Design and Specification Flashcards
What modern methods of construction are you aware of?
Prefabrication, modular buildings, standardised production, using BIM, robotics.
How did you take into consideration the age of the property when creating a scope of works for the external repairs at 33-34 Ecclestone square?
I used a lime based mortar for the repointing of the brickwork.
Why did you use a lime mortar?
As it was a period property, the mortar needs to be flexible and breathable to allow for movement without damage to the brickwork.
Why do period property walls need to breathe?
They are designed to allow water to pass through and a cement mortar would create a build up of moisture within the fabric.
What type of lime mortar did you use and why?
Natural Hydraulic Lime – NHL 3.5 because it is hard wearing and suitable for walls that are both sheltered an exposed.
What are the benefits of lime mortars?
Benefits of lime mortars are that they allow walls to breathe, are relatively flexible (accommodating some movement), give some protection to surrounding brick and stone against salt and frost damage, ‘self-heal’ when exposed to air, and allow brick and stone to be reclaimed after demolition.
What ratio did you use for the repointing of the mortar?
3:1 sand to lime mix.
What are the key components of a typical specification?
Key components include project scope, materials, workmanship, and standards.
They differ from a schedule of works, which outlines tasks and timelines.
How does the NBS system support best practice in specification writing?
The NBS system provides standardized templates and guidance to ensure clarity and compliance.
What considerations must be made when preparing a scope of works for a listed or heritage building?
Considerations include preservation of historical features, compliance with regulations, and sensitivity to the building’s character.
How do Building Regulations and planning considerations influence design decisions?
They dictate safety, accessibility, and environmental standards that must be adhered to in the design.
What are Modern Methods of Construction (MMC)?
MMC refers to innovative construction techniques that improve efficiency and sustainability.
They can be incorporated into refurbishment projects to enhance performance.
What is the difference between performance-based and prescriptive specifications?
Performance-based specifications focus on outcomes, while prescriptive specifications detail specific methods and materials.
What role does the client brief play in the specification and design process?
The client brief outlines the project’s objectives, requirements, and constraints, guiding the design and specification.
What are ‘end of journey’ facilities?
‘End of journey’ facilities are amenities like showers and bike storage that support sustainable transport options.
They are increasingly important in commercial refurbishment projects.
Why is it important to consider sustainability when specifying works?
Sustainability reduces environmental impact and can enhance the long-term viability of refurbishment projects.
What is a CAT A fit-out?
A CAT A fit-out is a base level of finishing that prepares a space for occupation such as M&E, lighting, flooring, etc.
It differs from CAT B, which includes customization for specific tenant needs.
When might you use a prescriptive specification?
Where the client has requirements that might not be familiar to contractors and where certainty regarding the exact nature of the completed development is more important to the client.
When might you used a performance specification?
Straight-forward, standard building types and projects. Where the Client is happy to give the contractor and suppliers more scope to innovate and adopt cost effective methods of work, potentially offering better value for money.
Can you walk us through how you advised the client at Circus House to align their refurbishment with market demands and sustainability goals?
I informed the Client that while a lot of the current fittings such as the kitchen were not in line with the market trends, they could still provide serviceable use for repairs in properties awaiting refurbishment. Additionally items such as the cable trays could be sprayed and reused within the project.
In regards to the market demands, I was aware of growing trends for offices within portfolios for other client’s and I had a conversation with the Client’s agents regarding the feedback they had received from prospective tenants across the portfolio. I then feedback my solutions to the client which included the installation of a shower to the demise.
How did you justify the use of DOFF cleaning to your client, and what measures did you suggest to manage potential risks?
I justified my use of DOFF to the client as it is eco friendly, is able to remove stubborn dirt and build up to brickwork and will be sensitive to the brickwork. I did inform the client that there was a chance that not all the build would be removed and it may require cleaning more than once to remove all the build up.
What is DOFF cleaning?
It is a steam-based stone cleaning method that uses low-pressure, high-temperature water (up to 150°C) to remove dirt, grime, and other contaminants from surfaces like brick, stone, and concrete
What are the pros and cons of DOFF Cleaning?
DOFF cleaning is eco friendly, effective at paint and matter removal and is gentle.
However, it may take longer than other cleaning methods which can also increase labour costs.
What alternatives are there to DOFF cleaning?
TORC cleaning
