Building construction unit 2
Q39.What is the difference between plain and corrugated asbestos cement sheets?
Ans. Plain asbestos cement sheets are flat and used for walls, ceilings, and partitions, while
corrugated asbestos cement sheets have wavy ridges, making them stronger and more suitable
for roofing and exterior applications.
Q40 What are the benefits of using aluminum sheets in roofing?
Ans.Aluminum sheets are lightweight, corrosion-resistant, durable, and energy-efficient, making
them ideal for roofing. They also require low maintenance and are easy to install.
Q41 How does a corrugated aluminum sheet differ from a plain aluminum sheet?
Ans.Corrugated aluminum sheets have ridges for added strength, durability, and water drainage,
making them ideal for roofing. Plain aluminum sheets are flat and used for general construction,
cladding, and fabrication.
Q42 Why are galvanized iron sheets commonly used in roofing?
Ans.Galvanized iron sheets are commonly used in roofing because they are strong, durable,
corrosion-resistant, and cost-effective, providing long-lasting protection against weather
conditions.
Q43 What is the difference between plain and corrugated galvanized iron sheets?
Ans.Plain galvanized iron sheets are flat and used for general construction, while corrugated
sheets have ridges for added strength, durability, and better water drainage, making them ideal
for roofing.
Q44 What are the advantages of using stone for roofing?
Ans.Stone roofing is highly durable, weather-resistant, fireproof, and provides excellent
insulation. It also adds a natural and aesthetic appeal to buildings.
Q45 How is slating used in roofing, and what are its benefits?
Ans.Slating is the use of natural or synthetic slate tiles for roofing, arranged in overlapping
layers. It offers durability, weather resistance, fire resistance, and an elegant appearance.
Q46 What are shingles, and how are they used in roofing?
Ans.Shingles are small, overlapping roofing elements made of materials like asphalt, wood, or
metal. They are used to cover roofs in layers, providing durability, weather resistance, and
aesthetic appeal.
Q47 What are the types of shingles commonly used in roofing?
Ans.Common types of roofing shingles include asphalt (affordable and durable), wood (natural
and aesthetic), metal (lightweight and long-lasting), slate (durable and elegant), and composite
(versatile and cost-effective).
Q48 What are the advantages of thatch roofing?
Ans.Thatch roofing is eco-friendly, provides excellent insulation, has a natural aesthetic, and is
lightweight. It is also durable when properly maintained.
Q49 What are the limitations of using concrete tiles for roofing?
Q39.What is the difference between plain and corrugated asbestos cement sheets?
Ans. Plain asbestos cement sheets are flat and used for walls, ceilings, and partitions, while
corrugated asbestos cement sheets have wavy ridges, making them stronger and more suitable
for roofing and exterior applications.
Q40 What are the benefits of using aluminum sheets in roofing?
Ans.Aluminum sheets are lightweight, corrosion-resistant, durable, and energy-efficient, making
them ideal for roofing. They also require low maintenance and are easy to install.
Q41 How does a corrugated aluminum sheet differ from a plain aluminum sheet?
Ans.Corrugated aluminum sheets have ridges for added strength, durability, and water drainage,
making them ideal for roofing. Plain aluminum sheets are flat and used for general construction,
cladding, and fabrication.
Q42 Why are galvanized iron sheets commonly used in roofing?
Ans.Galvanized iron sheets are commonly used in roofing because they are strong, durable,
corrosion-resistant, and cost-effective, providing long-lasting protection against weather
conditions.
Q43 What is the difference between plain and corrugated galvanized iron sheets?
Ans.Plain galvanized iron sheets are flat and used for general construction, while corrugated
sheets have ridges for added strength, durability, and better water drainage, making them ideal
for roofing.
Q44 What are the advantages of using stone for roofing?
Ans.Stone roofing is highly durable, weather-resistant, fireproof, and provides excellent
insulation. It also adds a natural and aesthetic appeal to buildings.
Q45 How is slating used in roofing, and what are its benefits?
Ans.Slating is the use of natural or synthetic slate tiles for roofing, arranged in overlapping
layers. It offers durability, weather resistance, fire resistance, and an elegant appearance.
Q46 What are shingles, and how are they used in roofing?
Ans.Shingles are small, overlapping roofing elements made of materials like asphalt, wood, or
metal. They are used to cover roofs in layers, providing durability, weather resistance, and
aesthetic appeal.
Q47 What are the types of shingles commonly used in roofing?
Ans.Common types of roofing shingles include asphalt (affordable and durable), wood (natural
and aesthetic), metal (lightweight and long-lasting), slate (durable and elegant), and composite
(versatile and cost-effective).
Q48 What are the advantages of thatch roofing?
Ans.Thatch roofing is eco-friendly, provides excellent insulation, has a natural aesthetic, and is
lightweight. It is also durable when properly maintained.
Q49 What are the limitations of using concrete tiles for roofing?
