SLIDE 1
The Prefab Revolution: How this re-emerging industry will lead to a - - PowerPoint PPT Presentation
The Prefab Revolution: How this re-emerging industry will lead to a - - PowerPoint PPT Presentation
The Prefab Revolution: How this re-emerging industry will lead to a more sustainable future for our planet, homes and economy Presented by: Johnny Hartsf i eld Barrett Eastwood Founder, Greenfab Project Manager, HyBrid EcoBuilding 2010:
SLIDE 2
SLIDE 3
EcoBuilding 2010: Green Design and Construction Symposium October 24, 2010
WHAT IS PREFAB?
SLIDE 4
EcoBuilding 2010: Green Design and Construction Symposium October 24, 2010
Introduction Henry Ford got it RIGHT!
SLIDE 5
EcoBuilding 2010: Green Design and Construction Symposium October 24, 2010
Introduction Not much has changed.
SLIDE 6
EcoBuilding 2010: Green Design and Construction Symposium October 24, 2010
A BRIEF HISTORY
SLIDE 7
EcoBuilding 2010: Green Design and Construction Symposium October 24, 2010
History of Prefab
1908 Sears Roebuck & Co. begins “houses by mail” program
SLIDE 8
EcoBuilding 2010: Green Design and Construction Symposium October 24, 2010
History of Prefab
1929 Buckminster Fuller designs Dymaxion House
SLIDE 9
EcoBuilding 2010: Green Design and Construction Symposium October 24, 2010
History of Prefab
1946 The war stimulates the market, Lustron Homes emerges
SLIDE 10
EcoBuilding 2010: Green Design and Construction Symposium October 24, 2010
History of Prefab
1976 U.S. Dept. of Housing and Urban Development (HUD)
SLIDE 11
EcoBuilding 2010: Green Design and Construction Symposium October 24, 2010
History of Prefab
2003 DWELL MAGAZINE Hosts Modular Design Competition
SLIDE 12
EcoBuilding 2010: Green Design and Construction Symposium October 24, 2010
PREFAB TYPES
SLIDE 13
EcoBuilding 2010: Green Design and Construction Symposium October 24, 2010
manufactured precut modular panelized (SIP)
Types of Prefab
SLIDE 14
EcoBuilding 2010: Green Design and Construction Symposium October 24, 2010
- built on non-removable steel frames
- built to the HUD Code
- sits on a permanent foundation
- a low cost alternative
Types of Prefab
The Manufactured Home (your grandma's DOUBLE-WIDE)
SLIDE 15
EcoBuilding 2010: Green Design and Construction Symposium October 24, 2010
- pre cut materials in factory
- delivered to site
- do-it-yourself process
Types of Prefab
The Pre Cut Home (your basic ERECTOR SET)
SLIDE 16
EcoBuilding 2010: Green Design and Construction Symposium October 24, 2010
- highly precise and very strong
- requires a lot of site work
- entry step into prefab
Types of Prefab
The Panelized Home (SIP's)
SLIDE 17
EcoBuilding 2010: Green Design and Construction Symposium October 24, 2010
Types of Prefab
The Modular Home (think LEGOS!)
- consists of larger units (mods)
- conforms to local codes
- craned into place
SLIDE 18
EcoBuilding 2010: Green Design and Construction Symposium October 24, 2010
THE BENEFITS OF PREFAB
SLIDE 19
EcoBuilding 2010: Green Design and Construction Symposium October 24, 2010
The Benef i ts of Prefab Construction
TIME: Shorter Construction Timeframe
Site work Foundation Framing Mechanical Insulation Site work Foundation Factory Construction
Finishing
Traditional site built construction: 9 – 12 months Modular construction: 3 – 4 months
Finishing
Increased VOLUME Increased PROFIT REDUCED Lending RISK HAPPY homeowners!
SLIDE 20
EcoBuilding 2010: Green Design and Construction Symposium October 24, 2010
The Benef i ts of Prefab Construction
COST: Eff i cient process = money saved
- Parallel processes save time/money
- Factory allows for bulk material purchase, economy of scale
- Can outcompete in areas where labor costs are higher
SLIDE 21
EcoBuilding 2010: Green Design and Construction Symposium October 24, 2010
The Benef i ts of Prefab Construction
HEALTH: Healthy Materials, Healthy People
- Materials stored and assembled in controlled environment
- Improved indoor air quality
- Safe work environment
SLIDE 22
EcoBuilding 2010: Green Design and Construction Symposium October 24, 2010
The Benef i ts of Prefab Construction
QUALITY:
- assembly line promotes highly skilled workers
- precise corners and angles with jigs
- quality control checks and automated equipment
SLIDE 23
EcoBuilding 2010: Green Design and Construction Symposium October 24, 2010
The Benef i ts of Prefab Construction
WASTE:
- 50-70% less waste
- Pre-ordering reduces material waste
- Many materials are optimized and recycled
SLIDE 24
EcoBuilding 2010: Green Design and Construction Symposium October 24, 2010
The Benef i ts of Prefab Construction
PLANET:
- Reducing construction carbon footprint
- Requires less energy to produce
- Save natural resources
SLIDE 25
EcoBuilding 2010: Green Design and Construction Symposium October 24, 2010
IN DEPTH: THE MODULAR HOME
SLIDE 26
EcoBuilding 2010: Green Design and Construction Symposium October 24, 2010
LET'S WATCH THIS IN ACTION!
