ASHI ASHI Foundations & Basements 2

Question 1

What is the minimum headroom required in a basement by most US model building codes (IRC)?

Accepted Answer

6 feet 8 inches (2032 mm)

Answer

The IRC requires a minimum ceiling height of 6 feet 8 inches in habitable basement spaces, with beams permitted to project lower.

Question 2

During a crawl space inspection, an ASHI inspector finds standing water. This should be reported because:

Accepted Answer

Standing water promotes wood rot, mold growth, and deterioration of structural components

Answer

Standing water in a crawl space creates conditions for fungal growth and wood decay, directly threatening floor framing and other structural components.

Question 3

A crawl space vapor retarder should cover:

Accepted Answer

At least the exposed soil of the crawl space floor, lapped and sealed at seams

Answer

The vapor retarder must cover the exposed soil to block ground moisture from evaporating into the crawl space and wetting structural wood.

Question 4

Pyrite (iron sulfide) inclusions in fill used beneath a concrete slab can cause:

Accepted Answer

Swelling and heaving of the slab as the pyrite oxidizes and expands

Answer

When pyrite oxidizes in the presence of water and oxygen, it expands significantly, creating upward pressure that heaves and cracks concrete slabs.

Question 5

What does an ASHI inspector look for when evaluating foundation settlement?

Accepted Answer

Cracks, displacement, out-of-plumb walls, sticking doors, and sloped floors

Answer

Settlement manifests as a pattern of related symptoms throughout the structure, including cracks, door and window binding, and floor slope.

(ASHI) ASHI Certified Home Inspector Practice Test

(ASHI) ASHI Certified Home Inspector Practice Test

ASHI ASHI Foundations & Basements 2