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
An EIFS inspector observes efflorescence staining on the finish coat surface. What does this condition most likely indicate?
Answer: Moisture migrating through the substrate dissolving salts and depositing them on the surface
Efflorescence occurs when water transports soluble salts through the substrate or base coat to the surface, indicating ongoing moisture movement through the assembly.
During inspection, an EIFS applicator claims that two competing manufacturer's base coat and finish coat products were mixed on the project. What is the inspector's appropriate response?
Answer: Flag the non-compliant combination and require documentation of manufacturer approval or require removal
EIFS systems must use components from the same manufacturer or have documented manufacturer approval for mixing, as compatibility affects performance and warranty validity.
What is the minimum dry time typically required between base coat application and finish coat application in EIFS installation?
Answer: 24 hours or until the base coat is fully cured and uniformly gray
The base coat must be fully cured (typically 24 hours under normal conditions) and uniformly gray or off-white before the finish coat is applied to prevent moisture-related defects.
An inspector finds that mechanical fasteners in a mechanically attached EIFS system are placed 12 inches from the EPS board edge instead of the 6-inch maximum specified. What is the primary concern?
Answer: Inadequate edge support causing board rocking or deflection under wind load
Fasteners too far from panel edges allow the EPS board edges to flex or rock, which can cause lamina cracking and reduce the system's wind load resistance.
Which EIFS quality control step requires the inspector to evaluate the 'notch size and pattern' of the trowel used during installation?
Answer: Application of adhesive to EPS boards in adhesively attached systems
The notch trowel size and pattern control adhesive coverage and thickness when bonding EPS boards, directly affecting bond strength and performance of adhesively attached systems.
During inspection of an occupied building, an inspector identifies an EIFS area with a suspicious wet spot after heavy rain but no visible cracks. What is the best next step?
Answer: Perform electronic moisture scanning followed by targeted core sampling to confirm and locate the source
Electronic scanning identifies the extent of the wet zone non-destructively, and targeted cores confirm moisture levels and identify the entry point with minimal disruption.
An EIFS quality control plan should require inspection hold points at minimum at which stages?
Answer: Substrate preparation, EPS board attachment, base coat/mesh application, and finish coat application
Hold points at each major installation phase allow identification and correction of deficiencies before they are concealed by subsequent layers of the EIFS assembly.