When thoughts of storm season arise, people don’t just consider power outages and fallen branches – most people think about windows, too. Wind, hail, and general weather concern can really do a number on windows, even if subtle nuances suggest a more costly issue months down the line.
What damage really occurs to windows during a storm and how can it be prevented? The thing is, effective prevention comes from a greater understanding of how your windows function in tandem with household air quality and maintenance. Oftentimes it can be the smallest detail that determines whether a window survives to the next major storm or needs an emergency replacement.
Hail: What Really Happens
You don’t have to get hail the size of golf balls to warrant an issue – a storm’s worth of smaller hail can create microscopic cracks in glass that eventually expand or cave in over time. This is particularly true if temperatures fluctuate; the weaker spots create structural compromises even if a window seemingly holds up in one piece.
In the months that follow a storm, however, issues occur in the frames or seals. Hail impacts (or anything flying through the air, for that matter) can shift window frames millimeters from where they used to be; this could potentially break seals around panes. While this won’t cause leaking immediately, it creates a pocket for moisture to travel in which can, ultimately, lead to wood rot. Eventually the confines of the pocket break down wooden windows while metal ones corrode over time with exposure.
The next issue to consider are double-pane windows that get impacted with hail. If the exterior pane breaks but the interior glass holds up, this inevitably allows the gas that insulated the window to escape. Residents on the interior won’t get any indication something is wrong but energy efficiency decreases significantly. Professional assessments with window installation Minneapolis professionals often note this issue when inspecting in hindsight.
Most impact-resistant windows can withstand hail better than normal glass windows but they’re not impenetrable, either. Typically, frame damage occurs or seals fail due to impact without fragmentation of the entire window.
Wind: More Than Shattered Glass
When residents think of wind damage they think of shattered glass; in reality, it’s much more than that. Winds create such pressure that they bow window frames – allowing broken seals to emerge from interior air pressure.
Wind also shifts frames ever so slightly to weaken their supports; joints and screws attaching them to the home’s structure feel limited stressors from movement – this isn’t even counting how the flexing motion attempts to pull windows out. It might not be noticeable at first, but as these connections loosen throughout time, the window can sit at a weird angle months or years later without anyone being the wiser until they try to operate it.
Compounding seal failure is something many homeowners don’t even know happens; wind-driven rain forces water to penetrate where seal scrapes might otherwise fight it off. The pressure with horizontal rain conditions simply overwhelms even what appear to be well-maintained windows. This moisture often goes unnoticed as mold or rot while the window remains operational – or so it seems.
Older windows – or any windows with compromised weather stripping – find themselves unable to perform when rubber seals harden over time; during excessive winds, they cannot maintain their compression and air or moisture enters the home’s envelope.
Temperature: In Between
Finally, temperature plays a significant factor for windows during storms but it’s not apparent until it’s too late. What’s more is these changes aren’t obvious upon impact. For example, extreme temperature fluctuations cause stress with materials; window glass expands and contracts differently relative to its frame material – which creates stress fractures.
For example, when metal frames ultimately expand or contract (much more than vinyl or wood), cracks emerge from the glazing compound keeping everything secure to one another. The same thing happens when one side experiences thermal shock while the other side does not; whether it’s cold rain on sun-warmed glass or air conditioning on one side creating a significant difference on one interior and exterior surface.
Effective Prevention
Regular maintenance plays a huge role in how windows effectively survive storm damage. From ensuring weather stripping gets checked every year and replaced as necessary, these basically built-in specs help ensure that replacement is minor if at all during heavy rain storms, ice storms or winds if seals are working well.
This goes hand-in-hand with proper cleaning; obviously dirty windows create an unsightly residence, but when screens and panes are dirty they create scratched surfaces that have weak points making them more likely to fail under stress – never mind dirty windows rendering assessments challenging for potential issues.
Protecting windows with storm shutters or impact-resistant films also adds a layer of protection (but only if properly installed; improper installation could create stress points even worse for window integrity). Trimming trees or foliage around windows gives a buffer zone so something doesn’t blow through the air and project onto a window; even small branches can crack glass or damage frames sufficiently if going fast enough.
When To Call In The Professionals
While some storm damage can wait for scheduled maintenance after a big event or at season’s end, it’s not always clear what’s best left alone. For example, any cracks – even small ones – from glass panes need immediate attention even if they seem minor upon first glance – small cracks in bigger panes can spider web across when temperatures fluctuate for a few days.
If water stains develop during storms on clear wooden frames this indicates seal breakage and needs attention before mold creeps in from behind where residents can’t see; even moisture as minor as dampness from rain can create substantial issues.
If windows become sticky – which seems trivial – it could indicate frame alignment that isn’t closing as intended and will continually get worse over time; it’s imperative for licensed window professionals to assess what’s going on as this situation is unlikely to improve without help.
Furthermore, window professionals know what homeowners miss – and what might not be obvious to trained eyes – there could be new hardware-based support conditions showing up days after high winds exist suggesting deterioration underneath siding connections.
The Costs Of Waiting Too Long
Almost always costs soar when homeowners wait too long for repairs. For example, what starts as a simple seal repair for $300 turns into complete replacement due to framing issues if water penetrates up until drywall-level comes into play due to what was once a minor breach – and insurance companies will likely honor claims on water damage associating any storm-triggered event provided there’s proof of time-stamped assessment (homeowners much document all weather events for insurance purposes).
The most expensive repairs happen when homeowners ignore early signs; what starts as an air leak evolves into blown-out internal framing – now assessing repairs for both windows and what’s adjacent – and no storm victim wants to have a repeat task ahead of them.
A smart plan combined with routine check-ups helps windows stay functioning properly for years longer than simple neglect and replacement ever would allow. If homeowners get ahead of problems, they’ll prevent costly mistakes down the road as properly replacing comprehensive systems will provide insight into energy upgrades over window replacements alone as projects of choice instead of projects of necessity during inconvenient storms.
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Becky is the voice behind Life in Velvet, an organised, intentional living blog focused on practical food, calm homes, thoughtful projects, and everyday systems that make real life feel easier. A mum of 3 living in the UK, Becky writes from lived experience, sharing what works, what doesn’t, and the decisions that make family life run more smoothly.
With a background in marketing and content writing, and over a decade of blogging experience, she brings a thoughtful, structured approach to everything from baking and home projects to routines and decision-making. Life in Velvet is where planning meets creativity, with ideas designed for real homes and real life.