EIFS EIFS Repair, Remediation & Maintenance

Question 1

Before applying a patch over damaged EIFS, the inspector should verify that the substrate is:

Accepted Answer

Dry, sound, and free of contaminants

Answer

A dry, sound, and contaminant-free substrate is essential for patch repair materials to properly bond and prevent future delamination.

Question 2

When repairing a delaminated area of EIFS finish coat, the damaged section should be cut back to a minimum of how far beyond the visibly affected area?

Accepted Answer

2 inches

Answer

Cutting back at least 2 inches beyond visible damage ensures the repair overlaps onto sound material, preventing re-delamination at the repair perimeter.

Question 3

Which repair method is appropriate for a small puncture or impact crack in the EIFS lamina that has not compromised the insulation board?

Accepted Answer

Fill with compatible base coat and finish coat matching the original system

Answer

Small lamina repairs are made by filling with compatible base coat and applying matching finish coat to restore the original system continuity and appearance.

Question 4

When an EIFS repair requires embedding new reinforcing mesh, the new mesh should overlap the existing mesh by a minimum of:

Accepted Answer

2.5 inches

Answer

Standard EIFS industry practice requires a minimum 2.5-inch (approx. 65 mm) overlap of reinforcing mesh to maintain tensile continuity across the repair area.

Question 5

An EIFS wall shows widespread alligator cracking of the finish coat. The inspector's most likely conclusion is:

Accepted Answer

Base coat shrinkage from improper water-to-powder ratio during mixing

Answer

Alligator or map cracking typically results from a base coat mixed with too much water, causing excessive shrinkage upon drying.

(EIFS) Certified Exterior Insulation and Finish Systems Inspector Practice Test

(EIFS) Certified Exterior Insulation and Finish Systems Inspector Practice Test

EIFS EIFS Repair, Remediation & Maintenance