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2023-05-09 18:16:21 本頁面
【正文】 essing” zone ?Demonstrates suppression of moisture load from soil and outdoor air ?Avoids issues mon to southeast wall vented crawls Moisture Mold, rot Transmission of mold to house 01020304050607080901001 /1 /0 4 3 /3 1 /0 4 6 /2 9 /0 4 9 /2 7 /0 4 1 2 /2 6 /0 4 3 /2 6 /0 5 6 /2 4 /0 5 9 /2 2 /0 5 1 2 /2 1 /0 5 3 /2 1 /0 6 6 /1 9 /0 6 9 /1 7 /0 6 1 2 /1 6 /0 6% Relative HumidityNo n inter v e nt ion Inter v e nt ionRH Results in Living Space Average house RH and Temperature a. DRY SEASON [DECEMBER 15 – MARCH 15] Status Mean Return Temp St Dev Return Temp Mean Return RH St Dev Return RH I N b. SPRING SHOULDER [MARCH 15 – MAY 15] Status Mean Return Temp St Dev Return Temp Mean Return RH St Dev Return RH I N c. WET SEASON [MAY 15 – OCTOBER 15] Status Mean Return Temp St Dev Return Temp Mean Return RH St Dev Return RH I N d. FALL SHOULDER [OCTOBER 15 – DECEMBER 15] Status Mean Return Temp St Dev Return Temp Mean Return RH St Dev Return RH I N Crawl space moisture connection to inside 203040506070801 /1 /0 4 3 /3 1 /0 4 6 /2 9 /0 4 9 /2 7 /0 4 1 2 /2 6 /0 4 3 /2 6 /0 5 6 /2 4 /0 5 9 /2 2 /0 5 1 2 /2 1 /0 5 3 /2 1 /0 6 6 /1 9 /0 6 9 /1 7 /0 6 1 2 /1 6 /0 6Dew Point Temp (176。 installation SystemVision $1,725 per house $1,920 $2,100 per house SystemVision fee $1,050 $1,050 Closed crawl space ~$ per square foot [$3,00 for 1200 square foot house] $ $ per square foot [$1,200 for 1200 square foot house] Aprilaire $170 [Spaceguard filter amp。F)No n inter v e nt ion Inter v e nt ion Outsi deDid we impact relative humidity? ?Crawl space RH stayed below 70% Expect mold suppression in crawl and reduced mold in house ?House RH was not reduced Closed crawl space + outdoor air doesn’t bring the living space to target RH Introducing outdoor air does not dry the house ?Closed crawl couples crawl RH to house ?Wallvented crawls remain coupled to outdoor RH Allergens ?Moisture dependant allergens House Dust Mite Fungus (Alternaria Alternate) ?No difference between intervention and control levels Dust Mite Allergen Levels (Control + Intervention Group) Median Der f1 ug/g dust (ELISA assay method) At MoveIn 6 months postmove in Living Room Floor Living Room Couch Bedroom
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