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How to make waterproof roofing from leaves, bark, or woven
Contributed by: Kay
  • 1. Which type of leaf is generally unsuitable for roofing due to rapid decay?
A) Large, waxy leaves
B) Needle-like leaves
C) Soft, thin leaves
D) Dry, brittle leaves
  • 2. What is the primary purpose of overlapping roofing materials?
A) To add visual appeal
B) To allow for expansion
C) To reduce weight
D) To prevent water penetration
  • 3. What is a common method of securing bark roofing sections?
A) Gluing with sap
B) Lashing with natural fibers
C) Welding
D) Using commercial nails
  • 4. What type of grass is best suited for thatched roofs?
A) Grasses that grow in clumps
B) Short, soft grasses
C) Spiky grasses
D) Long, stiff grasses
  • 5. Which of these factors is most crucial for a durable leaf roof?
A) Tight packing and secure fastening
B) The time of year leaves are collected
C) The color of the leaves
D) The smell of the leaves
  • 6. What natural substance can be used to seal gaps in a bark roof?
A) Gravel
B) Dust
C) Clay
D) Sand
  • 7. Why is it important to dry roofing materials before installation?
A) To increase their weight
B) To prevent rotting and mold
C) To improve their color
D) To make them more flexible
  • 8. What is the recommended roof pitch for a leaf or thatch roof?
A) Shallow (less than 15 degrees)
B) Slightly sloped (20-30 degrees)
C) Flat (0 degrees)
D) Steep (at least 45 degrees)
  • 9. What is the primary function of the roof ridge?
A) To improve ventilation
B) To seal the top seam of the roof
C) To collect rainwater
D) To provide structural support
  • 10. Which of the following tools is essential for thatched roof construction?
A) Thatching needle
B) Soldering iron
C) Welding torch
D) Screwdriver
  • 11. Which of these materials offers the best natural water repellency?
A) Bark
B) Leaves
C) Clay
D) Grass
  • 12. What can be added to grass thatch to prevent insect infestation?
A) Wood ash
B) Salt
C) Sugar
D) Sand
  • 13. How often should a leaf roof be inspected and maintained?
A) Regularly (e.g., every few months)
B) Only after heavy storms
C) Never
D) Every few years
  • 14. What is a wattle and daub structure often used for in conjunction with a natural roof?
A) Foundation
B) Walls
C) Drainage system
D) Chimney
  • 15. What is an important consideration when harvesting bark for roofing?
A) Harvest all the bark from a single tree
B) Harvest only after the tree is dead
C) Harvest sustainably to avoid harming trees
D) Harvest only in the winter
  • 16. Which direction should overlaps face to best shed water?
A) Sideways
B) Alternating directions
C) Downwards
D) Upwards
  • 17. What can be used as an alternative to natural fiber for lashing?
A) Elastic bands
B) Metal wire
C) Plastic rope
D) Thin strips of bark
  • 18. What helps prevent wind uplift on a leaf roof?
A) Bright colors
B) Gaps for airflow
C) Lightweight materials
D) Weight and secure fastening
  • 19. Which of the following can extend the lifespan of a natural roof?
A) Neglecting repairs
B) Proper drainage
C) Planting trees directly on the roof
D) Rough installation
  • 20. What is a key factor when choosing leaves for roofing in a snowy climate?
A) Strength to withstand snow load
B) Bright color to reflect sunlight
C) Sweet smell to attract animals
D) Soft texture for insulation
  • 21. What is the best time of year to harvest grasses for thatching?
A) Spring
B) Winter
C) Late summer or early fall
D) Any time is fine
  • 22. What is the danger of loose thatch or leaf on a roof?
A) Fire hazard
B) Improved aesthetics
C) Increased insulation
D) Reduced weight
  • 23. Why is a smoky fire sometimes built under thatch during construction?
A) To discourage insects
B) To keep the workers warm
C) To provide light
D) To help the thatch dry
  • 24. Which tree's bark is best known for its waterproof qualities?
A) Birch
B) Maple
C) Pine
D) Oak
  • 25. What should be considered when harvesting materials from protected lands?
A) That the forest won't mind
B) That no one is watching
C) That the best materials are always available
D) Regulations and permits
  • 26. What technique can improve water runoff with leaf roofing?
A) Creating a layered, shingled effect
B) Spreading the leaves out flat
C) Punching holes in the leaves
D) Using only one layer of leaves
  • 27. What type of knot is most secure for lashing roofing materials?
A) Granny knot
B) Square knot
C) Slip knot
D) Overhand knot
  • 28. What is an advantage of using natural materials for roofing?
A) Sustainability
B) Highest durability
C) Easiest installation
D) Lowest cost
  • 29. What can be used to create a smoke hole in a thatched roof?
A) A window
B) Carefully planned opening
C) Missing thatch
D) Random hole
  • 30. What is the first step in building a waterproof roof?
A) Installing flashing
B) Buying expensive tools
C) Starting at the top
D) Planning and material gathering
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