What safety guideline must be followed for ladder use according to the IRC?

The requirement that ladders must be positioned at the correct angle is crucial for safety during use. According to the guidelines set forth in the International Residential Code (IRC), a proper ladder angle significantly reduces the risk of slipping or tipping over while someone is climbing or working from a ladder. The commonly recommended angle is approximately 75 degrees, which provides stability and balance.

Positioning a ladder too steep or too flat increases the chances of accidents, which can lead to serious injuries. The importance of this guideline reflects a broader commitment to safety practices not only in construction but also in general home maintenance tasks. Proper ladder placement is a fundamental aspect of ladder safety that both homeowners and contractors must adhere to in order to minimize hazards.

The other options are less in line with safety considerations. For instance, allowing any model of ladder or stating that only wooden ladders are permitted ignores the advancements and safety features in modern materials and designs. Additionally, not enforcing weight restrictions could lead to equipment failure and increase the likelihood of accidents. Keeping these factors in mind reinforces why the correct angle is a key aspect of ladder safety as outlined in the IRC.