1. Weather Resistance

2. 1. List 4 things that buildings should protect their occupants from.
2. What are the properties of an impervious material?
3. Explain how each of these weather elements can damage a building?
3. What does the term ‘Useful Life’ mean in relation to a building?
4. Explain why PVC is a suitable material for soffits, windows and door frames.

3. 5. Where are rubber weather seals used and how do they work?
6. What is a sealant, where is it used and how does it work?
7. Describe a weather strip and explain its purpose in a building?
8. How are draught strips used in a building?
9. What is a fall?
10. How are falls used in weather proofing a building?

4. 11. Explain the function of overhangs in weatherproofing a building?
12. Give an example of an overhang?
13. Flashings are used in all buildings what are they and how do they work?
14. Which metal is commonly used in flashings and why is this?
15. How do sloping exterior sills help to weatherproof a building?