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Enclosure Design Training AIA Portland August 2016 Martin Houston AIA, CSI, LEED AP Walsh Construction Co. CLEAResult Energy Trust of Oregon

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Page 1: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

Enclosure Design

Training

AIA Portland

August 2016

Martin Houston

AIA, CSI, LEED AP

Walsh Construction Co.

CLEAResult

Energy Trust of Oregon

Page 2: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

Enclosure Design Training

• The role of the Building Enclosure in the creation

of Low Energy Buildings

• Critical Barriers (Control Layers)

• The Thermal Control Layer

• The Air Control Layer

2

Page 3: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

Presentation Outline

• Definitions

• Control Layers

• The Thermal Control Layer

• The Air Control Layer

3

Page 4: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

Definition:

Water Vapor

Water in it’s gaseous state

4

Page 5: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

Definition:

Water Vapor

Water in it’s gaseous state

5

Page 6: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

Definition:

Water Vapor Diffusion

The process by which water vapor spreads or

moves through permeable materials caused

by a difference in water vapor pressure.

6

Page 7: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

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Page 8: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

Definition:

Vapor Permeability

Permeability, rated in Perms, is a measure of

the rate of transfer of water vapor through a

material.

The higher the number, the easier it is to pass

water vapor through a material.

8

Page 9: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

Vapor Permeability of

Standard Building Materials

1. Polyethylene .06

2. XPS Rigid 1

3. OSB 2

4. Plywood 3.5

5. EPS Rigid 3.5

6. 15# Felt 6

7. 2 PSJTX 11

8. Tyvek CW 23

9. Cat5 18

10. Vaproshield 50/212

9

Page 10: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

Definition:

Condensation

Condensation is the change in the phase of

water from the gaseous phase into liquid

droplets or solid grains .

10

Page 11: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

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Page 12: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

Definition:

Dew Point

• The dew point is the temperature to which a

given parcel of air must be cooled, at

constant barometric pressure, for water vapor

to condense into water.

12

Page 13: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

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Page 14: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

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Page 15: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

Pop Quiz

1. How many of you know the difference

between an air barrier, a weather resistive

barrier and a vapor barrier?

2. How many materials do you need to have all

three in one wall

15

Page 16: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

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Page 17: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

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Page 18: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

The Path to Low Energy Buildings

1

2

3

4

18

Basic Building

Design

Enclosure

MEP

On-site Renewable

Energy

Page 19: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

The Path to Low Energy Buildings

1

2

3

4

19

Basic Building

Design

Enclosure

MEP

On-site Renewable

Energy

Load Reduction

Page 20: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

The Path to Low Energy Buildings

1

2

3

4

20

Basic Building

Design

Enclosure

MEP

On-site Renewable

Energy

Load Reduction

Meeting loads as

efficiently and cleanly

as possible…

Page 21: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

The Path to Low Energy Buildings

1

2

3

4

21

Basic Building

Design

Enclosure

MEP

On-site Renewable

Energy

Load Reduction

Page 22: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

Enclosure – Key Attributes

• Insulation

• Airtightness

• Optimized

Glazing

22

Page 23: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

Basic Building Design (BBD)

• Low energy building design should focus first

on a few basic building design concepts:

– Building size & shape • As small as possible for the given program

• As compact as possible for the given program, relative to climatic

factors

– Building orientation

– Optimized glazing design

23

Page 24: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

24

E-W Orientation = 5%-6% Reduction in Annual Energy Use

Page 25: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

Dwg: Building Shape

25

All contain about 8 volume units-

What about surface area?

Page 26: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

Enclosure Area to Volume Ratio

Page 27: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

Enclosure Area to Volume Ratio

Page 28: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

BBD

• Optimized Glazing Design – i.e. windows

sized, configured and oriented to optimize

daylighting, views and solar gain

– Window-to-wall ratio managed to avoid excessive

heat loss while allowing for daylighting and views

– Glazing systems designed to avoid excessive solar

gain – i.e. glass coatings, shadings, etc.

