PPP Flashcards
PASS THE TEST
WHAT AER THE TYPES OF AIA CONTRACTS (A,B,C,D,G) BY SERIES?
- A Series: Owner + GC Agreement
- B Series: Owner + Architect Agreement
- C Series: Architect + Consultant Agreement (joint venture)
- D Series: Industry Standards Docs
- G Series: Contract & Office Admin Forms
SCHEDULING VARIES WITH EACH PROJECT, BUT GENERALLY SPEAKING, WHAT TIMELINE APPLIES TO THE FOLLOWING PHASES:
- SD
- DD
- CD
- Bid/Negotiation
- CA
- Contingencies
- SD: 1-2 months
- DD: 2-6 months
- CD: 3-7 months
- Bid/Neg: 3-6 weeks (contractors: 2 weeks to bid)
- CA: Varies
- Contingencies: 25-50% of length of project
WHAT ARE THE CHARACTERISTICS OF A FAST TRACK SCHEDULE?
- Construction documents are issued in phases and construction begins while design in still being finished.
- Req’s coordination between architects, contractors, and construction managers
- Req’s staged bidding which can result in multiple contractors
- Can reduce projec time by 10-30%
WHAT IS THE CRITICAL PATH METHOD?
All events expected to occur, and operations to be performed and completed, in a given process are rendered in a form according to place in project schedule, and expected duration.
The resultant CPM defines which events determine whether or not the entire project stays on schedule
- The diagram is called a Network Diagram
- Circles are start and finishes, arrows are tasks, numbers show the time for each task to occur
- Critical Path: the path with the longest req’d time from start to finish is the basis for the schedule. Activities on this path are called Critical Activities.
- Float: range of time during which non critical actiities can start/end without affecting the overall schedule
- Total Float: individual float times added together. Does not influence the CP time
WHAT IS A GANTT/BAR CHART?
A chart that illustrates start to finish dates of a project broken out by activity.
- Focus primarily on schedule mgmt rather than the size of the project or the relative size of the work elements/activities
- Can’t show the relationship between activities
WHAT ARE (4) RISKS OF SHORTENING PROJECT SCHEDULE?
- Requires people to work overtime (costly/inefficient)
- Requireds the need to hire more people (learning curve to project and office standards)
- If rushed, drawings can turn out poor, uncoordinated, etc.
- Generally causes higher costs for design and construction for a lower quality project
EXTENDING THE SCHEDULE BRINGS ON TWO MAJOR RISKS…
- Material cost inflation
- Personnel change (learning curve)
Also cost of money to be considered.
WHAT ARE FOUR THINGS THAT INFLUENCE PROJECT SCHEDULES?
- Size
- Complexity
- Number of workers
- Client action/reaction time (and to an extent, municipal review time)
WHAT ARE THE BREAKDOWN % FOR THE FOLLOWING ARCHITECTURAL PHASES?
- SD
- DD
- CD
- Bid/Negotiation
- Construction Admin
- SD: 15%
- DD: 15%
- CD: 35%
- Bid/Negotiation: 5%
- CA: 30%
Note* Project Closeout is sometimes broken out to approx 2-5%
DESCRIBE PROJECT CALENDAR DAYS…
number of working days, x5 or x7
THE APPROPRIATE TYPE OF COST ESTIMATING FOR A BUILDING DEPENDS ON THE PHASE OF THE PROJECT IT’S DEVELOPED TO. WHAT ARE THE FOLLOWING ESTIMATES BASED ON?
- Pre-planning/Proposal
- Programming
- SD
- DD
- CD
- Pre-planning/Proposal: based on unit costs (cost per person, cost per bed, cost per sq. ft., etc)
- Programming: based on unit costs system (cost/sq ft) based on similar building typeds and/or functions of space
- SD: based on the major elements of each building system (mechanical, electrical, plumbing, structure)
- DD: based on detailed components (curtain walls, storefronts, lay-in ceilings, etc.)
- CD: based on unit rates for construction, assemblies, and systems. this estimate is waht pre-bid checks and cost breakdowns are based on
TRUE/FALSE
AN ARCHITECT’S ESTIMATES SHOULD ACCOUNT FOR INFLATION, MARKET CONDITIONS, AND CONTRACTOR MEANS AND METHODS…
FALSE
FACT: Cost Projection Goals
- Complete the project within the financial limits set by owner
Provide an appropriate use of resources/value for the money within the budget
Optimize longer-term life cyclee costs by examining alternatives that offer the best balance between upfront costs and maintenance costs
Provide the owner with relative implications to the budget based on owner decisions throughout the project duration
COST PROJECTIONS FOR A PROJECT ARE BASED ON WHAT FOUR FACTORS?
