Home Inspector Test Home Inspector Structural Framing Defects 5

Question 1

A home inspector finds that the rim joist (band joist) around the perimeter of a floor system has multiple large holes cut through it for plumbing and electrical runs. What structural concern does this raise?

Accepted Answer

The rim joist provides lateral support to floor joist ends and resists shear; large holes reduce its effectiveness

Answer

The rim joist caps the floor joist ends, provides diaphragm shear continuity, and resists lateral forces; penetrations weaken this element.

Question 2

What condition is a home inspector describing when they note 'checks' in dimensional lumber framing members?

Accepted Answer

Longitudinal surface cracks along the grain caused by uneven drying of the wood

Answer

Checks are surface-level cracks running parallel to the grain that develop as lumber dries and shrinks; they are typically acceptable unless they are deep and extensive.

Question 3

A home inspector observes that a long span beam in a great room has a visible camber (upward bow) at mid-span. How should this be interpreted?

Accepted Answer

Camber is typically intentional in engineered beams to offset expected deflection under load

Answer

Engineered beams are often manufactured with a deliberate upward camber so that once loaded, they deflect back to a level or near-level position.

Question 4

When inspecting a home built in the 1960s, a home inspector finds that the roof is framed with rafters but there are no collar ties or ridge beam — only a non-structural ridge board. What is the likely consequence over time?

Accepted Answer

Without collar ties, outward thrust causes the walls to spread and the ridge to sag

Answer

Without collar ties to resist horizontal thrust, rafter loads push the top of the walls outward, allowing the ridge to drop over time.

Question 5

A home inspector finds that a doubled floor joist supporting a bearing wall above has a large knot located on its tension (bottom) face at mid-span. What is the structural significance?

Accepted Answer

Knots on the tension face at mid-span are particularly serious because they significantly reduce tensile strength at the highest-stress location

Answer

The bottom face of a floor joist at mid-span experiences maximum tensile stress, and a knot there acts as a stress concentration that can initiate fracture.

Home Inspector Test Practice Test

Home Inspector Test Practice Test

Home Inspector Test Home Inspector Structural Framing Defects 5