[해외] 더블 윈도우 파사드 시스템 [ LOVE architecture and urbanism ] Karmeliterhof

[내이처]

이번 프로젝트는 그라츠시에 위치한 지방산하기관의 오피스 빌딩

리노베이션로 다음과 같은 사항을 목표로 진행된다.

1. 에너지 효용성을 높인 건축적 파사드

2. 기존공간들의 현대화; 워크 스페이스의 퀄리티 확보,

접근성 확보, OIB  규정에 적합한 소방시설 계획

3. 각 공간들 간의 효율적인 프로그램 분배 및 조닝을

통한 기능적인 사무공간 구축

이러한 건축계획의 목표는 다양한 형태로 리노베이션 되며,

그중 그라츠 지방의 전통적인 건축적 특징을 토대로 하는

3차원 다이나믹 파사드 인 '그라져 스톡'가 파사드 디자인을 완성한다.

바닥에서 천장까지 열린 윈도우 시스템은 광장으로 향한 뷰를 확보하는

동시에 태양의 직사광선 유입을 방지하는 각도로 비틀어져 설계된다.

여기에 외부로 돌출된 윈도우의 측면은 내외부의 자연환기를

-공기순환을 통하여 윈도우 내에 갇힌 열에너지를 순환,

온도를 낮추는 개별적인 이중 외피시스템- 유도함으로써

내부환경을 쾌적하게 유지한다.

최소한의 건축을 통하여 지역적 맥락의 연결과 필요한 공간의

기능적 확보는 이번 프로젝트에서 우리가 주목해야할 건축적 특징이다.

reviewed by SJ

The project, an office building of the Landesimmobiliengesellschaft (provincial real estate department), is situated in the heart of Graz’s old town.

The project goals were to adapt and renovate the building and to add annexes that met the following objectives:

1. Upgrade the facades both architecturally and thermally
2. Modernize and adapt the existing buildings
- improve workplace quality
- offer complete accessibility
- adapt to new fire protection OIB-regulations,
3. Enhance the building components connecting the buildings to form a closed, functioning complex

Architects: LOVE architecture and urbanism
Location: Karmeliterplatz, Graz, Austria
Design Team: Martin Brischnik, Peter Goetz, Andreas Perchinig, Sigrid Derler
Area: 9,855 sqm
Year: 2011
Photographs: Jasmin Schuller / Visual Entertainment

Client: LIG Landesimmobiliengesellschaft Steiermark

The existing building complex consisted of three buildings of very different construction quality and from different time periods:
- Karmeliterplatz 2, an office building from the late 1960s, which was seen as a foreign element after the new design of the square in 2005
- Karmeliterplatz 1, a landmarked building from the early baroque period
- Paulustorgasse 4, a building from the late baroque period, which was significantly altered in the 1950s (i.e. new roof, one wing and annexes in the courtyard)

The following goals guided the design of the new buildings and the modifications made to the existing structures:
- Uncover and expose the valuable old building structure
- Develop a new design to replace or incorporate the modifications from the 50s and 60s, which would link with the new construction to restore the valuable closed layout of the earlier design

The “dynamic facade” / Karmeliterplatz 2 Renovation

The renovation was based on the Graz tradition, which its characteristic three-dimensional, “dynamic facades” (created with a special plastering technique) and typical “Grazerstock” windows (re-interpreted with contemporary methods):

The ceiling-high window casements (mounted in front of the facade at a slight angle towards the plane of the facade) face the square and therefore reflect by turn the activities in the square, the surrounding building fronts or the sky in different refraction.

Functionally speaking, the facade is a climate facade, a double-skin facade with a fixed glass front made of solar control glass and a circumferential frame that features ventilation openings at the bottom and on the sides. Sliding doors are mounted towards the interior and form the actual spatial enclosure.

Opening the sliding door wings creates a natural air exchange. This natural exchange is supported by the mechanical night ventilation of the rooms and leads to a very effective room cooling. Experience has shown that this prevents overheating in the summer and that the working climate remains pleasant during the day. Moreover, the double-skin facade functions as a winter garden and is furnished with plants.

The new roof landscape

The “bent” roof of the annex is folded over the renovated roof structures and new building components around the courtyard. Thus, the historic tiled roofs are completely preserved and contrast with the new roofing.

The previous alterations and additions were removed from the valuable Paulustorgasse 4 and Karmeliterplatz 1 buildings, thereby exposing the historical structure and restoring the original room layout to the greatest possible extent.

from  archdaily