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.
Further Information. 1  How to Clean and Inspect Your Roof (video) 2  Leak-Proof Flashing: Fixing Leaks Around Chimneys (article) 3  How to Replace a Roof Vent Jack (video) 4  How to Repair Leaking Chimney Roof Flashing (video)