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Large Crawlspace Area
Under Basement
USING COMMERCIAL GRADE DOWNSPOUT

FAN AT EXTERIOR

COLORED TO MATCH
EXSISTING TRIMS

CRAWLSPACE HIDDEN
BEHIND A FIREPLACE

DOWNSPOUT MATERIAL
USED AT EXTERIOR

FIRE COLLAR USED AT
BOTTOM OF PIPE AT WALL

FAN COMES FROM GARAGE
INTO ATTIC SPACE

ROOF TOP VENT PIPE USING BLACK PIPE

PLASTIC BARRIER INSTALLED

FIRE COLLAR AT BOTTOM OF PIPE REQURED

ROOF TOP VENT USING WHITE PIPE WITH VENT CAP

CRAWLSPACE AREA UNDER BASSEMENT

MOUNTAIN HOME

FAN PIPE

PIPE EXTENDED ABOVE SNOWLINE

FLOOR SEALED

CRACKS SEALED AT FLOOR

CONCRETE CORE DRILL USED

SOIL IS REMOVED

SYSTEM EXISTS FROM CRAWLSPACE TO EXTERIOR AND VENTS

SYSTEM EXISTS FROM BASEMENT USING DOWNSPOUTS

SYSTEM EXISTS FROM BASEMENT TO EXTERIOR AND VENTS













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