Air Exhaust Safety

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BEFORE THE ARCHITECT – HOME DESIGNING BACKGROUND – UNIQUE HOME DESIGNING ARTICLES

HOME DESIGN SAFETY - AIR EXHAUST

By Before The Architect  Copyright 2004-2009 Before The Architect

 

Now, we live inside the home design whirl.  We're driving.   It's the tools and materials and the site that are conjured as our lines and notes layout on the screen and sheet one by one.  And as I draw . . .  Mud still sucks my shoes as I take a corner to get a better view of the East wall.  There's the smooth wet air hanging over a fresh placement, the varnish cracking to my tread, the feel of a finely joined newel or gooseneck.  Sometimes, these imaginings and I get mighty close in a long day's draw.   Before The Architect

 

HOME DESIGN SAFETY - AIR EXHAUST

 

INTRODUCTION

Breathing is essential.  Breathing well is a worthy goal. 

1)     Interior air exhaust fan vents air duct shall not exit a residential exterior within 10 linear feet of

a)     a soffit vent

b)     an operable window

c)      a door

d)     an operable skylight

e)     a deck

f)       a balcony

g)     a walkway or pathway

h)     a seating area

i)    a standing area

 

2)     Roof vent exhaust shall be controlled by

a)     thermostat

b)     humidistat

c)      preferably, by automatic heat sensor high-heat cut-off

d)     preferably by 2-speed or better switching control internal to each fan’s  electrical wiring

e)     SEE VENTING STANDARDS FOR MORE ON THIS

 

3)     A multiflue chimney shall be constructed such that each flue at its terminus

a)     shall be permanently and completely separated physically

i)       from its abutters

ii)     from crown top of face to rain cap bottom of face

iii)   from chimney side to chimney side, as by a full-length partition

b)     shall be not less than 10 linear inches on the vertical to the rain cap bottom of face

c)      without regard to any other backdraft safety measures

 

4)     A home air conditioning or air heat pump on the exterior shall not be in line of site to a clothes dryer vent exhaust 

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