing break up the facade planes, afford views, and flood the interior of the apartments with natural light. The third-story windows merge into inclined roof skylights, thus emphasizing the continuation of the upper floor with the roof. By recessing the facades on the end facades, intimate covered loggias have been created. Each apartment has a loggia that overlooks the surrounding garden landscape or Vitosha Mountain rising behind.
By seamlessly continuing the Swisspearl facade cladding as a roof covering, and eschewing an eaves overhang, the archetypal form of “house” has been abstracted and the scale of the houses visually reduced. The wider building has a lower pitch than the two narrower building volumes. Although the buildings differ, they clearly form an ensemble due to the consistent and independent materialization.
A strong & high-performing roof
The reinforced concrete roof structure was protected first with a waterproof, thermal insulating layer and above covered with high-performance Swisspearl fiber cement panels installed on aluminum profiles. Some of the positive attributes of Swisspearl panels include their high level of fire resistance, their frost resistance, and the ability for them to be recycled.
The height of the building is visually reduced by running the roofing material over the eaves’ edge as façade cladding. The smooth, dark Swisspearl panels create a strong visual contrast to the brick façade of the lower two floors.
NICE TO KNOW
Apartment Building ACME
E-Arch Studio, Varna, Bulgaria
Meraner & Hauser, Bozen, Italy
Agnesika Plast Ltd., Sofia, Bulgaria
2018 – 2019
PDF project sheet
Swisspearl Largo Carat Black Opal 7025 (R)
Read more – Swisspearl Architecture magazine
Find more stories in our Swisspearl Architecture #29. Subscribe to our magazine to get the printed issue.