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Question DetailsAsked on 11/13/2016

We just bought a brand new house with storm proof windows , at night (mostly) I hear a noise in the MB window which

Noise sounds like a stone being thrown against the window or crack, but there's no evidence of anything like that. Can anyone explain this? Windows have been checked and are solidly installed. The crack is very loud an can wake one up at nite.

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2 Answers


If you are sure it is the window making the noise - could be the glass is too tightly constrained and is cracking, and the crack just has not yet made it into the visible zone. IF this is the case, keep the record of the complaint to the builder (who presumably is who checked it out) so you have a record of the warranty claim.

If it is shrinkage of the glass (almost certainly outer pane if multi-layer glass) in the cold so that is when the crack lengthens, a crack will almsot certainly show either as a crack in the visible part of the pane, or if along the edge due to crack initiation during the sealing of the sealed pane unit, by air leakage into the interior between the panes and moisture condensation the "insides" of the panes - almost always on the innear surface of the outer pane or on the plastic center film if "triple-pane". ANY condensation inside a multi-pane window unit indicates a leak and the glazing unit (or with some brands the entire window unit) should be replaced as soon as you see that, while still under warranty.

Other possibility is it is a sound elsewhere that just sounds like it is coming from the window, but might actually be contracting attic trusses or rafters as they acclimate to normal attic humidity - can cause quyite loud "cracks", "creaks", "pops", or in severe cases cracking or splintering wood sounds.

Also - if there is a wood deck outside there, check out the descrtiptions of decknoises in some of the attached similar questions with answers, linked here FYI -

Answered 3 years ago by LCD



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Answered 3 years ago by Member Services

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