- Cost Factors: what influences the project
- Project Scope: what’s included in the building
- Quality: How nice the building will be (construction, technologies, finishes)
- Budget: how much the owner can spend
FACT: It is normal practice to anticipate construction cost escalation on the basis of an annual increase projected to the midpoint of construction.
WHAT ARE THE COMPONENTS OF A PROJECT BUDGET (8)?
- Site Acquisition
- Off site construction/Utility
- On site construction
- Building construction
- Professional services
- Inspection and Testing
- Financing
FACT: Construction Cost is the total amount of $$ to build a project. 85% of that is the Construction Budget, 15%-40% is for contractor overhead and profit, and and additinal 15% is added for surveys, soil testing, fees, and FF&E.
WHAT ARE THE TRADITIONAL CONTRACTOR FEE PERCENTAGES FOR:
- GENERAL OVERHEAD
- PROJECT OVERHEAD
- PROFIT
Contractor Fees:
- General Overhead: 8-10% of firm value
- Project Overhead: 4-10% of construction cost
- Profit: 15-20% small jobs, 10-15% large jobs, 5-10% very large jobs
WHAT ARE THE TRADITIONAL DESIGN FEE PERCENTAGES FOR THE FOLLOWING PROFESSIONS:
- ARCHITECTURE
- MECHANICAL
- ELECTRICAL
- CIVIL
- STRUCTURAL
- Architecture: 10% of construction cost
- Mechanical: 15%
- Electrical: 12.5%
- Civil: 10.5%
- Structural: 9.5%
WHAT PERCENT CONTINGENCY SHOULD BE ADDED TO COMPLEX OR REMODEL JOBS?
5-10% contingency should be added for unforseeables
DESCRIBE A UNIT PRICE CONTRACT…
a contract based on the acceptance and incorporation of unit price quotes for the various portions of the project
DESCRIBE THE HOURLY BILLING RATE FEE STRUCTURE…
project is biled at standard rates for every hour worked. Often this is to a “not to exceed” value
DESCRIBE THE PROFESSIONAL FEE PLUS EXPENSES FEE STRUCTURE…
Professional services are separated from the identified costs (reimbursables, consultants, etc.)
WHAT IS DPE?
Multiple of Direct Personnel Expense: fringe benefits are included in direct salary/wages. That expense is multiplied by a factor to cover overhead and profit
WHAT IS DSE?
Multiple of Direct Salary Expense: everyone’s direct salary/wages multiplied by a factor to cover fringe benefits (e.g. employee health insurance, overhead, and profit)
THERE ARE MULTIPLE METHODS (7) OF CALCULATING ARCHITECTURAL FEES, NAME THEM…
- DSE (Multiple of Direct Salary Expense
- DPE (Multiple of Direct Personnel Expense)
- Professional Fee + Expenses (Time + Expense)
- Hourly Billing Rate
- Stipulated/Lump Sum
- Percentage of the cost of work
- Unit Price Contract
WHAT’S THE DIFFERENCE BETWEEN A GENERAL OBLIGATION BOND AND A REVENUE BOND?
A General obligation bond is used to finance non-revenue collecting facilities (roads, bridges, parks, etc)
A Revenue bond is used to finance facilities that collect revenue (tolls, etc)
IN THE FINANCIAL SENSE, DEFINE DEPRECIATION
a federal tax benefit with the idea that a building loses value as it ages
DEFINE THE TERM “COST OF MONEY”…
principal and interest payments owed from borrowing money
WHAT IS A PRO-FORMA?
a financial analysis of a building project, helps define the cost/return on a property or project investment
WHAT IS VALUE ENGINEERING?
the process used to get the best value for the project using similar, but more affordable materials and techniques.
WHAT IS A UTILIZATION RATIO?
A ratio used by firms to determine the amount of time spent on billable work as a percentage of total time the employee is compensated.
UR = billable hours/total hours
AN ITEMIZED BREAKDOWN IS REQ’D FOR WHAT KIND OF COST ESTIMATE?
