EIFS EIFS Moisture Management & Water Intrusion Prevention 2

Question 1

A properly detailed EIFS termination at grade level should maintain a minimum clearance above finished grade of:

Accepted Answer

6 inches

Answer

EIFS industry standards require a minimum 6-inch clearance between the bottom termination of the system and finished grade to prevent moisture wicking and splash-back damage.

Question 2

What is the function of backer rod and sealant at EIFS expansion joints?

Accepted Answer

To create a weathertight seal while accommodating movement

Answer

Backer rod controls sealant depth and shape factor while the sealant itself forms a flexible weathertight seal that can expand and contract with building movement.

Question 3

Which instrument would an EIFS inspector use to locate concealed moisture within an installed wall assembly non-destructively?

Accepted Answer

Non-invasive capacitance moisture meter

Answer

Non-invasive capacitance moisture meters detect moisture behind the surface without penetrating the finish, making them ideal for scanning EIFS walls.

Question 4

When inspecting an EIFS installation, ponding water on horizontal surfaces such as window sills is most likely caused by:

Accepted Answer

Inadequate slope or missing drip edge detailing

Answer

Horizontal ledges without sufficient slope or drip edge detailing trap water, which can then migrate behind the system at sealant joints.

Question 5

Through-wall flashing in a drainage EIFS system should be integrated with the WRB by lapping the flashing:

Accepted Answer

Under the top of the WRB and over the bottom

Answer

Proper shingling requires flashing to lap over the WRB below and under the WRB above so water always sheds outward and downward without entering the wall.

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

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

EIFS EIFS Moisture Management & Water Intrusion Prevention 2