construction ❤️❤️❤️❤️💖🔥🔥

Question 1

state 2 functions of a foundation in domestic construction?

Answer 1

1. to transfer the load of the building safely to the ground
2. to provide a level and stable base to start building upon

Question 2

purpose of a cavity wall?

Answer 2

to prevent moisture from the outer leaf (skin) of the wall from penetrating into the inner leaf, keeping internal structure dry

Question 3

2 commons types of roof coverings used on dwellings

Answer 3

1. concrete roof tiles
2. slate

Question 4

give one advantage and disadvantage of uPVC window

Answer 4

Advantages: resistant to rot
Disadvantage: if sitting in direct sunlight discolouration can occur

Question 5

2 materials suitable flr floor insulation

Answer 5

rigid foam board, mineral wool

Question 6

function of a DPC and typical placement

Answer 6

barrier to prevent moisture from rising up from the ground into the walls.

Question 7

what is the function of a dpc wall and where is it typically placed?

Answer 7

damp proof course is a barrier that prevents moisture from rising up from the ground into the wall

Placed in the wall, just above ground lebel

Question 8

name 2 joints used in timber construction

Answer 8

1. a butt joint
2. mortise and tenon joint

Question 9

why is adequate site drainage essential

Answer 9

to prevent water from pooling around the foundation, which can cause instability

Question 10

what’s the purpose of a vapor barrier

Answer 10

prevents warm moist air from inside the building from passing into the roof structure which can cause rot

Question 11

learn the cross- section of a concrete block

Question 12

explain under floor heating

Answer 12

a central hearing system where the floor is used as a radiator heated by pipes for a hydronic system or electric heating cables for a dry system which r installed in or under the floor

Question 13

2 advantages of underfloor heating

Answer 13

energy efficient: operates at a much lower temperature than radiators
even heat distribution: provides consisten even heat

Question 14

what is airtightness and what’s it’s importance

Answer 14

sealing up gaps in the building to prevent air leaking out
- stops heat from escaping
- prevents damp and mould in walls

Question 15

2 methods used in new homes to improve energy efficiency

Answer 15

Lots of insulation: to trap in heat
MVHR: system that brings in fresh air but keeps the heat from the old air

Question 16

3 heath and safety risks and how to reduce

Answer 16

1. falling from height: use proper scaffolding and harness
2. tripping over something: keep the site tidy and well lit
3. breathing in dangerous dust: wear a mask and use dust extractors

Question 17

how does a domestic water system supply cold and hot water

Answer 17

cold water: comes from the mains; a tank in the attic stores it for the house
Hot water: cold water from mains go into a hot water cylinder, the boiler heats a seperate loop of water, the hot loop heats up the cold water

Question 18

2 advantages of heat pumps?

Answer 18

cheaper to run: use less energy to make more heat
eco - friendly/ they don’t burn fuel

Question 19

construction of a panelled door

Answer 19

there’s a frame that makes the door strong then panels are fitted inside the frame

Question 20

whats the purpose of architrave, skirting board and door stop

Answer 20

architrave: hides the gap between the wall and door frame
skirting board: protects the wall from furniture and vaccine
Door stop: stops the door from hitting tje door

Question 21

name 2 window opening mechanisms

Answer 21

casement window: the window sash is hinged on the side, you open it by turning a handle to swing it outwards or inwards
Sash window: the window has 2 parts that slide vertically past eachother, they are balanced by weights and pulleys allowing it to stay open when you let go

Question 22

what is thermal bridging?

Answer 22

a weak spot in a wall or roof where heat can escape much faster than the surrounding area. can be caused by materials with high conductive thermal energy