The National Weather Service has issued a Heat Advisory through Monday night, covering the Salt Lake Valley, Northern Wasatch Front, Utah Valley, Eastern Box Elder County, and Cache Valley's Utah portion. Most of the conversation around heat advisories is (rightfully) about staying hydrated and keeping your family cool. But extreme heat can also quietly stress your home's structure and systems in ways that lead to real water damage, leaks, and costly repairs down the road.
Here's a plain-English look at what to keep an eye on while temperatures stay elevated — no panic required, just a little awareness.
Your Pipes Are Under More Pressure Than Usual
This one surprises a lot of homeowners. Heat isn't just a winter plumbing problem. When temperatures spike, metal and plastic pipes naturally expand, putting stress on joints, fittings, and connections. Older pipes or those that are exposed to direct sunlight are especially vulnerable — UV exposure can make PVC brittle and prone to cracking over time. Even if a pipe doesn't split outright, heat-stressed connections can begin to weep small leaks that go unnoticed for days or weeks.
On top of that, hot weather means higher water use: more showers, more sprinklers, more hose time. That increased demand adds load to your whole plumbing system. Watch for these warning signs during the advisory:
- Unexplained damp spots on walls, ceilings, or under sinks
- A noticeable drop in water pressure that isn't explained by neighborhood-wide demand
- Your water bill spiking without a clear reason
- Warm water coming out of the cold tap for longer than usual
If you spot any of these, don't wait. A slow hidden leak during a heat wave can soak insulation and drywall for days before you notice it — and that's exactly the kind of moisture that leads to mold.
Your Roof and Attic Need a Second Look
Asphalt shingles are designed to take the sun, but prolonged high heat accelerates their aging. Shingles can heat up, swell, and then contract as temperatures drop at night — and that repeated cycle leads to curling, cracking, and brittleness. The caulking and flashing around vents, skylights, and chimneys can also dry out during heat waves, creating small gaps where water sneaks in the next time it rains.
Attics are especially worth thinking about right now. Because attics are the highest part of the home and often lack sufficient airflow, excessive heat can trap moisture and accelerate shingle deterioration from the inside out. If your attic isn't well ventilated, that heat buildup also forces your air conditioner to work much harder — which brings us to the next point.
After the advisory lifts and things cool down a bit, do a quick visual scan of your roof from the ground. Look for curling edges, missing granules in your gutters, or any shingles that look out of place. Catching a small problem now is far cheaper than dealing with a leak after the next rainstorm.
The Ground Around Your Foundation Is Drying Out
This is one of the less obvious ways extreme heat creates problems for homes. When the ground heats up, soil shrinks and moisture evaporates — and that soil can pull away from the footing of your foundation. Over time, this causes the foundation to shift and settle, which can show up as new cracks in drywall or doors and windows that suddenly stick or don't close right.
The fix is simple: keep the soil around your home's perimeter consistently moist with a sprinkler or a slow hand-water. You're not trying to soak it — just keep it from completely drying out and contracting. Avoid overwatering near the foundation, which creates its own set of moisture intrusion problems.
Your Water Heater Deserves a Quick Check
During a heat wave, your water heater is working in an already-hot environment. The temperature and pressure relief (T&P) valve is a critical safety device that releases pressure if things get too high inside the tank. If that valve is old, corroded, or has never been tested, a prolonged heat wave is exactly when you'd want it to work correctly. Take a look at it — if it's leaking, crusted with mineral buildup, or hasn't been inspected in years, it's worth having a plumber check it out.
If Damage Has Already Happened, We're Here
If you discover a leak, damp drywall, or any signs of water intrusion this week, don't sit on it. The Disaster Repair Team serves Salt Lake, Davis, Weber, Utah, and Tooele counties, and we're available to assess water damage quickly — before it turns into a mold problem. Give us a call and we'll walk you through next steps, no pressure.
Stay cool out there, and keep a casual eye on your home while the heat advisory is in effect. A little awareness now can save a lot of headaches later.