– Use well-insulated & airtight glazing systems

28

Page 29: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

29

Window to Wall Ratio

Page 30: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

Window-to-Wall Ratio

Assume: Window=U-0.33, Wall=R-15

Page 31: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

Window-to-Wall Ratio: 10%

Page 32: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

Window-to-Wall Ratio: 50%

Page 33: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

Window-to-Wall Ratio: 90%

Page 34: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

Critical Barriers

• Water-Shedding Surface Rain Penetration Control

• Water-Resistive Barrier Rain Penetration Control

• Thermal Barrier Thermal Control – Controls conductive and radiant heat flow

• Air Barrier Air Leakage Control – Controls air flow / convective heat flow

• Vapor Barrier Vapor Diffusion Control

34

Page 35: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

Critical Barriers

• Water-Shedding Surface Rain Penetration Control

• Water-Resistive Barrier Rain Penetration Control

• Thermal Barrier Thermal Control – Controls conductive and radiant heat flow

• Air Barrier Air Leakage Control – Controls air flow / convective heat flow

• Vapor Barrier Vapor Diffusion Control

35

Page 36: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

Critical Barriers

Thermal Barrier

Exterior

Stucco Cladding

Air Space

Sheathing Paper

Exterior Sheathing

Insulated Stud Space

Polyethylene Sheet

Interior Gypsum Board

Interior

Critical Barriers:

Vapor Barrier /Vapor Retarder

Air Barrier

Water Resistive Barrier

Water Shedding Surface

Exterior Interior

Source: RDH Building Sciences

Page 37: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

Continuity – A Key Principle

• Continuous barriers are required to achieve

effective thermal and moisture performance

• Continuity of critical barriers must be

provided, not just at field areas, but also at

interface conditions

– Transitions

– Penetrations

– Terminations

37

Page 38: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

VAPOR BARRIER

AIR BARRIER

WATER-RESISTIVE BARRIER

WATER SHEDDING SURFACE

AIR BARRIER

VAPOR BARRIER

WATER-RESISTIVE BARRIER

WATER SHEDDING SURFACE

Continuity

Page 39: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

Continuity – A Key Principle

• Lack of continuity at critical barriers may result

in:

– Water leakage

– Air leakage

– Thermal bridging

– Condensation

39

Page 40: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

Continuity – A Key Principle

• Lack of continuity at critical barriers may result

in:

– Water leakage

– Air leakage

– Thermal bridging

– Condensation

• Leading to:

– Poor energy performance

– Comfort problems

– Durability problems

40

Page 41: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

Design of Critical Barriers

• Designer of the building enclosure should be

able to trace the continuity of each critical

barrier through the enclosure system

• Begin with building sections / wall sections

• Continue with foundation, wall and roof details

• Ensure continuity of all five barriers

41

Page 42: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

Tracing the

Barriers

42

Page 43: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

Thermal

Barrier (TB)

43

Page 44: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

Water-shedding

Surface (WSS)

44

Page 45: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

Water-resistive

Barrier (WRB)

45

Page 46: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

Air Barrier

(AB)

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Page 47: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

Vapor Barrier

(VB)

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Page 48: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

Durability - A Key Principle

• If it doesn’t last very long, it’s not very

sustainable

• Selection and use of durable materials - suited

to the application / exposure - is critical

• Effective enclosure detailing for watertightness,

airtightness and thermal resistance is essential

to achieving both energy performance and

long term durability

48

Page 49: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

The Air Barrier

• The air barrier is the system of materials that

controls air leakage / convective heat flow

through the building enclosure

• The air barrier is not one material but instead

is an integrated system of many different

materials/components

49

Page 50: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

The Problem of Air Leakage

• Air leakage accounts for 20-40% of the heat

loss through building enclosures…

• Air leakage = higher energy costs

• Air leakage = larger carbon footprint

• Air leakage = reduced water penetration control

• Air leakage = increased condensation risk

• Air leakage = poor airflow control

– Impacts reliability of ventilation system design

50

Page 51: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

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Source: State of Wisconsin Minimium Requirements for the Building Envelope

Page 52: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

Air Barrier - Definitions

• Air barriers are defined by their air permeance

• Air Barrier Association of America (ABAA) has taken lead position in developing and promulgating standards

