A2/A3- Roof Materials

Question 1

What are 3 types of sustainable roof materials?
1.
2.
3.

Answer 1

1. Slate.
2. Pantile.
3. Thatch.

Question 2

What 2 materials are ridge roof tiles (the intersection of 2 roof planes) commonly made of?

Answer 2

Clay or concrete.

Question 3

Why is manufacturing offsite more reliable?

Answer 3

Materials are manufactured in a controlled environment.

Question 4

What are 2 advantages of slate roof tiles:
1. Low ____________ energy.
2. Highly ________ resistant.

Answer 4

embedded
water

Question 5

What are 2 advantages of concrete roof tiles:
1.
2.

Answer 5

1. Inexpensive.
2. Variety of colours.

Question 6

What are pantile roof tiles?

Answer 6

S-shaped interlocking clay tiles.

Question 7

What is 1 advantage of pantile roof tiles compared to concrete roof tiles?

Answer 7

They are more sustainable than concrete roof tiles.

Question 8

Explain two performance characteristics of pantiles as roofing materials for use:

1. Pantile is ________, so they will not be frequently replaced.
2. Pantile is _____________, so it will resist air frost in the winter.

Answer 8

durable

frost resistant

Question 9

What is roofing felt?

Answer 9

Polyester matting coated with bitumen.

Question 10

Why is bitumen used to coat roofing felt?

Answer 10

Because it is water-proof.

Question 11

What is lead flashing?

Answer 11

A sheet of lead used to cover gaps in the roof.

Question 12

Lead is _______________, so lead flashings can be __________ to fit around ___________ and ________________.

Answer 12

malleable
shaped
vents
chimneys

Question 13

Lead is ________________________, so lead flashings do not have to be ______________ often during a building’s lifespan.

Answer 13

corrosion resistant
replaced