sustainablity in masonary

8/3/2019 Sustainablity in Masonary

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Welcome


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Proudly presents


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Learning Objectives:

1. Analyze general design methods for

masonry construction that create sustainablewall systems affecting the structural integrity

and internal welfare of its inhabitants.

2. Compare the difference between and

importance of suitable anchoring system.

3. Assess proper flashing and moisture

control techniques.

4. Determine how to address seismic and

severe wind load factors in masonry wall

systems.


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ED+C Magazine is a Registered Provider with The

American Institute of Architects Continuing EducationSystems. Credit earned on completion of this program will bereported to CES Records for AIA members. Certificates ofCompletion for non-AIA members are available on request.

This program is registered with the AIA/CES for continuingprofessional education. As such, it does not include contentthat may be deemed or construed to be an approval orendorsement by the AIA of any material of construction or anymethod or manner of handling, using, distributing, or dealing

in any material or product. Questions related to specificmaterials, methods, and services will be addressed at theconclusion of this presentation.


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EDUCATION PROVIDER NAME

1

Sustainability in Mason Construction


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Green BuildThe future will be green, or not

at all. This truth lies at the heart

of humankinds most pressing

challenge: to learn to live inharmony with the Earth on a

genuinely sustainable basis.

-Sir Jonathon Porritt


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Hohmann and Barnard, Inc.

Sustainable Anchors

Our anchoring products

lend structural support

and integrity to the

buildings in which they

are incorporated

thereby allowing for

years of durability and

preservation of our

planets natural

environmental

resources.


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Masonry buildings are extremely durable.The University of Southern California is anexample where measures were taken toensure proper building practices.

Masonry buildings are extremely durable. Their greatest

enemies are commonplace: water and movement caused by

thermal expansion. When confined water freezes, it expands

with tremendous pressure, causing cracking, crazing, spalling

and deterioration of masonry surfaces. Movement of wall

systems results in the cracking of masonry, which then provides

easy entry for moisture.


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Building Movement

Movement of wall systems resultsin the cracking of masonry, which

then provides easy entry for

moisture.

Effloresence

Salt and mineral deposits leftbehind on brick or masonry

surfaces.

Spalling

If saturated when frozen, pressure

from expanding ice can fracture

brick, block, or stone.


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Rust to Steel ComponentsMoisture penetrating

into the cavity can rust

and damage steel

framing components

including brickanchoring systems and

joint reinforcements.


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Anchor OptionsOver time, ties of various sizes,configurations, and

adjustability have been

developed for load-bearing

masonry, often of different

materials; anchor masonry

veneer to backing systems

other than masonry;

and connect composite

masonry walls.


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AnchoringTypically, wall ties perform

four primary functions

between a wythe of brick and

its backing or another wythe

of masonry.

Provide a Connection


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Anchoring Provide a connection

Transfer lateral loads


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Anchoring Provide a connection

Transfer lateral loads

The ability to handle

differential movement or insome cases, restrict

movement

Air barrier interface


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Multi Wythe Masonry Construction

Concrete Block Back-up

Drywall Construction with Metal Studs


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Concrete Block Back-up


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Reinforcement: Truss or Ladder

Truss Reinforcement

Ladder Reinforcement


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Reinforcement Finishes

Black Basic-No Coating

Mill Galvanized

ASTM A641-(0.10 oz. Zinc Coating/FT )

Hot Dip Galvanized

ASTM A153 Class B2-(1.5 oz. Zinc Coating/FT )

Stainless Steel Type 304 or 316

ASTM A580

Stainless Steel is Recommended for Maximum

Protection Against Corrosion


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Weights

Standard

9 ga. Side Rods x 9 ga. Cross Rods

Extra Heavy

3/16" Side Rods x 9 ga. Cross Rods

Super Heavy Duty

3/16" Side Rods x 3/16" Cross Rods

Cross RodSide Rod


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Installation

6 OVERLAP

SIZE = 2 LESS THAN CMU


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Anchoring Walls:Are you confident enough to use eye wire?


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Tru-Joint Feature

The Tru-Joint featurewas developed formasons to easily

maintain a standard3/8 joint thickness,

without concern forexcessive wire

buildup when eyesare welded ontobackup jointreinforcement.


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To add Sustainability and Integrity to yourMasonry Wall, Specify a Closed Loop System

When brickcoursing is notwithin 1 loop

dimension, useBent-Box Tie foran additional 1

adjustability

Optional Lok Washerholds insulation in place

3/16 Box Tie

WeldedLoops

WeldedLoops

ClosedLoopTrussSystem

Wire Clip

1

1

Continuous Wire


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Adjustable Joint

Reinforcement Comparison

Allows In-Plane Vertical and Horizontal

Movement of Masonry Wythes, WhileRestraining Tension and Compression.

Loops Welded Shut to Maintain AllowableTolerance and System Integrity.

Vertical Configuration of Loops NotSusceptible to Clogging with Mortaras Construction Progresses.

Foolproof. Mason Can NotInstall Wire Tie BeyondAllowable Eccentricity.