• Now incorporated in many codes - including WSEC

• “Materials” – ≤ 0.04 cfm/sf @ 1.57 psf pressure differential

– ASTM E 2178, Standard Test Method for Air Permeance of Building Materials

52

Page 53: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

Air Barrier - Definitions

• “Assemblies” – A collection of air barrier materials and air barrier

components assembled together in a specific manner to create continuity (ABAA)

– ≤ 0.04 cfm/sf @ 1.57 psf

– ASTM E 2357, Standard Test Method for Determining Air Leakage of Air Barrier Assemblies

53

Page 54: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

Air Barrier - Definitions

• “System” – An air barrier system is a system of building

assemblies within the building enclosure designed, installed, and integrated in such a manner as to stop the uncontrolled flow of air into and out of the building enclosure (ABAA)

– A whole building air barrier is a system

– ≤ 0.40 cfm/sf @ 1.57 psf

– ASTM E 779, Standard Test Method for Determining Air Leakage Rates by Fan Pressurization

– Alternate standard: ≤ 0.25 cfm/sf @ 1.57 psf (USACE)

54

Page 55: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

Air Barrier - Materials

• Exterior cladding

• Sealants

• Flashings (membrane flashing, metal flashing)

• Windows

• Doors (poor AB)

• Housewraps (e.g. Tyvek)

• Wall membranes (e.g. “peel & stick”)

• Roof membranes

• Drywall

• Polyethylene sheet 55

Page 56: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

Photo - Air Barrier

56

Page 57: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

Air Barrier - Materials

• Material selection criteria includes:

– Air permeance

– Vapor permeance

– Water resistance (if serving as WRB also)

– Cost

– Constructability

– Availability

• Location / placement of air barrier relative to

insulation location is major determinant

57

Page 58: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

Air Barrier - Approaches

• Interior Side

– Airtight Drywall Approach

– Sealed Polyethylene Approach

• Exterior Side

– Exterior Sheathing Approach

– Sheathing Membrane Approach (“housewrap”)

• Where cavity insulation approach is used

• Vapor permeable

58

Page 59: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review
Page 60: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review
Page 61: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

Air Barrier - Approaches

• Exterior Side

– Exterior Sheathing Approach

– Sheathing Membrane Approach (“housewrap”)

• Where cavity insulation approach is used

• Vapor permeable

– Sheathing Membrane Approach (“peel & stick”)

• Where exterior insulation approach is used

• Vapor impermeable

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Page 62: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review
Page 63: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

Air Barrier - Approaches

• Exterior Side

– Exterior Sheathing Approach

– Sheathing Membrane Approach (“housewrap”)

• Where cavity insulation approach is used

• Vapor permeable

– Sheathing Membrane Approach (“peel & stick”)

• Where exterior insulation approach is used

• Vapor impermeable

– Sheathing Membrane Approach (fluid-applied)

• Vapor permeability dependent on whether cavity

insulation or exterior insulation approach is used

63

Page 64: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review
Page 65: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

Air Barrier - Continuity

• To design and construct a complete air barrier system for the building, continuity must be provided at interfaces between all materials and components…

• Easier said than done!

65

Page 66: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

Air Barrier - Continuity

• Key Details for Air Barrier Continuity: – Wall to foundation

– Roof to wall

– Floor lines

– Window and door perimeters

– Other penetrations

– Transitions between wall types

– Transitions between cladding materials

66

Page 67: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

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Page 68: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

Airtightness & IAQ

• Mechanical ventilation becomes increasingly important as building airtightness increases

• Effectiveness - and efficiency - of ventilation system becomes more highly critical to ensuring overall building performance, including indoor air quality… – Dedicated fresh air delivery to each space

– Controlled air flow between spaces

– Controlled ventilation rates

– Heat recovery from exhaust air

68

Page 69: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

THE THERMAL BARRIER

Can you say “yellow light”?

