General B Contractor Trade Practice Exam 2025 - Free Contractor License Practice Questions and Study Guide

Rubber-soled shoes are considered the safest option for a roof with a 4:12 slope due to their excellent traction and grip. The material of rubber provides a high coefficient of friction against the roofing surface, which is crucial for maintaining stability and preventing slips and falls, especially on sloped surfaces. When working at heights, such as on a roof, having footwear that offers both grip and support can significantly reduce the risk of accidents.

Leather-soled shoes, while durable, can be slippery on surfaces such as roofing materials. Steel-toed boots, although providing added protection for the toes, may not always have the best sole for traction, depending on the specific design. Canvas shoes lack adequate grip and support, making them unsuitable for the safety demands of roofing work. Therefore, rubber-soled shoes combine the necessary features to ensure worker safety on a roof with a 4:12 slope.