Detailed Cost Estimate
WHAT ARE PRELIMINARY COSTS ESTIMATES BASED ON?
Sq. Ft. cost estimates, based on occupancy, size and type of construction
WHAT IS A JOINT VENTURE AGREEMENT?
A contractual union between two or more firms for one or more specific projects.
Characteristics:
- Enables firms to combine key resources while allowing each participating firm to pursure other projects
- Essentially a partnership
- Retains no, and pays no income taxes…it passes profits, losses, and tax liabilities to its participating members
- Participating firms are individually and jointly liable ot the client for the services offered by the joint venture
- Typicaly formed only for the purpose of seeking a specific project. e.g. an international firm joins with a local firm to complete a project
WHAT IS A MULTIPLE PRIME AGREEMENT?
A design professional holds an agreement directly with the owner r their project manager. The owner may:
- Provide overall coordination of multiple prime design professionals including the architect, through in-house staff
- Assign coordination to a project/program manager
- Allocate coordination to one of the design professionals…maybe the architect
WHAT IS AN ARCHITECT/CONSULTANT AGREEMENT?
…WHO ASSUMES RESPONSIBILITY FOR A MISTAKE?
- In this agreement, the Architect assumes primary contractual reponsibility to the owner for the accuracy and completeness of the work of the architect’s consultants
- Agreement should parallel owner-architect agreement
FACTS: ABOUT ARCHITECT/CONSULTANT RELATIONSHIP…
- Architect’s coordination reponsibilities should be limited to coordinating services with consultants or other design professionals hired by owner
- All design professionals should be contractually obligated to coordinate their services with those of the architect, regardless of who they have a contract with
- The Architect should never assume reponsibility for internal coordination of any other design professional’s work
WHAT ARE THE KEY PROFESSIONAL DELIVERY METHODS BETWEEN OWNERS AND ARCHITECTS
with consultants, Multiple Prime, and Joint Venture
WHAT IS UNBUNDLING?
When an owner structures their own project teams, lead by a third party project manager
NAME FIVE CHARATERISTICS OF A HEATHY INDOOR ENVIRONMENT
- Daylight: Ample daylight and proper ventilation lead to greater satisfaction, more comfort and increased productivity
- Fresh Air: Supply fresh outdor air, use passive ventilation or “Mixed-mode” systems in larger buildings that supply a mix of fresh/mechanical air
- Views: Offer natural light and views to the outdoors with windows, skylights, light shelves, and the use of light colors
- Temperature: Control temperature and humidity with passive and mechanical technologies that are individually controlled buy occupants
- Low Humidity: prevent moisture build up
NAME FIVE CHARATERISTICS OF A HEATHY INDOOR ENVIRONMENT
- Daylight: Ample daylight and proper ventilation lead to greater satisfaction, more comfort and increased productivity
- Fresh Air: Supply fresh outdor air, use passive ventilation or “Mixed-mode” systems in larger buildings that supply a mix of fresh/mechanical air
- Views: Offer natural light and views to the outdoors with windows, skylights, light shelves, and the use of light colors
- Temperature: Control temperature and humidity with passive and mechanical technologies that are individually controlled buy occupants
- Low Humidity: prevent moisture build up
DESIGN IN CORRECT CLIMATE
NAME BUILDING CHARACTERISTICS THAT SHOULD BE INCORPORATED IN A COLD CLIMATE…
- Orient buildings/openings for maximum protection from cold winds
- Use small windows/compact shapes to minimize heat loss
- Use South facing windows to maximize solar gain
DESIGN IN CORRECT CLIMATE
NAME BUILDING CHARACTERISTICS THAT SHOULD BE INCORPORATED IN A TEMPERATE CLIMATE…
- Maximize solar gain in the winter, minimize in summer
- Maximize summer breezes, minimize in winter
- Take advantage of daylighting opportunities
DESIGN IN CORRECT CLIMATE
NAME BUILDING CHARACTERISTICS THAT SHOULD BE INCORPORATED IN A HOT & HUMID CLIMATE…
- Minimize sun exposure
- Maximize natural ventilation
- Use lightweight construction to minimize radiation of heat
- Space buildings far apart for breezes
DESIGN IN CORRECT CLIMATE
NAME BUILDING CHARACTERISTICS THAT SHOULD BE INCORPORATED IN A HOT & DRY CLIMATE…
- Minimize sun exposure and effects of wind.
