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ESTIMATION > L13 > Flashcards

L13 Flashcards

1
Q

LCC

A

LIFE CYCLE COST/ING

  • STRICTLY A COST EXERCISE THROUGHOUT LIFE CYCLE
  • WHEN I BUY SOMETHING, YOU DON’T JUST LOOK AT THE PRICE TAG
  • THERE’S ALSO OTHER COSTS ASSOCIATED WITH IT
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2
Q

WHEN DOES THE CLIENT DON’T WANT TO KNOW LCC

A
  • WHEN YOU WORK W/DEVELOPPER WHO SELLS CONDOS AND WALK AWAY, HE’S DONE W/EVERYTHING!
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3
Q

5 TYPES OF L.C.C COSTS
M.O.D.I.T.S

A

1- INITIAL COSTS

2- SERVICE COSTS

3- MAINTENANCE COSTS

4- OPERATING COSTS

5- DISPOSAL COSTS

6- TRANSPO. COSTS

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4
Q

7 ACTIONS OF LCC
M.O.P._F.I.D2 - DRAW!!!

A

1- PURCHASE

2- INSTALLATION

3- OPERATING

4- MAINTENANCE

5- FINANCING

6- DEPRECIATION

7- DISPOSAL

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5
Q

CLARK CENTER, STANFORD UNIVERSITY CRITERIAS BY NORMAN FOSTER

A
  • Curtain wall criteria: Aesthetics, and energy performance
  • COMPARE OPTIONS FOR CURT. wall
    A, B , C
  • HOW LONG DOEST IT TAKE TO GET BACK THE MONEY YOU INTITIALLY INVESTED WITH THAT OPTION VS THE OTHER OPTION?

STANDARD BASIC GLAZING: $400K
HVAC COST/ HOW MUCH HEAT GAIN: $

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6
Q

BASE OPTION VS. IMPROVED OPTION (DOING COMPARISONS) WCH ONE IS BETTER

A
  • BASE LESS EXPENSIVE
  • IMPROVED OPTION: MORE EXPENSIVE

SAVE 20K$ IF GO TO IMPROVED OPTION
- IMPROVED OPTION IS BETTER!!!! WORTH IT! PAY MORE BECAUSE YOU SAVE MORE MONEY IN ENERGY COSTS IN THE LONG RUN!

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7
Q

PAYBACK PERIOD

A
  • AMOUNT OF TIME
  • it takes to get back the money initially invested
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8
Q

PAYBACK PERIOD OF CLARK CENTRE STANFORD UNIVERSITY

A

6 YRS

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9
Q

4 TYPES OF COSTS FOR VEHICLES; Metro Vancouver example

A

1- PURCHASE COST

2- FUEL COST

3- CARBON COST

4- LCC

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10
Q

L.C.A

A

LIFE CYCLE ASSESSMENT

  • ENVIRONMENTAL EFFECTS THROUGHOUT LIFE CYCLE
  • consists of measuring the building’s environmental damage throughout its lifecycle.
  • COMPARISON bw 2 things!!!!
  • HUMAN HEALTH ECOSYSTEM QUALITY CLIMATE CHANGE RESOURCE DEPLETION
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11
Q

6 COMPONENTS OF L.C.A (MEDPRU)

A

1- RESOURCES

2- PROCESSING

3- MANUFACTURING

4- DISTRIBUTION

5- USE

6- END OF LIFE

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12
Q

WHY IS TOYOTA PRIUS BETTER THAN CHEVY VOLT, THERE’S A NUANCE

A
  • 5K GRAND OFFERS FOR E-CARS!

-IF WE TAKE THIS OUT THE CHEVY VOLT IS NOT A GOOD OPTION ANYMORE!

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13
Q

IF WE WERE TRYING TO REDUCE UPFRONT CARBON, WCH ONE SHOULD WE USE?

A

CELLULOSE! PLANTS = RENEWABLE ENERGY!

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14
Q

CO2E

A
  • TYPE TO MEASURE C02
  • CARBON DIOXIDE ESTIMATE/EQUIVALENT?
  • called estimate because it hasn’t been produced yet
  • THEY ABSORB C02 = ACHIEVED R- VALUES
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15
Q

WHY USE LCA

A
  • To compare the potential impacts of different systems. (We’re not just concerned about costs $$$ )
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16
Q

4 FOCUS LCA

A
  • HUMAN HEALTH
  • ECOSYSTEM QLTY
  • CLIMATE CHANGE C.C
  • RESOURCE DEPLETION
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17
Q

HOW DOES A BUILDING GENERATE
ENVIRONMENTAL IMPACTS? (9) C.U.T.E.M.M.I.R.D

A

RELELEASING EMBODIED CARBON THROUGH:

EXTRACTION
TRANSPORT
CONSTRUCTION
INSTALLATION
MANUFACTURE
USE
MAINTENANCE
RENOVATION
DEMOLITION

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18
Q

2 TYPES OF EMBODIED CARBON

A

1- UPFRONT CARBON

2- OPERATIONAL CARBON

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19
Q

What do you think is greater,
upfront or operational carbon?

A
  • UPFRONT CARBON
20
Q

ENVIRONMENTAL PAYBACK PERIOD (LCA STUDY)

A

Time it takes for the environmental impact
to be the same as the alternative

ALWAYS MAKE COMPARISON!

