Sustainability Flashcards

1
Q

Building Reg Part L
2021 change

A
  • Part L Build Regs – Conservation of fuel and power
  • SAP Standard Assessment Method Calculation (dwelling)
  • SBEM Simplified Building Energy Model (non domestic)
  • 2021 - 30% less Co2 emission than before e.g Air source heat pumps now often used in housing
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2
Q

Sustainable Development

A
  • Meets present needs without impacting on future generations.
  • Coal, Oil & Gas all produce CO2 and are finite resources i.e. UNsustainable
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3
Q

3 Pillars of Sustainability:

A
  • Environmental - rates of renewable resource harvest, pollution creation, and non-renewable resource depletion that can be continued indefinitely. If they cannot be continued indefinitely then they are not sustainable.
  • Economic sustainability - the ability to support a defined level of economic production indefinitely.
  • Social – liveability, health equity, community development, human rights, labour rights.
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4
Q

Climate Control Regulations

A
  • Climate Change Act 2008; Reduce UK emissions by 26% 2020, 80% 2050.
  • Kyoto Protocol; Linked to UN framework binding internationally emission reductions for developed nations (responsible for most emmissions)
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5
Q

Criteria by which sustainability is measured in relation to finished buildings:

A
  • Energy Performance Certificates; Most domestic dwellings require an EPC which outlines the energy performance of the property. Providing indicative costs and what could be done to improve the efficiency of the property.
  • Display Energy Certificates; DEC’s display actual energy consumption of public buildings to provide transparency about the energy efficiency of publicly owned buildings.
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6
Q

BREEAM;

A

Building
Research
Establishment
Environmental
Assessment
Method.

Environmental performance of new & existing buildings.

  • Management,
  • Health,
  • Energy,
  • Transport,
  • Water,
  • Materials,
  • Waste,
  • Ecology,
  • Pollution,
  • Innovation
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7
Q

Building Regs;

A

Standards for design, construction and alteration works aimed to achieve:

  • Fire safety
  • Structure
  • Access
  • health,
  • safety,
  • welfare,
  • convenience,
  • energy efficiency
  • sustainability
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8
Q

Energy Generation:

A

Sustainable energy can be:

  • solar,
  • wind,
  • hydro,
  • geothermal or
  • biomass (natural fuel e.g. wood).
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9
Q

Sustainable materials:

A

Don’t deplete natural resources or detrimentally impact the environment;

  • Bamboo,
  • Wood,
  • Wool,
  • Linen,
  • Straw,
  • Clay,
  • Stone,
  • Coconut.
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10
Q

Renewable energy

A
  • Ground source heat pumps works by using the evaporation and condensing of a refrigerant to move heat from one place to another.
  • Air-source heat pumps extract heat from outside in a similar way to ground source heat pumps.
  • Passive is ideal whereby the building temperature is controlled either by solar gain or deterrent i.e. no additional energy is required to control temperature.
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11
Q

Energy conservation (no active system)

A
  • In passive solar building design,
  • windows,
  • walls, and
  • floors are made to:
  • collect,
  • store, and
  • distribute solar energy in the form of
  • heat in the winter and
  • reject solar heat in the summer.
  • It does not involve the use of mechanical and electrical devices.
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12
Q

Life & Whole life costing

A

Life cycle (building) costing:
- reviews capital costs,
- operational and
- replacement costs as well as disposal costs.

Whole life (building & business) costing;
- considers non-construction costs as well as
- income generated.

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13
Q

Buildings vs the environment.
Holistic consideration

A
  • Energy use; e.g. Passive vs gas CHS,
  • Land use; Green belt vs brownfield
  • Biodiversity; Preserve existing wildlife
  • Water; Discharge (diesel, paint, chemical) from construction into nearby river or SW run off
  • Sustainable Materials; wood, wool, stone
  • Pollution; Use of diesel engines, demolition
  • Waste minimisation; Large quantities of material requiring disposal e.g. insulation, concrete, tiles
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14
Q

Design considerations (sustainability)

A
  • Site; Green vs brownfield
  • Building form; solar gain materials;
  • Sustainable lighting; use of natural light
  • Ventilation; natural through aligning building with prevailing wind heating;
  • Insulation, solar gain
  • Water; green roof
  • Drainage; Permeable paving, Swales, Rainwater harvesting
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15
Q

Green roof

A
  • Covered with vegetation planted over a waterproofing membrane.
  • Reduce SW run off, reduced heating & cooling, increased biodiversity, increased durability/lifespan, improve air quality
  • Cons – Increased capital costs, structural load, specialist contractors, maintenance required
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16
Q

I understand the requirement of EPC’s.

A
  • energy efficiency on a scale of A-G, with A being the most efficient and G the least.
  • Any newly rented properties will need a rating of at least a C, and any existing tenancies will have until 2028 to do the same
17
Q

I understand how Building Regulations Part L sets out requirements for buildings in respect of fuel and power.

A
  • Standard Assessment Procedure (SAP) calculations are required to demonstration compliance with part L of the building regulations for new dwellings
  • SAP test informs the EPC rating
  • Test based on:
  • Construction materials and thermal insulation
  • Efficiency and control of heating systems.
  • Solar gains.
  • Choice of fuel / Renewable energy technologies. for heating and lighting.