1
Georgia CO Exam - WDO Category
2025/2026 Exam Questions Marking
Scheme New Update | A+ Rated
Crawlspaces: If you smell a gas leak what should you do? - 🧠 ANSWER ✔✔Don't
go in or get out!
What safety equipment (or PPE) should you wear when in crawlspaces? - 🧠
ANSWER ✔✔Bump cap, coveralls, safety glasses, RESPIRATOR, and knee pads
Why is excess moisture in crawl spaces such a big deal to our customers? - 🧠
ANSWER ✔✔Facilitates an environment for pests that can cause structural and
health concerns in addition to being nuisances.
T/F: Do customers breath the air from the crawlspace? - 🧠 ANSWER ✔✔True!
What are some ways to remedy water in the crawl space? - 🧠 ANSWER ✔✔Install
a new gutter that slopes down and away from the house (following the grade) OR a
sump pump
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
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STATEMENT. ALL RIGHTS RESERVED
,2
Are there ventilation standards in crawl spaces for sub termites? - 🧠 ANSWER
✔✔No!
Are there ventilation standards in crawl spaces for wood-destroying beetles and
fungi? - 🧠 ANSWER ✔✔Yes!
All ventilation materials (ex: vents, vapor barriers, etc must meet the standard of
the __________________________ code - 🧠 ANSWER ✔✔International Building
Code
How thick should your vapor barrier be? - 🧠 ANSWER ✔✔4-6mm
If a home has an infestation of wood boring beetles on the outside of the home
what are the requirements to treat the crawlspace? - 🧠 ANSWER ✔✔You do not
need to treat the crawlspace or apply vapor barrier. Wood on the outside should be
treated with a pesticide for wood boring beetles per the label.
If conducive conditions are discovered within _________ days of treatment and a
WDI report to remedy pests or fungi in a crawl space the PMP must return and
remedy the issues free of charge to the customer. - 🧠 ANSWER ✔✔90 days
If less than 90% of the soil in the crawl is covered with a Class 1 vapor barrier
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
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STATEMENT. ALL RIGHTS RESERVED
,3
(4 or 6 ml poly).... - 🧠 ANSWER ✔✔divide the sq. ft. of soil in the crawl by
150...and that equals
the square footage of ventilation that is required to meet the Building Code.
If 90% or > of the soil of the crawl space is covered with a Class 1 vapor barrier
(4 or 6 ml poly)... - 🧠 ANSWER ✔✔divide the sq. ft. of soil in the crawl by
1,500...and that equals
the square footage of ventilation that is required to meet the Building Code.
What are the minimum treatment standards for the prevention or control
of powder post beetles? - 🧠 ANSWER ✔✔If the PPB infestation is in the crawl
space, at least 70% of the soil of the crawl space must be covered with a vapor
barrier and the under-floor space must meet the ventilation standards of the
International Residential Building Code of 1 & 2 Family Homes.
The application of a pesticide registered by EPA and the Georgia Department of
Agriculture, in strict accordance with the product's registered directions for use.
What are the minimum standards for the prevention or control of wood
decay fungi? - 🧠 ANSWER ✔✔When wood decay fungi are present in the crawl
space, at least 70% of the soil of the crawl space must be covered with a vapor
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
3
STATEMENT. ALL RIGHTS RESERVED
, 4
barrier and the under-floor space must meet the ventilation standards of the
International Residential Building Code of 1 & 2 Family Homes.
If the wood decay fungus in the crawl space is water-conducting rot (Poria
incrassata), the additonal treatment measures must be met: - 🧠 ANSWER ✔✔1.
Cut the visible rhizomorphs and scrape visible fungal growth from the
foundation walls.
2. Removal of all wooden contacts between buildings and inside crawl space
soil, other than those wooden supports which have been treated with
preservatives to a minimum preservative retention designed for ground
contact.
T/F: Is inadequate ventilation a conducive condition on the Georgia WDI form? - 🧠
ANSWER ✔✔Yes! (True)
Question #1 - How many standard vents (8" x 16") would be needed to meet the
International Residential Building Code for a residential crawl space structure that
is 65' long by 30' wide without a vapor barrier?
