ATLA News On-line
Newsletter Issue 7 No 4  November 1998

Embodied Energy in New Zealand Materials 

by Andrew Alcorn

FrontPage

Tararua Wind Farm
Open Weekend

Build Your House with Water?

Compost Bins from
Demolition Materials

The GMO Controversy

Notice Board

Join ATLA

Home

MATERIAL MJ/kg MJ/m3 MATERIAL MJ/kg MJ/m3
Aggregate, general

0.1

150

Building paper

25.5

Aluminium, virgin

191.0

515,700

Plaster, gypsum

4.5

6,460

Bitumen

44.1

45,420

Plaster board

6.1

5,890

Brass

62.0

519,560

Polyethylene, low density (LDPE)

103.0

91,800

Carpet

72.4

Polypropylene

64.0

57,600

Cement

7.8

15,210

Polystyrene, expanded

117.0

2,340

  soil-cement

0.4

819

PVC

70.0

93,620

  brick

2.5

5,170

Rubber, natural latex

67.5

62,100

  Tile

2.5

5,250

Steel, recycled

10.1

37,210

Concrete block

0.9

  reinforcing, sections

8.9

Concrete, ready mix 17.5 MPa

1.0

2,350

  wire rod

12.5

Concrete roofing tile

0

.8

Steel, virgin, general

32.0

251,200

Copper

70.6

631,160

  galvanised

34.8

273,180

Earth, raw Local stone

0.8

1,890

  adobe block, straw stabilised

0.5

750

Straw, baled

0.2

31

  adobe, bitumen stabilised

0.3

Timber - air dried, roughsawn

0.3

165

  adobe, cement stabilised

0.4

  kiln dried, roughsawn

1.6

880

  Rammed soil cement

0.8

  air dried, dressed

1.2

638

  Pressed block

0.4

  kiln dried, dressed

2.5

1,380

Float glass

15.9

40,060

  mouldings, etc.

3.1

1,710

Insulation   hardboard

24.2

  Cellulose

3.3

112

  MDF

11.9

8,330

  Fibreglass

30.3

970

  glulam

4.6

2,530

  Polyester

53.7

430

  particle board

8.0

  Polystyrene

117.0

2,340

  plywood

10.4

  Wool (recycled)

14.6

139

  shingles

9.0

Paint

90.4

118/litre Timber, hardwood
  solvent based

98.1

128/litre   air dried, roughsawn

0.5

388

  water based

88.5

115/litre   kiln dried, roughsawn

2.0

1,550