Inspection Procedures & Quality Control Flashcards
7 cards from real EIFS practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Inspection Procedures & Quality Control flashcards as text
During a pre-installation inspection of an EIFS substrate, an inspector finds surface moisture content of 19%. What is the correct action?
Answer: Reject the substrate until moisture content drops below 15%
EIFS manufacturers generally require substrate moisture content to be below 15% before applying adhesive or base coat to ensure proper bonding.
Which document must an EIFS inspector review to verify that the correct EPS board thickness was installed?
Answer: The approved construction documents and energy compliance report
Approved construction documents and the energy compliance report specify the required EPS insulation thickness for thermal performance requirements.
An EIFS inspector observes that drainage mat was omitted at the base of a wall assembly. What is the primary concern?
Answer: Trapped moisture cannot drain and may cause wood framing decay
Without a drainage mat, moisture that penetrates the cladding has no path to exit at the base, potentially accumulating and causing structural rot.
What is the recommended minimum overlap of EIFS base coat mesh at corners and transitions?
Answer: 6 inches
Industry standards typically require a minimum 6-inch mesh overlap at all corners and transitions to maintain structural continuity of the reinforcing layer.
An inspector notices the EIFS finish coat was applied when the ambient temperature was 38°F (3°C). What concern does this raise?
Answer: Cold temperatures can prevent proper curing and cause freeze damage
Most EIFS manufacturers require ambient and substrate temperatures to remain above 40°F during application and for at least 24 hours after to ensure proper curing.
Which test method is used to evaluate the pull-off strength of a mechanically attached EIFS system?
Answer: ASTM E2134 pull-off adhesion test
ASTM E2134 is the standard test method specifically developed to measure adhesion or pull-off strength of EIFS assemblies from the substrate.
When inspecting sealant joints at window-to-EIFS interfaces, what minimum depth-to-width ratio is generally required?
Answer: 1:2 ratio (depth is half the width)
Sealant joints should generally maintain a 1:2 depth-to-width ratio to allow the sealant to stretch without cohesive failure under movement.