Valuation of
medieval
churches
Tineke van der Schoor
)
Ezequiel Colmenero Acevedo
Maarten Vieveen
EECHB, Brussels 2016
Towards an integration of
Research project
1. Studies of energy efficient restorations in
project Energieke Restauratie (2012-2014)
2. Database of energy information for all historical
churches in the province of Groningen
3. Case studies of stakeholders valuation of four
churches in Groningen (2015)
1. Nieuw Scheemda
2. Leegkerk
3. Lettelbert
4. Obergum
Conserving identity and energy
RESEARCH PROBLEM
3
Identity
Energy
User comfort
New
functionality
Energy
efficiency
Works of art
Local
identity
Historical
values
Method
• Site visits
• Preparatory questionaire
• (Group) interviews
• Nieuw Scheemda (3)
• Leegkerk (2)
• Lettelbert (4)
• Obergum (1)
• Photo elicitation
• Transcription and analysis of
qualitative interviews
• Results of questionaire and
photo elicitation
Nieuw Scheemda
Lettelbert
Usage
Location
Frequency
Type
Visitors
Duration
Nieuw Scheemda
4 times/ yr
Concerts
50
2 hrs.
1 time/ yr
Religious service (Christmas)
70
1,5 hrs.
Leegkerk
Very often
Events of all kind, including visiting on Sunday
Max 90,
av. 30
2 hrs.
Lettelbert
3 times/ week
Icon painting classes
15
-Occasionally
events
-
-Rarely
Religious services
-
-Obergum
50 times/ year
Marriages, funerals, parties, religious services,
social events, concerts, music festivals
Max 120,
av.20
4 hrs. to
2/3 days
Values - stakeholders
Values Nieuw Scheemda Leegkerk Lettelbert Obergum Age value Somewhat important Important Very important Somewhat important
Architectural value Important Somewhat important Not important Very important
Artistic / Aesthetical value Not very important Important Important Important
Authenticity - - - Very important
Emotional value Not important Not important Very important Not important
Historic value Not important Important Important Somewhat important
Religious value Very important Not important Not important Not important
Spiritual value - - Very important
-Political value Not important - -
-Educational value Not important - -
-Community value Somewhat important Somewhat important Very important Very important
Non-use economic value Not important Not important Very important Not important
-Thermal Comfort
N. Scheemda Leegkerk Lettelbert Obergum
Winter period Acceptable Acceptable
Unacceptable (2) Acceptable (2) Unacceptable Perception Warm (2) Neutral (1) Neutral Neutral (1) Little cold (1) Cold (1) Very cold (1) Little cold
After 30 minutes Id. Little cold
Little cold (1) Cold (2) Very cold (1)
Little cold
Specific areas Gallery warmer Lower area warmer Acceptable in classroom, unacceptable in church area
-Clothing Heavy winter clothes (1) Normal Heavy winter clothes
Summer period Acceptable Acceptable Acceptable Unacceptable
Perception
Warm (1) Neutral (2)
Little cold Neutral Neutral
After 30 minutes Id. Little cold Neutral Little cold
Draughts From North windows From both doors and windows Cold draughts in winter
-Lighting during daytime? Acceptable Artificial light necessary Enough daylighting ? not answered?
Air quality Satisfying Satisfying Bad
Acoustics Acceptable to Good Bad (echo)
