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.
Roof leaks can be hard to find, since they often run down the underside of sheathing or rafters to show up far from their actual source. The best time to try and find a leak is when itâs raining outside, or you can also mimic rain conditions by spraying water on the roof.Go in the attic and look for damp spots or water stains, trace them back to their highest point, then examine that part of the roof for any potential problems.he best time to try and find a leak is when itâs raining outside, or you can also mimic rain conditions by spraying water on the roof. Go in the attic and look for damp spots or water stains, trace them back to their highest point, then examine that part of the roof for any potential problems.
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.