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 an EIFS inspection, an inspector uses a probe penetration instrument on a suspect area and reads 22% WME. What does this most likely indicate?
Answer: Elevated moisture that warrants further investigation or destructive testing
A WME reading of 22% is elevated and suggests potential moisture accumulation behind the EIFS, warranting additional evaluation such as core sampling.
What is the primary purpose of the 'backwrap' detail in EIFS installation?
Answer: To terminate the mesh and lamina cleanly and weatherproof at system edges
Backwrapping folds the mesh and base coat around the EPS board edge, sealing the termination to prevent moisture intrusion at system edges.
An inspector finds that EPS board joints were staggered at horizontal courses but were aligned at a window corner. What deficiency does this represent?
Answer: A stress concentration point that can lead to diagonal cracking at the corner
EPS joints aligned at window corners create stress concentration points where diagonal cracking often initiates; boards must be cut so joints do not land at corners.
Which condition is considered a critical deficiency requiring immediate remediation in a drainage-type EIFS system?
Answer: Blocked weep screed preventing moisture drainage at the base
A blocked weep screed prevents moisture from draining out of the drainage cavity, defeating the drainage system's purpose and risking structural damage.
Under ASTM E2570, what parameter is evaluated during a water-resistive barrier inspection for EIFS?
Answer: Water penetration resistance of the WRB over simulated openings
ASTM E2570 evaluates the water resistance of WRBs used with EIFS by applying water at specified pressure over test openings to detect leakage.
When reviewing quality control records for an EIFS project, which documentation is most critical to verify material conformance?
Answer: Manufacturer's product data sheets and batch delivery receipts
Product data sheets confirm specified materials were used, and batch delivery receipts verify that materials came from the approved manufacturer's production run.
An inspector observes that the EIFS contractor did not install a kick-out (diverter) flashing where a roof slope meets a sidewall. What is the risk?
Answer: Roof runoff will be directed behind the EIFS causing chronic water intrusion
Without a kick-out flashing, roof drainage runs down behind the cladding at the roof-to-wall junction, introducing large volumes of water into the wall assembly.