A 2007 American Housing survey of 6.9 million manufactured homes reported that over 300,000 of these homes had sagging roofs, 180,000 had sloping outside walls, and 98,000 had foundations with visible cracks or crumbling. (trustedchoice.com)
The nonlinear acoustic results were strongly correlated with the presence of visible cracks: Measurements on 25 of the 27 visibly cracked capacitors yielded results that were outside the range of those for capacitors without cracks. (sciencedaily.com)
Another report stated,» [T] he chamber is leaking and... there were visible cracks as well as an insufficient gasket around door. (animallawcoalition.com)