21
Q

WHAT DO YOU CALL A CARBON THAT IS ALREADY EMMITED

A

UPFRONT CARBON

ALREADY IN THE PAST!

IT REALLY DEPENDS SUCH AS THE CITY, TRANSPO. CLIMATE FACTORS

22
Q

ENVIRONMENTAL PAYBACK PERIOD ? HOW MANY YEARS COMPARED TO A NEW VS EXISTING BLDG

A

10 to 80 YEARS

  • to overcome, through efficient operations,
  • the negative climate change impacts related to the construction process.
23
Q

WHAT IS THE MAGIC NUMBER (YEARS) FOR BLDGS

A

26 YRS

2050-2024 = COP TARGET!!!!!

24
Q

BUCHANAN BUILDING, UBC ISSUE?

A

DEMOLISH AND BUILD NEW VERSUS
RENOVATE EXISTING BUILDING

THEY DID A STUDY, AND LCC MAYBE THEY CAN REUSE IT?

25
Q

EPPAYBACK BUCHANAN BUILDING, UBC ISSUE?

A

38 YRS

26
Q

WHEN should the Net carbon emissions savings for the new building begin?

A

begin only after 38 years.

  • TOTAL CARBON EMISSIONS OVER 80 YEARS: ONLY 5% LOWER WITH NEW BUILDING = minimal and not worth it therefore keep the old, renovate it bc E.P.P DID NOT MAKE SENSE

IF EPP WAS 5 YRS, = ENERGY EFF. YES IT MAKES SENSE BUT 38 YRS WAS NOT

27
Q

WHY

A

B/C UPRONT CARBON EMITTED IS SO HIGH

  • TREMENDOUS CARBON EMISSIONS ARE BEING EMITTED= CAN’T BE IGNORED! EVEN IF IT’S LEED!
28
Q

UPFRONT CARBON

A
  • IS EMMITTED BEFORE A BLDG IS
  • OPERATIONAL AND
  • CAN SIGNIFICANTLY OUTWEIGH
29
Q

4 EXAMPLES OF STANDARD RATING SYSTEMS IN CANADA

A

1- LEED

2- PASSIVE HOUSE

3- BATIMENT PASSIF QUEBEC

4- NATIONAL ENERGY CODES OF CANADA 2020

30
Q

Functional statements ACCDNG TO energy code (4 LIMITS) W.A.T.E

A
  • Limit air leakage
  • Limit thermal transfer
  • Limit energy consumption
  • Limit water consumption
31
Q

WEAKNESS OF CODES

A

THEY ONLY CARE THE AMOUNT OF RVALUE OF R30 ON YOUR WALLS, THEY DON’T CARE WHAT TYPE OF INSULATION YOU USED
- DO MORE DAMAGE THAN GOOD, DON’T LOOK AT THE OPERATIONAL, BUT THE UPFRONT

32
Q

CONS WITH LEED

A
  • TOO WIDE RANGING
  • NOT FOCUSING ON CARBON/OPERATIONAL
  • POINTS ARE EASILY GET WITHIN THE IMPACT CATEGORIES
  • that demonstrates a minimum of 10% reduction
  • they just target the minimum and it’s pathetic that it’s very easy to attain Leed Certificate
33
Q

LCA & LEED - CASE STUDY
SOPREMA MANUFACTURIng FACILITY
WOODSTOCK, ONTARIO, 2019 ALL-NEW CONSTRUCTION, wch category are they aiming for the have points

A

Materials and Resources” (MR) category.

34
Q

5 elements of a structure and say it from highest to lowest % total mass of materials

S.S.I.O.R

A

Structure
Footings, foundations, below-grade insulation & membranes, ground floor slab
= 87%

Superstructure
Steel beams, columns, etc
= 6%

Interiors
= 4%

Outer envelope
Sandwich panels, aluminum cladding, glazing, metal studs, air & vapour barriers
=2%

Roofing
Membrane, insulation, green roof
=1%

35
Q

HOW TO ACHIEVE LEED POINTS IN THIS CATEGORY?

A
  • Minimum 10% reduction
  • in at least three of the six impact categories
  • one of which must be global warming potential.
36
Q

To wch bldg soprema was compared?

A

To a Reference Building not green
Per m^2

37
Q

2 most carbon emitting materials

A

Concrete and insulation

38
Q

Passive House Goal

A

Focused more on performance criteria of the building = energy efficiency performance

39
Q

Con of Passive House

A

R60 for this you got the passive medal

But again the type of ins used could be extremely polluting

40
Q

Lca example on a case study about roofs

A

Choose light coloured roofing

1- Painting roof white= worst + elastomeric

2- White epdm mebrane roof is good

3- Green roof worst= maintenance, plants, polluting

41
Q

C.i.r.a.i.g

A

Centre
International
De reference sur
L’analyse du cycle de vie
Et la transition durable

42
Q

Ways used to reduce heat island effect on roofs HIGH VS. LOW ALBEIDO

A

LET’S REDUCE THE HEAT ISLAND EFFECT BY REPLACING TRADITIONAL ROOFS WITH ALTERNATIVES

43
Q

4 High embodied carbon material examples b.s.s.d

A

Brick

Spray foam

Steel

Drywall

44
Q

Reduced Embodied Carbon Ins

A
  • cork
  • linoleum
  • fibreglass
  • cellulose very good and has a negative value
45
Q

Wch phase causes most emissions p.p

A

Product phase

ESTIMATION (15 decks)

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