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Upper wall insulation installation with butyl z-flashing

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This exterior insulated slab-on-grade monolithic grade beam foundation is protected from pests by termite shield at the sill plate, borate-treated framing, flashing at end of wall insulation, brick veneer over slab-edge insulation, and rock ground cover.

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Measure Guideline: Guidance on Taped Insulating Sheathing Drainage Planes

Reference

Measure Guideline research report providing simple, long term, and durable solutions when using tapes and flashing membranes in conjunction with the exterior face of rigid polymeric foam sheathing to create the drainage plane of a wall system.

Clean taping areas and install 3" tape on vertical joint of upper insulation overlapping the horizontal joint

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Tape the joint between the top insulation sheet and the Z-flashing with 2" wide tape to improve air tightness

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This farmhouse was retrofit by removing the existing siding and adding taped insulated sheathing and battens before installing new siding

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Step 1. Apply roof underlayment over roof deck and up the sidewall over the rigid foam insulation

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Step 5. Apply self-adhesive flashing over top edge of the wall flashing, diverter, and rigid foam insulation

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Rigid foam insulation can serve as the drainage plane when all seams are taped. Furring strips provide an air gap behind the cladding.

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This basement is insulated on the exterior with rigid foam over dampproofing, with granular backfill and footing drains to facilitate drainage away from the foundation, a termite shield to protect from pests, and cellular PVC to protect the rigid foam.

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Install minimum 6" wide self-adhered butyl Z-flashing

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Right – Two-thirds of acrylic tape is offset above the joint and over and above the fasteners

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Right – two-thirds of the blue butyl flashing tape is above the sheathing seam; the top edge of the butyl flashing tape is covered with clear sheathing tape that is also offset so two-thirds is above the top edge of the butyl flashing.

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Flashing of Penetrations in Existing Roofs

Guide

Guide describing how to provide a continuous water control layer across the roof assembly by sealing all penetrations for pipes, vents, etc. in existing roofs.

Roof Valleys and Penetrations Sealed

Guide

Guide describing how to seal roof valleys and how to seal around pipes, chimneys, and other roof deck penetrations.