- Use small windows
- Optimize thermal mass for large temperature swings
- Closely cluster buildings for the shade they offer each other
FACT: HEAT LOSS IN GLASS IS ABOUT 20x THAT OF AN INSULATED WALL.
HOW MUCH TIME DO NORTH AMERICANS SPEND INDOORS?
90% :(
IN THE US, ABOUT HOW MANY SQ FT OF BUILDING AREA WILL BE CONSTRUCTED/REMODELED BY 2035?
300 Billion
WHAT IS THERMAL INERTIA?
The ability of a material to store heat (concrete/masonry walls store heat in an arid climate and release it slowly at night.
AKA heat sink.
HOW DOES THE U-FACTOR DIFFER FROM THE R-VALUE OF A MATERIAL?
- U-factor is a measure of heat transmission, it considers both conduction and radiation, and used for building assemblies (windows = glass + frame components).
- Low U-value has slow heat loss or gain (brick wall)
- High U-factor has a rapid heat loss or gain (metal)
- R-value is the measure of thermal resistance in a homogenous component (insulation). Used to define level of insulation.
HOW DOES THE U-FACTOR DIFFER FROM THE R-VALUE OF A MATERIAL?
- U-factor is a measure of heat transmission, it considers both conduction and radiation, and used for building assemblies (windows = glass + frame components).
- Low U-value has slow heat loss or gain (brick wall)
- High U-factor has a rapid heat loss or gain (metal)
WHAT IS ORGANIC FEEDSTOCK?
Something organic (wood fiber, paper, cotton, etc.) that mold can use as an energy soure. Mold cannot eat inorganic materials like concrete, brick, or gypsum (but it loves the paper on drywall)
WHAT IS LIFE CYCLE COSTING?
It provides a tool for determining long-term costs for the total building
DEFINE BUILDING COMMISSIONING FOR BUILDING SYSTEMS…
The process of ensuring that systems are designed, installed, and functionally tested for effective operation/maintenance for an owner’s operational needs.
WHAT IS BIOPHILIA?
The connections that humans subconsciously seek with the rest of life.
FACT: WHEN DETERMINING FORM, DEFINE STRUCTURE AND SYSTEMS (EXPOSED OR HIDDEN), AND PURSUE HONEST TECHTONIC FORM (MATERIALS DO WHAT THEY SHOULD, NOT MIMIC OTHERS)
A BUILDING’S SCALE, PROPORTION, HARMONY, AND HIERARCHY SHOULD BE DEFINED AS IT COMPARES TO THE ________.
Human Body
TRUE OR FALSE:
IT IS IMPORTANT TO ADDRESS SURROUNDING TRADITIONAL FORMS (DOMES, SPIRES, ROOF TYPES, ELEVATION PATTERNS) WHEN DESIGNING A BUILDING.
True.
IN DETERMINING FORM, AN ARCHITECT SHOULD DEFINE THE RELATIONSHIP BALANCE BETWEEN…
Building and Site
- A bold site with subtle building or visa versa
- Take cues from surrouding site/nature and blend together (shakkei/borrowed scenery) or use to dictate form (roof pitches mimic pitch of mountains)
IT’S IMPORTANT TO ADDRESS BUILDING ORGANIZATIONAL FACTORS.
NAME THREE…
- Site: Soil conditions, topography, water, sun angles, wind, noise
- Movement Patterns: pedestrian and vehicular access and circulation, distribution of utilities (centralized or stacked for more efficiency)
- Patterns of Growth: flexible for future use
IT’S IMPORTANT TO ADDRESS BUILDING ORGANIZATIONAL VALUES.
NAME FIVE…
- Behavioral Interests: desired spaces to perform tasks
- Circulation: Ease of movement around site and building
- Health: reduce stressors (noise, crowding, sun glare, sick building syndrome)
- Adaptability: allow for future changes, modifications, and flexibility
- Cost: use regulr forms, plans, and compact arrangements
FACT: ORGANIZATIONAL PATTERNS ARE DETERMINED BY SITE CONDITIONS AND FUNCTIONAL REQUIREMENTS
WHAT IS THE TYP BUILDING EFFICIENCY FOR A DEPARTMENT STORE?
80%
WHAT IS THE TYP BUILDING EFFICIENCY FOR A JAIL/PRISON OR OFFICE?
