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Live Attack

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Photographic and descriptive presentation showing the extent of fungal and insect attack.

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Live Attack

  1. 1. LIVE ATTACK WOOD ROT AND INSECT DAMAGE IN BUILDINGS
  2. 2. DRY ROT • Latin Name: Serpula lacrymans • Common Name: Dry Rot Fungus • Habitat Mostly softwood • Damage Characteristics:
  3. 3. DRY ROT TYPICAL DAMAGE
  4. 4. FUNGAL CHARACTERISTICS –Mycelium –Strands –Fruit Body - See Slide –Spores
  5. 5. DRY ROT- FRUIT BODY IN CORNER OF CEILING
  6. 6. DRY ROT SHEETS OF MYCELIUM EXPOSED BY REMOVAL OF TIMBER WALL PANNELLING
  7. 7. TYPICAL WHITE ROT DAMAGE TO TIMBER
  8. 8. TYPICAL BROWN ROT DAMAGE TO TIMBER
  9. 9. TYPICAL SOFT ROT DAMAGE TO TIMBER
  10. 10. WET ROT (BROWN ROT) FRESHLY COLONISED WOOD
  11. 11. WET ROT (BROWN ROT) LONGER TERM DAMAGE
  12. 12. WET ROT (BROWN ROT) STRANDS
  13. 13. WET ROT (BROWN ROT) FRUIT BODIES
  14. 14. WET ROT (BROWN ROT) MYCELIUM ON THE WOOD
  15. 15. WET ROT (BROWN ROT) FRUIT BODY (FIBROPORIA VAILLANTII)
  16. 16. WET ROT (BROWN ROT) FRUIT BODY (PORIA PLACENTA)
  17. 17. WET ROT (BROWN ROT) FRUIT BODY (AMYLOPORIA XANTHA)
  18. 18. WET ROT (WHITE ROT) FRUIT BODY AND DAMAGED WOOD
  19. 19. WET ROT (WHITE ROT) DAMAGED WOOD WITH BROWN MYCELIUM
  20. 20. WET ROT (WHITE ROT) FRUIT BODY (SEPARATED FROM WOOD)
  21. 21. WET ROT (WHITE ROT) FRUIT BODIES (PLEUROTUS OSTREATUS)
  22. 22. WET ROT (WHITE ROT) STRANDS ON DAMAGED WOOD
  23. 23. WET ROT (WHITE ROT) FRUIT BODY (ASTEROSTROMA SP)
  24. 24. WET ROT (BROWN ROT) MYCELIUM AND STRANDS ON DAMAGED WOOD FRUIT BODIES SHOWN DETACHED
  25. 25. REMEDIAL TREATMENT OF WET ROT: • Establish size and significance of attack: • Locate and eliminate sources of moisture: • Promote rapid drying of the structure: • Remove rotted wood: • Apply localised preservative treatment: • Replacement work use preservative treated timbers: • Introduce support measures:
  26. 26. NON WOOD ROTTING FUNGI • Moulds • Blue stain in service • Plaster Fungi (Coprinus spp. Peziza spp) • Slime Moulds
  27. 27. MOULDS • Habitat - Surface of damp wood, plaster, wallpaper or paint. • Characteristics: Surface growths usually downy and produce masses of powdery spores. • Remedial Treatment: Ventilation, Removal of surface spores, heating, cleaning
  28. 28. MOULD GROWTH
  29. 29. BLUE STAIN IN SERVICE • Habitat - Sapwood cells of moist wood but mainly ray cells. Cannot grow below 20% moisture content. • Characteristics: Disfigurement of the wood Black blue or grey streaks and patches on the wood • Remedial Treatment Exterior timbers only.
  30. 30. BLUE STAIN IN SERVICE CAUSING DAMAGE TO PAINT
  31. 31. BLUE STAIN IN SERVICE CAUSING DAMAGE TO NATURAL FINISH
  32. 32. PLASTER FUNGI • Habitat: Damp brickwork or plaster. Feeds on surface detritus or on organic material included in walls • Characteristics: Produce large fruit-bodies or mycelial growths which may be mistaken for those of wood-rotting fungi. • Remedial treatment: Locate and remove source of dampness.
  33. 33. PLASTER FUNGI FRUIT BODIES (COPRINUS SP)
  34. 34. PLASTER FUNGI FRUIT BODIES (PEZIZA SP)
  35. 35. PLASTER FUNGI FRUIT BODY(C4 TIMES NATURAL SIZE) GROWING ON FLAKES OF WHITE PAINT
  36. 36. SLIME MOULDS SPORE DUST FROM RUPTURED FRUIT BODIES ON WOOD
  37. 37. ALGAL GROWTH RESULTING FROM OVERFLOWING HOPPER
  38. 38. CHEMICAL DAMAGE TO WOOD
  39. 39. COMMON FURNITURE BEETLE
  40. 40. COMMON FURNITURE BEETLE DAMAGE TO WOOD
  41. 41. COMMON FURNITURE BEETLE BORE DUST (x 10)
  42. 42. LYCTUS POWDERPOST BEETLE
  43. 43. LYCTUS POWDERPOST BEETLE DAMAGED WOOD
  44. 44. LYCTUS POWDERPOST BEETLE BORE DUST (x 10)
  45. 45. HOUSE LONGHORN BEETLE
  46. 46. HOUSE LONGHORN BEETLE BORE DUST (x10)
  47. 47. HOUSE LONGHORN BEETLE DAMAGE EMERGENCE HOLES
  48. 48. HOUSE LONGHORN BEETLE DAMAGE CROSS-SECTION SHOWING EXTENT OF DAMAGE TO SAPWOOD AND SURFACE SKIN OF SOUND WOOD
  49. 49. DEATHWATCH BEETLE
  50. 50. DEATHWATCH BEETLE DAMAGED WOOD
  51. 51. DEATHWATCH BEE3TLE BORE DUST (x10)
  52. 52. PTILINUS BEETLE
  53. 53. PTILINUS BEETLE DAMAGED WOOD
  54. 54. WOOD-BORING BEETLE
  55. 55. WOOD-BORING WEEVIL DAMAGED WOOD
  56. 56. WHARF BORER BEETLE
  57. 57. WHARF BORER BEETLE DAMAGED WOOD
  58. 58. BARK BORER BEETLE
  59. 59. BARK BORER BEETLE DAMAGED WOOD
  60. 60. BARK BORER BEETLE BORE DUST (x10)
  61. 61. MOTH DAMAGED WOOD
  62. 62. SAWFLY DAMAGED WOOD
  63. 63. FOREST LONGHORN BEETLE
  64. 64. FOREST LONGHORN BEETLE DAMAGED WOOD
  65. 65. DERMESTID BEETLE
  66. 66. DERMESTID BEETLE DAMAGED WOOD
  67. 67. WOOD WASP DAMAGED WOOD
  68. 68. BOSTRYCHID POWDERPOST BEETLE
  69. 69. BOSTRYCHID POWDERPOST BEETLE DAMAGED WOOD
  70. 70. JEWEL BEETLE
  71. 71. JEWEL BEETLE DAMAGED WOOD
  72. 72. PINHOLE BORER BEETLE DAMAGED WOOD
  73. 73. MARINE BORER DAMAGED WOOD
  74. 74. FINALLY • Know the preservatives and methods of application for pretreatment of wood. • Know remedial treatments for eradicating fungi and insects • ALWAYS be aware of Health & Safety aspects of remedial treatments.

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