Vertical loops have2 adjustability.Ideal for Econoor Utility Bricks.

Horizontal Eyelets Easily Clogged with Mortar

Often Relies on Workmanship to AssureProper Engagement of Pintle WithinAllowable Limits of Eccentricity

No Horizontal Movement

Eyelets NOT Welded Shut

No Guarantee that ImproperlyInstalled Pintle (Beyond ItsAllowable Eccentricity)will not Separate

from Reinforcement


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DrywallConstruction

with Metal

Studs


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The Challenge:

To prevent long-term

deterioration of the

insulation or wall

board due to

moisture, while also

preventing separation

of the wire tie from

the anchor.


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The Solution: Specify Details

Specify an anchor withrib-stiffened pronged legs

and back plate to sealsheathing from air andmoisture infiltration.

While maintainingintegrity of air barrier.


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100% Protection against

separation of wire tie

from anchor.

(See ACI-530-02 Sec. 6.2.2.5.5.3)

Specify:


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Specify:

Built-in screw track

for correct alignment

of screw into stud.


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Specify:

3 3/8 of vertical

adjustability

Takes guesswork out

of the laborers

hands.

Allows for easy

installation after

insulation is in place.

3-3/8


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Specify:

A 14 gauge anchor

capable of

withstanding a 100#

load in both tensionand compression

without deforming

or developing play

in excess of 0.05.


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Specify:

A cross-linked

polyethylene foam

tape to create a

pressure sealbetween anchor and

sheathing for added

protection.


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For Seismic, High Wind Load and

Wide Cavity Conditions


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Seismic

Considerations

Closed Loop System


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IBC 2000 Seismic Zones


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SHEET METALS ADVANTAGES DISADVANTAGES

Stainless Steel Durable, Impervious, Hard Difficult to bendHigh installation costs

Must be preformed at factory

Not easily field-adapted

Usually requires steel

workers for installation

Cold-rolled Copper, Durable, flexible, impervious, Cold-rolled stains surfaces

Lead-coated Copper easier to form and solder than where water runs off; damaged

stainless; Lead-coated does by excessive flexing; Copper

not stain corrodes and leads to gradual

change in surface color

COST: $ 9.00 -$ 10.00 PER SQ. FT

COST: $ 9.00 - $ 10.00 PER SQ. FT


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COMPOSITES ADVANTAGES DISADVANTAGES

Copper Laminations Easier to form and join More easily torn than metal,

than metals. asphalt degrades in sunlight

and can ooze under extreme heat

COST: $ 7.00 - $ 8.00 PER SQ. FT


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COMPOSITES ADVANTAGES DISADVANTAGES

EPDM Not susceptible to UV rays, Requires adhesives to bondCorrosion resistant, Good to substrate and requires double

Tear and puncture resistance sided tape to seal laps, More

difficult to work with than

rubberized asphalt, resulting

in higher labor costs

Rubberized Flexible at low temperatures Affected by UV rays

Asphalt Flashing Excellent tear/puncture Cannot form 45System resistance; self seals around degree drip edge;

stainless steel drip edge; loses adhesive properties

easy to install below 40 degrees;

Rubberized-asphalt component

can ooze out to the exterior

of the building in warm

temperatures.

PVC Not recommended for masonry

(Polyvinyl Chloride) flashing applications

COST: $1.00 - $1.50 PER SQ. FT.

COST: $ 4.00 - $ 5.00 PER SQ. FT (including drip edge)

COST: $ 3.00 - $ 4.00 PER SQ. FT


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*Elvaloy is a registered trademark of

the DuPont Company

THERMOPLASTIC ADVANTAGES DISADVANTAGES

Elvaloy Membrane Flexible at low temperatures. N/A

Not susceptible to UV.

Self-adhesive, easy to install,

seamless preformed corners and

end dams available.

Extremely tough, with excellent

impact and tear/puncture resistance.Highly resistance to oils and will

repel most chemicals

Compatible with most silicone and

urethane sealants.

Suitable for thru-wall or surface-

mount construction.

COST: $4.00 - $5.00 PER SQ. FT (with drip edge)

$3.00 - $4.00 PER SQ. FT (w/o drip edge)


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Flashing Locations

Shelf Angle

Outside Corner

Cavity WallBase Flashing

Shelf Angle Close-Up

Inside Corner


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Flashing Summary

Flashing must work as a system and include all

components such as termination bar, drip plates, mortar

collection device, etc.

Determine most compatible flashing system with wall

design.

Compatibility with sealants and adjacent materials is

critical.

User-friendly flashing systems for field personnel are

important


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HOHMANN AND BARNARD, INC.

30 RASONS CT.

HAUPPAUGE, NY 11788

p: 800-645-0616

f: 631-234-0683

e: [email protected]

www.h-b.com

www.h-b-edu.com

www.h-b.com/green

www.homes.h-b.com

CHRIS BUPP

p: 717-779-4943

[email protected]

This concludes The American Institute of Architects ContinuingEducation Systems Program

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