About promotion of wood use in public buildings

Based on the "Law Concerning the Use of Wood in Public Buildings" promulgated in May 2010, Yokohama City formulated a "policy on the Promotion of Use of Wood in Public Buildings in Yokohama City" in 2014 to promote the use of wood.
In June 2021, the Law was amended to the "Law Concerning the Use of Wood in Buildings for Contributing to the Realization of a Decarbonized Society" and expanded its scope to include buildings in general, including private buildings. As a result, Yokohama City has also newly formulated the "Policy for Promoting the Use of Wood in Yokohama City Buildings" and will continue to promote the use of wood in public buildings.

Working on the use of wood in public buildings
Encourage private buildings to promote the use of wood and strive to gain their understanding and cooperation.

• Actively promote wooden construction in public buildings.
• Promote the wood conversion of interiors, etc., focusing on areas where citizens are considered to have many opportunities to see. (Entrance hall, reception desk, lobby, corridor (lumbar wall, floor, etc.))
• The wood used is wood and local timber from Kanagawa Prefecture as much as possible.

※Regional materials: Wood produced in metropolitan prefectures and Shizuoka prefectures belonging to the Kanto Koshin region
※If it is difficult to secure timber, domestic timber

• We will also use wood as a raw material for various products such as building materials, equipment and consumables.
• We will take the initiative in promoting the use and dissemination of advanced technologies, and actively disseminate information on the status and effects of such initiatives.

• Policy text (PDF: 107KB)

• Policy on Promoting the Use of Wood in Yokohama City Buildings(Architectural Planning Division Page)

The standards for environmental considerations required for public buildings maintained by the city are defined in the "Environmental Consideration Standards for Public Buildings in Yokohama City," and is promoting the reduction of environmental impact andconservation in the surrounding environment.
In this standard, we determine the amount of wood used in public buildings and promote the use of wood.

• Environmental Consideration Standards for Public Buildings

When building or expanding, use the following amount of wood specified below

In addition, the parts of use and buildings that fall under the following shall not be included in the target floor area at the time of calculating wood consumption (m3/m2).

• Facilities that are difficult to make wooden or woody due to laws and regulations such as the Building Standards Law and facility installation standards.
• Facilities that are difficult to make wooden or wood due to the special characteristics such as the use of facilities, security, and maintenance.
• In addition, there are reasons for difficulty in making wooden or wood.

However, even if it is difficult to make wood or wood, consider the use of wood for parts that are visited by citizens and used for general use, such as building entrances, reception desks, and facilities for visitors, etc. We will strive to make wood.

In order to make the "Policy on Promoting the Use of Wood in Public Buildings in Yokohama City" more effective, guidelines on basic matters when using wood and matters to be considered in maintenance and management.

• Yokohama City Timber Use Promotion Guidelines

We hold seminars and workshops for citizens and workshops for construction practitioners to deepen their understanding of the characteristics of wood, their attractiveness and potential, and to promote the use of wood for buildings. .

• Wood Use Promotion Workshop

We introduce public buildings using wood built in Yokohama City.

• Introduction of Wood Use Cases

Environmental Planning Bureau has established an environmental education dispatch lecture/off site lecture.

• Environmental education dispatch lecture/off site lecture (work using wood learned from carpenters)

※This policy was abolished on the same day as the "Policy for Promoting the Use of Wood in Yokohama City Buildings" was newly formulated on April 1, 2022.

• Policy text (PDF: 122KB)
• Policy Terminology Materials (PDF: 203KB)

• Act on Promotion of Use of Wood in Buildings, etc. to Contribute to Realize a Decarbonized Society (External Site)(Page of Wood Utilization Division, Forestry Agency, Forestry Agency)
• Promotion of the use of wood in government office maintenance (outside site)(Page of Wood Utilization Promotion Office, Maintenance Division, Government Office, Government Office, Maintenance Department)
• About wood from Kanagawa Prefecture (outside site)(page of Forest Restoration Division, Green Administration Department, Kanagawa Prefectural Environment and Agricultural Administration Bureau)