Thatch building lunchlecture tu delft
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5 de Nov de 2015•0 gostou•1,187 visualizações
Thatch building lunchlecture tu delft
5 de Nov de 2015•0 gostou•1,187 visualizações
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a lecture on building and designing with thatch. Given by Joost Kreuger of the Vakfederatie Rietdekkers
ilonka marselisSeguir
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Thatch building lunchlecture tu delft
- 1. Thatch Naturally a short introduction Joost Kreuger Vakfederatie Rietdekkers
- 2. Vakfederatie Rietdekkers • branche organisation • knowledge and expertise • education • quality control • mediation • www.riet.com 2
- 3. 3
- 4. 4
- 5. contents • short history • waterreed • thatching technique • durability • key features • examples • questions 5
- 6. Short History The natural roofing material 6
- 7. • in search of shelter • local materials • variety of materials 7
- 8. 8
- 9. 9
- 10. 10
- 11. 11
- 12. 12
- 13. 13
- 14. 14
- 15. 15
- 16. 16
- 17. 17
- 18. 18
- 19. 19
- 20. thatch survived • most durable • specialism • 100.000.000 € industry in Holland 20
- 21. 21
- 22. Waterreed Anual so renewable 22
- 38. Thatching technique Hard labour craft 38
- 39. • minor changes in craft over the years • some different and more durable materials • construction changes • change in design 39
- 40. • Building details roof 40
- 41. • Building details wall 41
- 42. 42
- 43. 43
- 44. 44
- 45. 45
- 46. 46
- 47. 47
- 48. 48
- 49. 49
- 50. 50
- 51. 51
- 52. 52
- 53. 53
- 54. 54
- 55. • Please visit www.riet.com for all details 55
- 56. Durability Enter architect 56
- 57. Moisture determines life expectancy • slope • construction • detailed engineering • Surrounding of building • orientation • craftsmanship • quality of thatch • maintenance 57
- 58. Moisture determines life expectancy • slope > enter architect • construction > enter architect • detailed engineering > enter architect • surrounding of building • orientation • craftsmanship • quality of thatch • maintenance 58
- 59. Moisture determines life expectancy • slope > enter architect • construction > enter architect • detailed engineering > enter architect • surrounding of building • oriëntation • craftsmanship • quality of thatch • maintenance 59
- 62. slope • minimum 30° for short distances (gable etc) • minimum 45° for longer distances 62
- 66. Zo hoort het !
- 67. Grotere hellingshoek? de combinatie plat dak en riet
- 70. 70
- 74. Nog beter !
- 75. Moisture determines life expectancy • slope > enter architect • construction > enter architect • detailed engineering > enter architect • surrounding of building • oriëntation • craftsmanship • quality of thatch • maintenance 75
- 76. • Traditional construction • No R value • Fire risk
- 77. Het moderne “schroefdak” • Modern construction • R=1,5 min • No fire risk
- 81. construction either: • open > sheds, barns • closed > homes, public buildings • different kinds of insulation possible 81
- 82. Moisture determines life expectancy • slope > enter architect • construction > enter architect • detailed engineering > enter architect • surrounding of building • oriëntation • craftsmanship • quality of thatch • maintenance 82
- 83. less details > less moisture > higher life expectancy every detail means: • turning of thatch (less slope) • increase in thickness (less slope) • less sun and wind (less drying capacity) • less drain of water
- 85. gedraaid
- 86. Rietpakket dikker + overmaat aan water
- 89. Recreatieproject 80 woningen, 160 killen
- 90. Dak: dikte = 24 cm helling riet = 30° Kil : dikte = 46 cm helling riet = 14°
- 91. Life expectancy of a thatched valley • slope = 75% of optimal • thickness = 75% • oriëntation (north) = 75% • Water volume = 75% • drying capacity = 75% life expectancy: 75% x 75% x 75% x 75% x 75% = 24% Life expectancy of roof +/- 32 years Valley > 0,24 x 32 = 8 jaar.
- 92. oplossing
- 93. Make it open… • slope = 75% > 100% • thickness = 75% > 100% • oriëntation (north) = 75% > 100% • Water volume = 75% > 100% • drying capacity = 75% > 100% Life expectancy increases from 8 years to 32
- 94. Nog beter !
- 95. key features why thatch survived 95
- 96. thatched roof • renewable and natural • warm and soft • easily adapts in every surrounding • distinguished • pliable • high degree of formability • firesafe even without fire-retardant • high R values possible 96
- 97. Examples thatch is a modern building material 97
- 99. 99
- 106. veiliger !
- 112. Questions ? joost@riet.com 112
- 113. www.riet.com Learn even more ! 113