75%
WHAT IS THE TYP BUILDING EFFICIENCY FOR A BANK, AUDITORIUM, OR RESTAURANT?
70%
WHAT IS THE TYP BUILDING EFFICIENCY FOR A CLASSROOM, ADMIN, OR APARTMENT?
65%
WHAT IS THE TYP BUILDING EFFICIENCY FOR A COLLEGE, STUDENT UNION, COURT HOUSE, OR RETAIL STORE?
60%
WHAT IS THE TYP BUILDING EFFICIENCY FOR A HOSPITAL?
55%
NAME FOUR DESIGN PRINCIPLES OF PARKING…
- Most efficient layouts are 90˚ perpendicular spaces, which allow for the max. amount of spaces and two way traffic
- Cheapest parking to build is an outdoor lot, then parking structure, then underground parking
NAME FOUR DESIGN PRINCIPLES OF HOSPITALS…
- Highly specialized and complex building type
- Standard single patient rooms are 150 sq ft and double rooms are 200 sq ft (they share bathroom + lavatory)
- Nurse stations should monitor 25-35 beds and be centrally located
NAME FOUR DESIGN PRINCIPLES OF THEATERS…
- Stage dimensions, seating and site lines vary with theater type and performance
- Types of stages include Proscenium (most common, audience in front of stage, Theater in the Round (audience on all sides), and Thrust Stage audience on three sides
- Optimum depth of seating is 4-5x the stage width
- Maintain a 30˚ viewing angle from the front row to the stage
NAME FOUR DESIGN PRINCIPLES OF CHURCHES…
- Form is determined by ritual, standards, and history. (e.g. cathedral vs. mosque)
- Address sight lines, acoustics, procession, seating, existing congregation size and projected growth
- Historical (pre-ecumenical) organization was axial while contemporary organization is more rectangular/circular allowing for intimacy and unity
NAME FOUR DESIGN PRINCIPLES OF SCHOOLS…
- Seperate noisy spaces (gym, cafeteria, commons) from quite spaces (classrooms)
- Designed to mimic surrounding neighborhood character
- Address visibility, acoustics, temperature, human scale (kid sized vs. teacher sized), comfort, stimulation, and security
- Design for teaching type (private classrooms, team teaching, open plan, etc.)
- Standard classrooms = 800 sq ft - 1,000 sq ft
NAME FOUR DESIGN PRINCIPLES OF HOTELS…
- Seperate public and private spaces from service areas/ back of house
- Service spaces should be available on each floor
- Unit of measure is the bed size, rooms should be sized accordingly (e.g. a room with a king bed should be proportianllay larger than one with a full bed)
- Typical US room size = 12’-6” x 20’-0”
URBAN ORGANIZATIONAL PATTERNS:
WHAT ARE THE DESIGN PRINCIPLES OF A SHEET PATTERN?
Extensive urban area without a focal point, routes, or forms (aka sprawl)
URBAN ORGANIZATIONAL PATTERNS:
WHAT ARE THE DESIGN PRINCIPLES OF A MULTIPLE NUCLEI PATTERN?
Several sub centers connected to each other
- Finger Plan: Development occurs along transportation routes
- Cluster Plan: varying center of activities
- Satellite Plan: similar to cluster, but with a distinct center (old city center)
URBAN ORGANIZATIONAL PATTERNS:
WHAT ARE THE DESIGN PRINCIPLES OF A CONCENTRIC PATTERN?
- A business center in the core with concentric rings outward. Rings blend into one another
Original Business Center > Old housing/factories > circa 1900’s suburbs > post WWII suburbs (low density sprawl)
URBAN ORGANIZATIONAL PATTERNS:
WHAT ARE THE DESIGN PRINCIPLES OF A GRID PATTERN?
- Flexible, compact, and standardized layout of blocks used for complex distribution of uses. Can be boring without points of focus. Used in most U.S. cities.
URBAN ORGANIZATIONAL PATTERNS:
WHAT ARE THE DESIGN PRINCIPLES OF A RADIAL PATTERN?
- A center core where elements have a common origin or destination. It’s somewhat inflexible, but compact and allows for maximum interaction.
URBAN ORGANIZATIONAL PATTERNS:
WHAT ARE THE DESIGN PRINCIPLES OF AN AXIAL PATTERN?
