There are several types of ladders in the construction industry. Extension, step and job made ladders are what we see and use most of the time. No matter what type, ladders with broken or missing rungs, damaged side rails, defective construction or improperly set up should not be used. Let's review some important points when setting up and using extension ladders.
If the extension ladder is in good condition, make sure the latches secure properly and the slip resistant feet are present. Get help to move heavy ladders and don't raises it until you check for any overhead power lines, check the surface the ladder will rest on to be sure it's stable and that the ladder is not near vehicle or equipment traffic or too close to the kettle. Don't rest it on gutters, glass, or weak supports. Extend the ladder at least three feet above the landing with a slope of 1 to 4, (for every four feet in height the base should be one foot away from the building). Secure the base from kicking out from the building and have a coworker hold the ladder until you can secure it at the landing. Check to be sure the landing and area around the base are free of debris which cause a coworker to trip or fall.
Now the ladder is ready for use but coworkers should be trained on using the ladder safely before they climb.