SLIDE 27
EcoBuilding 2010: Green Design and Construction Symposium October 24, 2010
Media video content not available on pdf
SLIDE 28
EcoBuilding 2010: Green Design and Construction Symposium October 24, 2010
MODULAR DESIGN
SLIDE 29
EcoBuilding 2010: Green Design and Construction Symposium October 24, 2010
Modular Design
- Site conducive to craning
- Organization of services
- Minimize on-site connections
- Marriage line locations
- Module size
- 1. Longer boxes more eff
i cient
- 2. Smaller boxes for specif
i c situations
Begin Thinking MODULAR!
SLIDE 30
EcoBuilding 2010: Green Design and Construction Symposium October 24, 2010
Modular Design
- Effective way to communicate design intent to factory
- Component based modeling
- Schedules created/updated throughout design
- Factory equipment runs from BIM coding
Building Information Modeling (BIM)
SLIDE 31
EcoBuilding 2010: Green Design and Construction Symposium October 24, 2010
Modular Design
- Specify to factory preferred suppliers
- Understand limitations on detailing resulting from factory
construction process
- 1. Wall joints – fully sheathed and dry-walled when walls
come together
- 2. Rim Joists – electrical and plumbing often run in
double wall
- Understand size and width constraints and design alternatives
- 1. Hinged roof
- 2. Divisible loads
- Construct In-Place or Moving Assembly Line
It's important to understand the factory process
SLIDE 32
EcoBuilding 2010: Green Design and Construction Symposium October 24, 2010
THE MODULAR CONSTRUCTION PROCESS
Excavation / Utilities Foundation Factory Construction
Finishing
Ship Set
SLIDE 33
EcoBuilding 2010: Green Design and Construction Symposium October 24, 2010
The Modular Construction Process
Excavation / Utilities Foundation Factory Construction
Finishing
Ship Set
SLIDE 34
EcoBuilding 2010: Green Design and Construction Symposium October 24, 2010
The Modular Construction Process
Excavation / Utilities Foundation Factory Construction
Finishing
Ship Set
The Modular Construction Process
Excavation / Utilities Foundation Factory Construction
Finishing
Ship Set
SLIDE 35
EcoBuilding 2010: Green Design and Construction Symposium October 24, 2010
The Modular Construction Process
Excavation / Utilities Foundation Factory Construction
Finishing
Ship Set
- Better suited for “one-off” designs
- Gateway into modular construction
- More eff
i cient than on-site but less than assembly line process
- Can take up to two months
Construct In-Place
SLIDE 36
EcoBuilding 2010: Green Design and Construction Symposium October 24, 2010
The Modular Construction Process
Excavation / Utilities Foundation Factory Construction
Finishing
Ship Set
SLIDE 37
EcoBuilding 2010: Green Design and Construction Symposium October 24, 2010
The Modular Construction Process
Excavation / Utilities Foundation Factory Construction
Finishing
Ship Set
- Components move through stages
- Home starts construction once all materials are delivered
- Can handle large volume (10,000 s.f./week)
- Can take as little as one week
Moving Assembly Line
SLIDE 38
EcoBuilding 2010: Green Design and Construction Symposium October 24, 2010
SLIDE 39
EcoBuilding 2010: Green Design and Construction Symposium October 24, 2010
SLIDE 40
EcoBuilding 2010: Green Design and Construction Symposium October 24, 2010
The Modular Construction Process
Excavation / Utilities Foundation Factory Construction
Finishing
Ship Set
SLIDE 41
EcoBuilding 2010: Green Design and Construction Symposium October 24, 2010
The Modular Construction Process
Excavation / Utilities Foundation Factory Construction
Finishing
Ship Set
- Size restrictions
- Transportation restrictions
- The most stress a home will endure
- Added bracing to prevent damage
SLIDE 42
EcoBuilding 2010: Green Design and Construction Symposium October 24, 2010
The Modular Construction Process
Excavation / Utilities Foundation Factory Construction
Finishing
Ship Set
SLIDE 43
EcoBuilding 2010: Green Design and Construction Symposium October 24, 2010
SLIDE 44
EcoBuilding 2010: Green Design and Construction Symposium October 24, 2010
The Modular Construction Process
Excavation / Utilities Foundation Factory Construction
Finishing
Ship Set
- Specialized set crew
- Securing modules to foundation and each other
- Weather proof
i ng marriage lines
SLIDE 45
EcoBuilding 2010: Green Design and Construction Symposium October 24, 2010
The Modular Construction Process
Excavation / Utilities Foundation Factory Construction
Finishing
Ship Set
- Siding
Button-up (f i nishing) varies depending on each project, can include:
- Appliances
- Finished interior f
l oor
- Roof material
- Utility hook up
- Final interior/exterior paint
SLIDE 46
EcoBuilding 2010: Green Design and Construction Symposium October 24, 2010
LET'S WATCH THIS IN ACTION!
SLIDE 47
EcoBuilding 2010: Green Design and Construction Symposium October 24, 2010
Modular Installation Video
Media video content not available on pdf
SLIDE 48
EcoBuilding 2010: Green Design and Construction Symposium October 24, 2010
WHY PREFAB NOW?
SLIDE 49
EcoBuilding 2010: Green Design and Construction Symposium October 24, 2010
Why Prefab Now?
- Responds to down economy
- making homes more affordable
- decreasing lending risk
- Addresses the need for conservation
- saving materials
- decreasing/recycling waste
- depleting natural resources
- Meets the demand for tighter building envelope
- Supports the Building Science movement through quality
control and performance standards IT'S ABOUT VALUE!
SLIDE 50
EcoBuilding 2010: Green Design and Construction Symposium October 24, 2010
The new modern prefab homes
SLIDE 51