Page 70: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

70

THE THERMAL BARRIER

Page 71: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

The Thermal Barrier

• The thermal barrier is the system of materials

that controls conductive and radiant heat flow

through the building enclosure

• Insulation - yes - but many other materials

too…

71

Page 72: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

Thermal Barrier Problems

• Thermal Bridges

• Insulation Material Selection

• Insulation Installation Defects

72

Page 73: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

73

Get your thermal bridge on

Page 74: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

74

Thermal Bridging

Page 75: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

Thermal Barrier Problems

• Thermal Bridges

• Insulation Material Selection

• Insulation Installation Defects

• Glazing Assemblies

75

Page 76: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

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Page 77: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

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Page 78: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

Thermal Barrier Problems

• Thermal Bridges

• Insulation Material Selection

• Insulation Installation Defects

• Glazing Assemblies

78

Page 79: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

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Page 80: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

Thermal Bridges

• Exterior Wall Framing Members

– Light gauge steel framing

– Wood framing

80

Page 81: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

R-Value Comparison

81 Source: Robert Bombino

Page 82: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

Photo - Light Steel Frame Walls

82

Page 83: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

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Page 84: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

Thermal Bridges

• Exterior Wall Framing Members

– Light gauge steel framing

– Wood framing

• Regions of Framing “Build-up”

– Exterior Wall Openings (e.g. headers, posts)

– Exterior Wall Corners

– Exterior Wall to Floor Intersections

– Exterior Wall to Roof Intersections

84

Page 85: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

Photo: Not so advanced framing…

Page 86: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

Other Thermal Bridges

• Window Frames (Aluminum & Steel)

• Metal Subframing at Cladding Systems

• Steel Ledger Angles at Cladding Systems

• Projecting Slab Edges (Concrete)

• Large Structural Framing Members (Steel)

86

Page 87: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

Drawing – Straube report

87

Page 88: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

Drawing – Straube report

88

Page 89: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

Drawing – Straube report

89 Image courtesy of Mike Williams

Page 90: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

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Page 91: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

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Page 92: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

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Page 93: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

Design Overview

Photo Credit: Casey Braunger

Page 94: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

Aerial View from South Image courtesy of Ankrom Moisan Architects

Page 95: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

First Floor Plan

Image courtesy of Ankrom Moisan Architects

Page 96: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

Enclosure Assemblies Images courtesy of Ankrom Moisan Architects

Page 97: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

Shading Elements

Balconies

Eyebrows

Image courtesy of William Wilson Architects

Page 98: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

HVAC Design

• Highly iterative process

– Design work modeling work costing analysis

constructability review

– Repeat…

• Bidding / procurement

• Coordinating the work…

Page 99: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

HVAC Design

• Highly iterative process

– Design work modeling work costing analysis

constructability review

– Repeat…

• Bidding / procurement

• Coordinating the work…

ERV

HEAT

PUMP

Heating & Partial Cooling

Image courtesy of PAE Consulting Engineers

Page 100: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

HVAC Design

• Highly iterative process

– Design work modeling work costing analysis

constructability review

– Repeat…

• Bidding / procurement

• Coordinating the work…

Mechanical Penthouse

Page 101: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

HVAC Design

• 3 HRV Zones

• Cook ERV serves each zone

Page 102: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

HVAC Design

• Continuous 50cfm

supply air per

bedroom

• Continuous

exhaust at kitchen

and bath

• Electric cove

heater in living

room for user

control & backup

heat

- Estimated at 20% of building heating

load • No active cooling at apartments

Image courtesy of PAE Consulting Engineers

Page 103: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

R-39

R-40

R-40

R-41

R-48

Page 104: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review
Page 105: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review
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Page 107: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

Coordination Drawing at Typical Exterior Wall to Foundation

Page 108: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review
Page 109: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review
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Page 112: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

Coordination Drawing at Typical Exterior Wall to Roof

Page 113: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review
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Page 116: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review
Page 117: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review
Page 118: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review
Page 119: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review
Page 120: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review
Page 121: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review
Page 122: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review
Page 123: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

Balcony details

Page 124: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review

Balcony details

Page 125: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review
Page 126: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review
Page 127: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review
Page 128: Enclosure Design Training - Energy Trust of Oregon Design Training ... HVAC Design • Highly iterative process –Design work modeling work costing analysis constructability review