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Over the taped rigid foam board, 2x4 furring strips provide a ventilating air gap and drainage plane under the engineered wood lap siding. The furring strips were attached with structural screws to provide an attachment surface for the siding.

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Wrong - Class I vapor retarder over framed basement walls can cause condensation, mold, and rotting because plastic prevents drying to the inside; the outside should have waterproofing and vertical drainage, and the framing should be spaced from the wall.

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Spray foam insulation extends down the foundation wall to the slab, which has been retrofitted by cutting the slab to install drainage mat against the wall and a new perimeter footing drain, along with rigid foam plastic above the slab.

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Right – The raised-slab, CMU block stem wall, above-grade walls, and roof of this house use flood damage-resistant materials, integrated water, vapor, and air control layers, and construction methods which promote good drainage and rapid drying

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Right – The raised-slab, poured-concrete stem wall, above-grade walls, and roof of this house use flood damage-resistant materials, integrated water, vapor, and air control layers, and construction methods which promote good drainage and rapid drying

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Right – The raised-slab, brick-and-block stem wall, above-grade walls, and roof of this house use flood damage-resistant materials, integrated water, vapor, and air control layers, and construction methods which promote good drainage and rapid drying

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Stucco Over Rigid Foam Insulation

Guide

Guide describing how to install stucco over rigid foam insulation in new and existing homes.

International Plumbing Code (IPC)

Reference

Website with all versions of the International Plumbing Code (IPC), code establishing minimum regulations for plumbing facilities, including fixtures, water heaters, water supply and distribution, sanitary drainage, storm drainage, etc.

Below-Grade Water Management for Urban Sites

Guide

Guide describing methods to manage groundwater under and around urban multifamily buildings.

The “down” and “out” approach to flashing – metal flashing directs water down and out of building assemblies

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2021 International Plumbing Code - IPC

Reference

2021 edition of code establishing minimum regulations for plumbing facilities, including fixtures, water heaters, water supply and distribution, sanitary drainage, storm drainage, etc.

2009 International Plumbing Code - IPC

Reference

2009 edition of code establishing minimum regulations for plumbing facilities, including fixtures, water heaters, water supply and distribution, sanitary drainage, storm drainage, etc.

2012 International Plumbing Code - IPC

Reference

2012 edition of code establishing minimum regulations for plumbing facilities, including fixtures, water heaters, water supply and distribution, sanitary drainage, storm drainage, etc.

2015 International Plumbing Code - IPC

Reference

2015 edition of code establishing minimum regulations for plumbing facilities, including fixtures, water heaters, water supply and distribution, sanitary drainage, storm drainage, etc.

2018 International Plumbing Code - IPC

Reference

2018 edition of code establishing minimum regulations for plumbing facilities, including fixtures, water heaters, water supply and distribution, sanitary drainage, storm drainage, etc.

Frame wall and install blocking

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Lower wall insulation installation

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Taped vertical joint of lower wall insulation

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Upper wall insulation installation

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

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Upper wall insulation installation with butyl z-flashing

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Tennessee 'Bee Whisperer' Removes 35,000 Honey Bees from Brick Wall

Reference

A story about bees building a hive in the drainage plane behind the brick veneer siding. The bees entered the wall through unprotected drainage holes.