Bogafjell

       

Project description
Bogafjell is one of the largest development areas in Sandnes and will have 1500 residents when it completed. The Norwegian Wood site S3 that is located on the top of Bogafjell has great qualities related to the local area with customized play areas and large hiking areas. The site is situated towards North with an inline giving a perfect view of Stavanger, Sandnes and parts of Ryfylke.

The aim is to develop a project that has high architectonical qualities, where rational constructional methods will be joined together with innovative, diverse and locally adapted architecture. Focus will be on material use, energy use, health and building tradition.

The project area (area S3) is divided into two subdivisions that will be developed separately. This is a presentation of subdivision 1 that consists of 10 single unit-dwellings in a row, 14 terrace houses, duplexes and a parking house.

Constructions and material use
The project aspires to locally altered materials and productions that will ease transport and hence favor the environment.

The wall structure is wooden frames work that and are isolated with mats of isolation made of recycled fibre disposal (Ultimat). Outside walls are coated with raw ore pine from Rogaland. The roof is made of I-beams (Masonite) and isolated with 40 cm insulation. Similar beams are also used in-between floors. The windows are of type N-TECH Passive delivered by Nordan (U-value of 0.7).

The kitchen and wardrobe interior are in wooden materials from a local producer.
The foundation walls are built in concrete to handle the inclined ground.

Parking basement has load-carrying walls and floor surfaces in concrete. The interior coating of the basement is in raw ore pine.

According to Norwegian Woods quality criteria’s, will 10 of the most frequent used products in each project underlie an environmental judgment relevant to ECOproduct. This evaluation is not momentarily available, but will eventually be presentable for all 10 products.

Energy
The residents are initially planned as passive houses, but conclusions have come to that a more moderate demand to the energy requirements will favor the total quality requirements of the residence.

At this point of time, the estimation of the two most demanding residents is respectively 75 and 77 kwh/m2/year gross weighted energy. The planned solution is a heat pump with a 180-liter domestic water processing integrated. This pump will serve the domestic water supply and the heating for both floors.

The ventilation system has rotating heat exchanger with a low-energy engine from a local producer (System Air). The installation has a recovery impact of 80 %.  

Universal design
The project evolves from an existing development plan. This plan does not fulfill the demands for universal design. The project is therefore only developed according to the quality requirements for universal design internally within the building sites. Public areas and private shared spaces are not universally designed. Only 10 residents are planned in accordance to norms for life cycle.