Construction Supervisor License Practice Exam 2025 – All-in-One Study Guide for Exam Success!

Question: 1 / 400

What is the minimum thickness required for particleboard used as floor underlayment?

1/2 inch thick

3/8 inch thick

1/4 inch thick

The minimum thickness required for particleboard used as floor underlayment is 1/4 inch thick. This specification is important because adequate thickness ensures that the particleboard provides sufficient support and stability for the flooring material placed on top. Thicker underlayment options may provide enhanced durability and insulation properties, but the minimum requirement ensures compliance with building codes.

In the context of flooring, the choice of underlayment plays a critical role in overall performance, including sound insulation and moisture resistance. Using underlayment that does not meet the minimum thickness may lead to issues such as warping or insufficient support, resulting in future problems with the flooring installation. Therefore, adhering to the specified minimum thickness is essential for achieving a successful and lasting floor system.

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particleboard may no longer be used as floor underlayment

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