ASHRAE Journal - July 2021 - 50

COLUMN BUILDING SCIENCES
FIGURE 3 Concrete Masonry Unit (CMU) Alternative Approach. Closed-cell, highdensity
spray polyurethane foam (ccSPF) can be used on the interior of the
CMU wall and in the second-floor frame wall cavity. Such foam has a low water
absorption and is not damaged from flood waters.
FIGURE 4 Concrete Stem Wall Raised Slab Foundation. A variation of CMU " raised
slab foundations, " but with a frame wall. The frame wall assembly is insulated
externally with continuous exterior rigid insulation. No fibrous or batt insulation is
installed in frame wall cavities to further reduce risk of moisture damage arising
from flood waters.
Attic Roof Escape Hatch
(Egress Skylight)
Strip of Gypsum Board Removed at Top After Moisture
Event to Facilitate Drying
Vapor-Open Paint Coating
Strip of Gypsum Board Removed at Bottom After Moisture
Event to Facilitate Drying
Baseboard Removed After Moisture Event
Strip of Gypsum Board Removed at Top After Moisture Event
To Facilitate Drying
Spray Polyurethane Foam (SPF), Closed Cell 2 lb/ft3 Density
Acrylic Latex Paint Over All Surfaces Prior to Installation of
Interior Gypsum Board
Strip of Gypsum Board Removed at Bottom After Moisture
Event to Facilitate Drying
Baseboard Removed After Moisture Event
YOUR DEFINITIVE COMPANION
TO STANDARD 62.2
Standard 62.2 User's Manual
(Based on ANSI/ASHRAE Standard 62.2-2019, Ventilation
and Acceptable Indoor Air Quality in Residential Buildings)
Updated to align with the 2019 edition of ANSI/ASHRAE
Standard 62.2, this user's manual provides sample calculations,
best practices, and additional guidance for professionals
concerned with ventilation and indoor air quality in residences.
$76 (ASHRAE Member $57)
ashrae.org/622UM
50
ASHRAE JOURNAL ashrae.org J U LY 2 0 2 1
Features:
* Interpretations for applying the standard
* Design applications
* Best practices for avoiding odors and contaminants
* Guidance for whole-building and local
exhaust ventilation
* Information on air-moving equipment
http://www.ashrae.org/622UM http://www.ashrae.org

ASHRAE Journal - July 2021

Table of Contents for the Digital Edition of ASHRAE Journal - July 2021

Contents
ASHRAE Journal - July 2021 - Intro
ASHRAE Journal - July 2021 - Cover1
ASHRAE Journal - July 2021 - Cover2
ASHRAE Journal - July 2021 - 1
ASHRAE Journal - July 2021 - Contents
ASHRAE Journal - July 2021 - 3
ASHRAE Journal - July 2021 - 4
ASHRAE Journal - July 2021 - 5
ASHRAE Journal - July 2021 - 6
ASHRAE Journal - July 2021 - 7
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ASHRAE Journal - July 2021 - Cover3
ASHRAE Journal - July 2021 - Cover4
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