Amplitude is the maximum displacement-I.e. the distance from the peak of the wave to its middle (generally zero) Frequency is the number of oscillations (complete wavelengt â¦ hs) per second.
You know the roof is bad if shingles are missing or obviously damaged, or when water stains the ceiling or walls. The goal is to find the leak before the entire roof goes bad. Identifying the true location of roof leaks in the attic.If you have an attic, the easiest way to spot the leak is to up there on a rainy day.Water will reflect light, so bring a flashlight along.Once you locate the source of the water, mark the area.dentifying the true location of roof leaks in the attic. If you have an attic, the easiest way to spot the leak is to up there on a rainy day. Water will reflect light, so bring a flashlight along. Once you locate the source of the water, mark the area.
rooftop hail image by poGosha from Fotolia.com. Hail can do a number on your roof. Damage from a hailstorm can cause leaks and loss of shingles. Shingle damage contributes to faster wear of your roof. Hail damage can be difficult to spot from the ground.A thorough roof inspection must be done from roof level.ooftop hail image by poGosha from Fotolia.com. Hail can do a number on your roof. Damage from a hailstorm can cause leaks and loss of shingles. Shingle damage contributes to faster wear of your roof. Hail damage can be difficult to spot from the ground.