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Appendices

Appendix 1: Description of "normal level"

1. According to Kroth et al. (1991) the total wood consumption in the conventional single-family houses in Germany amounts to 35 m/1000 m space volume. The share of solid wood is 95 percent and that of wood-based panels 5 percent. The volume of 35 m corresponds to 31 m or 13.3 tonnes of oven-dry wood.

2. The space volume has been described by DIN 277/May 1973 and specifies the total volume of house above the ground including walls, ceilings and roof.

3. Based on data given by UN/ECE (1996), the average dimensions of houses in Central Europe are as follows:

4. The single-family brick house dealt with in this study consists of two floors (see Table 4) showing a layout of 136.2 m. The height of the second floor is assumed to be 2.75 m. The space volume calculated according to DIN 277 amounts to 479 m.

5. The amount of wood used in the brick house is calculated as 13.3 m x 0.479 tonnes/m3 = 6.4 tonnes which can be specified as normal level.

6. In Table 4 the real input of wood is 6.5 tonnes which varies less than 2 percent from 6.4 tonnes and can be considered as normal level.

Appendix 2: Energy consumption for mosaic solid parquet, glued

 

Non-renewable energy

Renewable energy

(MJ)

(MJ)

Preliminary stage raw wood

32.18

197.97

Parquet production

64.73

-58.78

Packaging

4.5

0.11

Delivering

3.24

0.04

Laying

32.91

-1.65

Sealing

22.6

0.48

Renovation

54.7

1.05

Demolition

4.28

-44.37

Total

219.14

94.85

Energy consumption

313.99

Appendix 3: Energy consumption for a two-layer prefabricated parquet, glued

 

Non-renewable energy

Renewable energy

(MJ)

(MJ)

Preliminary stage raw wood

44.32

224.34

Parquet production

136.95

-62.41

Packaging

3.99

5.49

Delivering

3.48

0.04

Laying

32.16

-1.55

Sealing

25.05

0.52

Renovation

27.35

0.52

Demolition

4.87

-43.42

Total

278.17

123.53

Energy consumption

401.70

Appendix 4: Energy consumption for a three-layer prefabricated parquet, glued

 

Non-renewable energy

Renewable energy

(MJ)

(MJ)

Preliminary stage raw wood

110.05

197.97

Parquet production

99.21

-58.78

Packaging

5.63

0.11

Delivering

4.17

1.04

Laying

7.07

-1.65

Sealing

26.06

0.48

Renovation

26.83

1.05

Demolition

1.48

-44.37

Total

280.49

301.64

Energy consumption

582.13

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