wall flashing v1

8/3/2019 Wall Flashing V1

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It is critical that Design Professionals

understand that the conditions that they are

typically detailing on the building must meet the

challenges of the installer in the field.

BUILDING ENVELOPE

The building envelope includes everything thatThe building envelope includes everything that

separates the interior of a building from theseparates the interior of a building from the

outdoor environment, including theoutdoor environment, including the windowswindows, walls,, walls,

foundation, basement slab, ceiling, roof, andfoundation, basement slab, ceiling, roof, and

insulation.insulation.


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UNDERSTANDING,UNDERSTANDING,

AND DETAILING,AND DETAILING,THE BUILDINGTHE BUILDING

ENVELOPEENVELOPE


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EXTERIOR ELEVATION EXAMPLEEXTERIOR ELEVATION EXAMPLE

EXTERIOR ELEVATION EXAMPLEEXTERIOR ELEVATION EXAMPLE


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ROOF PLAN EXAMPLEROOF PLAN EXAMPLE


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EXTERIOREXTERIOR

WINDOW SILL EXAMPLEWINDOW SILL EXAMPLE


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THROUG

H WALLTHROUG

H WALLFLASHINGFLASHING


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Through-wall Base Flashing

Utilize preformed outside and inside corners

whenever possible to eliminate pinhole leaks that

typically occur when straight membrane is

overlapped


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This weep is not an acceptable

solution to wicking water from

the wall cavity. The tube tends

to get filled with bugs and

debris.

This weep is an acceptable

solution to wicking water from

the wall cavity. The louvers allow

ventilation into the cavity without

the bugs and debris. It is alsorecommended that these louvers

be installed at the top of the wall

to increase the cavity ventilation.


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This mortar net is an excellent way of preventing

masonry cement from packing or bridging in behind

the exterior veneer and allowing the water to weep

down to the masonry weeps.


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WIN

DOW / DOORWIN

DOW / DOORFLASHINGSFLASHINGS


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WATER PENETRATION DUE TO IMPROPER

FLASHING OF STOREFRONT SYSTEM


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WATER STOP FLASHING INSTALLED IN

CONCRETE SLAB UNDER STOREFRONT SYSTEM


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SEALANT HAS

DETERIORATED

AND HAS LEFT

BACKER RODEXPOSED.

ALLOWING

MOISTURE INTO

THE WALL

CAVITY.

WATER PENETRATION DUE TO IMPROPER

MATENANCE OF THE UNIT


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Aluminum Head flashingAluminum Head flashing


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Install membrane

on top of sill for the

through wall

flashing

Installation of

aluminum subsill

Installation of End

Dams


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Aluminum Backer

Plate installed in

throat of frame.

CORNER FLASHING DETAILALUMINUM WINDOW THROAT

CORNER FLASHING DETAIL


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Mullion detail

Vertical metal

mullion flashing

offset to extend

behind gypsheathing

Continuous metal

receiver flashing

MULLION FLASHING DETAIL

Continuous #66

Plaster Stop

Mullion detail


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Flashing is critical where clerestory

windows occur.

Continuous damp

proofing over thegyp sheathing

Try to integrate

roofing design with

the window flashingdesign


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FINAL RESULTSFINAL RESULTS


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TheThe finalfinal resultresult isis aa waterwater tighttight openingopening withwith aa

sealseal envelopeenvelope assemblyassembly


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972.874.1388

1.888.874.1388

www.armko.com

Established 1983

Specified more than 100,000,000 square feet of

roofing in Texas

Zero roof failures

Assist Design Professionals in preparing

and detailing with AutoCAD, the roof

plans and details required for any type of

project.

ARMKO Philosophy:

Whether the building is in the Coastal Bend area

or in the Panhandle of Texas, the Envelopeshould be able to accommodate the conditions

of the region. We further feel that our experience

in the field, quality assurance, and

understanding of why a building leaks makes

our firm unique in the Industry.

wall flashing v1

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