An EIFS wall terminates above finished earth at the base of a building. What minimum clearance is commonly required by ANSI/EIMA installation practice at grade?
Correct Answer
D) 6 in.
ANSI/EIMA EIFS installation practice commonly requires EIFS to terminate at least 6 in. above finished grade to reduce moisture exposure and impact at the base. Other choices are typical clearances at some paved or roof conditions, or an excessive nonstandard value.
Why This Is the Correct Answer
ANSI/EIMA EIFS installation practice commonly requires EIFS to terminate at least 6 in. above finished grade to reduce moisture exposure and impact at the base. Other choices are typical clearances at some paved or roof conditions, or an excessive nonstandard value.
Why the Other Options Are Wrong
Option A: 2 in.
In thermal and moisture protection, 2 in. is the wrong selection for EIFS clearance: 2 in. is a different published number than the cited EIFS clearance value; ANSI/EIMA 99-A-2017 EIFS termination clearances supports 6 in.
Option B: 4 in.
The trap in B is 4 in. That selection is wrong because 4 in. is a different published number than the cited EIFS clearance value; ANSI/EIMA 99-A-2017 EIFS termination clearances supports 6 in.; EIFS commonly terminates at least 6 in.
Option C: 12 in.
Choice C gives 12 in. Its specific error: 12 in. is a different published number than the cited EIFS clearance value; ANSI/EIMA 99-A-2017 EIFS termination clearances supports 6 in. The accepted answer is 6 in.
Memory Technique
Make EIFS clearance a tabbed card: cite the exact condition, then choose 6 in.
Reference Hint
Open ANSI/EIMA 99-A-2017, Exterior Insulation and Finish Systems; use the index entry or section for "ANSI/EIMA 99-A-2017 EIFS termination clearances" to confirm that ANSI/EIMA EIFS installation practice commonly requires EIFS to terminate at least 6 in.
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