- Like Linear Pattern (arranged in a line connected by a transportation spine), but in two directions
URBAN ORGANIZATIONAL PATTERNS:
WHAT IS A MEGALOPOLIS?
An extensive linear arrangement of cities.
URBAN ORGANIZATIONAL PATTERNS:
WHAT ARE THE DESIGN PRINCIPLES OF A LINEAR PATTERN?
- Arranged in a line connected by a transportation spine (used when major circulation occurs between two points)
- Lacks a focus or center and can be congested
- Typically not used when limited by the availablity of land
WHAT IS THE DIFFERENCE BETWEEN A STATIC AND A DYNAMIC FORM?
Static Form: parts are equal in sie and located around a reference axis.
Dynamic form: parts are unequal in size and tend to have visual movement or direction.
WHAT IS SYMMETRY?
Balanced arrangements, typically in reference to formal design.
WHAT IS RHYTHM?
It’s the regular occurance of elements in time or space.
WHAT IS THE GOLDEN SECTION?
It’s a Renaissance concept where a whole is divided so that the smaller part has the same relationship to the larger part, as the larger part has to the whole.
As a math equation: (a+b)/a = a/b
DEFINE PROPORTION…
The relationship between parts that provides a harmonious order.
WHAT IS A SHAKKEI?
Japanese term for “borrowed scenery”. It refers to incorporating background landscape into the composition of a garden. Deffering the design focus to the natural environment rather than the built.
WHAT IS A LOOP ROAD?
A collector/distributor road into a shopping center
In Minneapolis, highways 94/394/694
WHAT ARE CARDO AND DECUMANUS?
…WHERE DO THE TERMS ORIGINATE FROM?
The two major streets in a Roman town.
Cardo: N/S street, usually was main street
DECUMANUS: E/W street, perpendicular to Cardo
Intersection of Cardo Maximus and Decumanus Maximus was main interesection in town/village. e.g. Pompeii (image)
WHAT ARE FOUR METHODS TO CONTAIN/MINIMIZE EXPOSURE TO LEAD DURING REMOVAL?
- If disturbing more than 6 sq ft of lead paint in homes, child care facilities, or a school built before 1978, the work must be done by contractors certified by the EPA.
- Contain work area
- Minimize dust
- Clean up thoroughly
WHAT ARE FIVE METHODS TO CONTAIN/MINIMIZE EXPOSURE TO ASBESTOS FIBERS DURING REMOVAL?
- Wet Methods
- HEPA Vacuuming
- Area Isolation
- Use of PPE (Personal Protective Equipment)
- Avoid sawing, sanding and drilling
Note: Loose asbestos is referred to as “Friable”
KNOW THE EFFECTS LEAD EXPOSURE HAS TO BOTH CHILDREN AND ADULTS.
Children: Damage to brain/nervous system, behavioral and learning problems (hyperactivity), slowed growth, hearing problems, headaches
Adults: Reproductive issues, high blood pressure, nerve disorders, memory/concentration problems, muscle and joint pain
KNOW THE EFFECTS LEAD EXPOSURE HAS TO BOTH CHILDREN AND ADULTS.
Children: Damage to brain/nervous system, behavioral and learning problems (hyperactivity), slowed growth, hearing problems, headaches
Adults: Reproductive issues, high blood pressure, nerve disorders, memory/concentration problems, muscle and joint pain
WHAT IS ASBESTOSIS?
Non-cancerous, chronic respiratory disease caused by accumulation of asbestos fibers in the lungs
ASBESTOSIS, LUNG/STOMACH/COLON CANCER, AND MESOTHELIOMA ARE ALL HEALTH HAZARDS KNOWN TO EXIST FROM EXPOSURE TO ________.
ASBESTOS.
*NOTE: Most serious of all diseases from exposure to asbestos is mesothelioma (cancer of the chest and abdomen lining)
FACT: Laboratory analysis is the only way of positively identifying asbestos.
WHAT YEAR DID THE EPA BAN SPRAY APPLIED ASBESTOS?
1973
WHAT WAS ASBESTOS ORIGINALLY USED FOR?
Spray fireproofing, sound proofing, pipe insulation, floor/ceiling tiles, mastic, etc.
WHAT ARE THE THREE COMMON TYPES OF AESBESTOS FOUND IN BUILDINGS?
- Chrysotile: white asbestos, accounds for about 95% of aesbestos found
- Amosite: brown asbestos
- Crocidolite: blue asbestos