2
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
4
STATEMENT. ALL RIGHTS RESERVED
Georgia CO Exam - WDO Category
2025/2026 Exam Questions Marking
Scheme New Update | A+ Rated
Crawlspaces: If you smell a gas leak what should you do? - 🧠 ANSWER ✔✔Don't
go in or get out!
What safety equipment (or PPE) should you wear when in crawlspaces? - 🧠
ANSWER ✔✔Bump cap, coveralls, safety glasses, RESPIRATOR, and knee pads
Why is excess moisture in crawl spaces such a big deal to our customers? - 🧠
ANSWER ✔✔Facilitates an environment for pests that can cause structural and
health concerns in addition to being nuisances.
T/F: Do customers breath the air from the crawlspace? - 🧠 ANSWER ✔✔True!
What are some ways to remedy water in the crawl space? - 🧠 ANSWER ✔✔Install
a new gutter that slopes down and away from the house (following the grade) OR a
sump pump
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
1
STATEMENT. ALL RIGHTS RESERVED
,2
Are there ventilation standards in crawl spaces for sub termites? - 🧠 ANSWER
✔✔No!
Are there ventilation standards in crawl spaces for wood-destroying beetles and
fungi? - 🧠 ANSWER ✔✔Yes!
All ventilation materials (ex: vents, vapor barriers, etc must meet the standard of
the __________________________ code - 🧠 ANSWER ✔✔International Building
Code
How thick should your vapor barrier be? - 🧠 ANSWER ✔✔4-6mm
If a home has an infestation of wood boring beetles on the outside of the home
what are the requirements to treat the crawlspace? - 🧠 ANSWER ✔✔You do not
need to treat the crawlspace or apply vapor barrier. Wood on the outside should be
treated with a pesticide for wood boring beetles per the label.
If conducive conditions are discovered within _________ days of treatment and a
WDI report to remedy pests or fungi in a crawl space the PMP must return and
remedy the issues free of charge to the customer. - 🧠 ANSWER ✔✔90 days
If less than 90% of the soil in the crawl is covered with a Class 1 vapor barrier
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
2
STATEMENT. ALL RIGHTS RESERVED
,3
(4 or 6 ml poly).... - 🧠 ANSWER ✔✔divide the sq. ft. of soil in the crawl by
150...and that equals
the square footage of ventilation that is required to meet the Building Code.
If 90% or > of the soil of the crawl space is covered with a Class 1 vapor barrier
(4 or 6 ml poly)... - 🧠 ANSWER ✔✔divide the sq. ft. of soil in the crawl by
1,500...and that equals
the square footage of ventilation that is required to meet the Building Code.
What are the minimum treatment standards for the prevention or control
of powder post beetles? - 🧠 ANSWER ✔✔If the PPB infestation is in the crawl
space, at least 70% of the soil of the crawl space must be covered with a vapor
barrier and the under-floor space must meet the ventilation standards of the
International Residential Building Code of 1 & 2 Family Homes.
The application of a pesticide registered by EPA and the Georgia Department of
Agriculture, in strict accordance with the product's registered directions for use.
What are the minimum standards for the prevention or control of wood
decay fungi? - 🧠 ANSWER ✔✔When wood decay fungi are present in the crawl
space, at least 70% of the soil of the crawl space must be covered with a vapor
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
3
STATEMENT. ALL RIGHTS RESERVED
, 4
barrier and the under-floor space must meet the ventilation standards of the
International Residential Building Code of 1 & 2 Family Homes.
If the wood decay fungus in the crawl space is water-conducting rot (Poria
incrassata), the additonal treatment measures must be met: - 🧠 ANSWER ✔✔1.
Cut the visible rhizomorphs and scrape visible fungal growth from the
foundation walls.
2. Removal of all wooden contacts between buildings and inside crawl space
soil, other than those wooden supports which have been treated with
preservatives to a minimum preservative retention designed for ground
contact.
T/F: Is inadequate ventilation a conducive condition on the Georgia WDI form? - 🧠
ANSWER ✔✔Yes! (True)
Question #1 - How many standard vents (8" x 16") would be needed to meet the
International Residential Building Code for a residential crawl space structure that
is 65' long by 30' wide without a vapor barrier?
2
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
4
STATEMENT. ALL RIGHTS RESERVED
