wall flashing v1
Post on 06-Apr-2018
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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.
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