VIRGINIA HIC FINAL STUDY GUIDE
2026 COMPLETE QUESTIONS AND
ANSWERS.
⫸ What is the maximum size of a floor frame opening? Answer: 5 sq
ft (62) (R310.2.1)/ 4 ft header joist (130) (R502.10)
⫸ When installing a string of wall cabinets, the cabinets should
Answer: Be attached to the adjacent cabinets before to the wall
⫸ What is the MINIMUM height for a stairway handrail Answer: 34
inches
⫸ A third stairway stringer should be used when the stair width
exceeds Answer: 30 inches
⫸ What type of nail are best for general construction? Answer:
Smooth shank
⫸ What is the MAXIMUM flame spread index for insulation
materials Answer: 25 (R302.10.1)
⫸ What is the MAXIMUM dimension of the ventilation coverings
for under-floor space Answer: 1/4 inch (R 408.2)
, ⫸ Flexible insulation placed in floor joists above an unheated crawl
space should Answer: Be well supported between joists/using a wire
mesh or rigid board (c 904-5)
⫸ In a crawl space how far from the floor joints do you need to place
vapor retarder Answer: Top Soil
⫸ Ice dam protection needs to be _________ from the edge of eaves
Answer: 24 inches (R905.1.2)
⫸ Where to install radiant heat barrier in attic Answer: Rafters
⫸ What is the major advantage of icynene over polyurethane foam
Answer: Can be poured instead of sprayed
⫸ In a crawl space, what kind of vapor retarder should be used?
Answer: 6 mil or 8 mil
⫸ When batt insulation is installed a vapor retarder that __________
is commonly Answer: 4 mil polyethylene
⫸ What is the minimum amount of space that is allowed between
roof sheeting and insulation to allow the passage of air? Answer: 1
1/2 in
⫸ In a ceiling batt insulation where is the vapor retarder placed?
Answer: Against the back of ceiling finish
2026 COMPLETE QUESTIONS AND
ANSWERS.
⫸ What is the maximum size of a floor frame opening? Answer: 5 sq
ft (62) (R310.2.1)/ 4 ft header joist (130) (R502.10)
⫸ When installing a string of wall cabinets, the cabinets should
Answer: Be attached to the adjacent cabinets before to the wall
⫸ What is the MINIMUM height for a stairway handrail Answer: 34
inches
⫸ A third stairway stringer should be used when the stair width
exceeds Answer: 30 inches
⫸ What type of nail are best for general construction? Answer:
Smooth shank
⫸ What is the MAXIMUM flame spread index for insulation
materials Answer: 25 (R302.10.1)
⫸ What is the MAXIMUM dimension of the ventilation coverings
for under-floor space Answer: 1/4 inch (R 408.2)
, ⫸ Flexible insulation placed in floor joists above an unheated crawl
space should Answer: Be well supported between joists/using a wire
mesh or rigid board (c 904-5)
⫸ In a crawl space how far from the floor joints do you need to place
vapor retarder Answer: Top Soil
⫸ Ice dam protection needs to be _________ from the edge of eaves
Answer: 24 inches (R905.1.2)
⫸ Where to install radiant heat barrier in attic Answer: Rafters
⫸ What is the major advantage of icynene over polyurethane foam
Answer: Can be poured instead of sprayed
⫸ In a crawl space, what kind of vapor retarder should be used?
Answer: 6 mil or 8 mil
⫸ When batt insulation is installed a vapor retarder that __________
is commonly Answer: 4 mil polyethylene
⫸ What is the minimum amount of space that is allowed between
roof sheeting and insulation to allow the passage of air? Answer: 1
1/2 in
⫸ In a ceiling batt insulation where is the vapor retarder placed?
Answer: Against the back of ceiling finish
