The main entrance to a dwelling house, as shown in the accompanying sketch, provides access for a person in a wheelchair. The door opening is located in a 300mm external block wall with an insulated cavity and the door is a solid wooden door. The house has a solid concrete ground floor with a 20mm quarry tile finish. (a) To a scale of 1:5, draw a vertical section through the external wall and door, showing clearly the threshold and the door. The section should show all the constructional details from the bottom of the foundation to 300mm above finished floor level. (b) Indicate on the drawing the specific design detailing that ensures that rainwater is removed from the threshold area and does not penetrate to the inner surfaces surrounding the door.

Leaving Cert Construction Studies Doors: The main entrance to a dwelling

The main entrance to a dwelling house, as shown in the accompanying sketch, provides access for a person in a wheelchair - Leaving Cert Construction Studies - Question 1 - 2006

Question 1

The-main-entrance-to-a-dwelling-house,-as-shown-in-the-accompanying-sketch,-provides-access-for-a-person-in-a-wheelchair-Leaving Cert Construction Studies-Question 1-2006.png

The main entrance to a dwelling house, as shown in the accompanying sketch, provides access for a person in a wheelchair. The door opening is located in a 300mm exte... show full transcript

Worked Solution & Example Answer:The main entrance to a dwelling house, as shown in the accompanying sketch, provides access for a person in a wheelchair - Leaving Cert Construction Studies - Question 1 - 2006

Step 1

(a) Draw a vertical section through the external wall and door

96%

114 rated

Answer

To create the vertical section:

Foundation: Begin with the foundation, showing a depth of 300mm, which should be reinforced with mild steel bars. Include a damp-proof course (DPC) positioned behind the concrete cill.
Threshold Detail: The threshold should feature a proprietary threshold unit which ensures water drainage. This unit should be detailed with a slope of 1:15 to facilitate rainwater removal.
Ground Floor: Draw the 20mm quarry tile finish above the threshold, indicating the continuation of the block wall up to the finished floor level.
Door Detail: Illustrate the solid wooden door positioned accurately. Ensure to note the cavity spacing and insulation details within the external wall.
Scale: Ensure all details are properly scaled to a 1:5 ratio on the drawing for clarity.

Step 2

(b) Indicate on the drawing the specific design detailing

99%

104 rated

Answer

For rainwater management:

Slope Design: Ensure that the configuration of the threshold incorporates a slope away from the door, directing rainwater towards a drainage channel. This should be specified as a proprietary drainage channel.
Drainage Channel: Integrate a drainage channel at the bottom of the threshold that discharges rainwater to a suitable location, preventing water from pooling.
Material Selection: Use materials that can withstand moisture and prevent water ingress into the inner surfaces, including a DPC, solid block construction, and waterproof finishes where applicable.
Construction Details: Clearly depict these details on the section to demonstrate how water is managed effectively around the entrance.

The main entrance to a dwelling house, as shown in the accompanying sketch, provides access for a person in a wheelchair - Leaving Cert Construction Studies - Question 1 - 2006

Worked Solution & Example Answer:The main entrance to a dwelling house, as shown in the accompanying sketch, provides access for a person in a wheelchair - Leaving Cert Construction Studies - Question 1 - 2006

(a) Draw a vertical section through the external wall and door

(b) Indicate on the drawing the specific design detailing

Join the Leaving Cert students using SimpleStudy...