Storm damage comes from above, not up from the ground. When a winter atmospheric river parks over the San Fernando Valley, wind-driven rain finds the weak points in a North Hollywood roof, the low-slope sections, worn flashing, and old seams, and pushes water into the attic and down the walls. The first job is to close that opening with an emergency tarp, then dry out everything the water reached before it stains and warps.
How a winter storm gets water into a Valley home
The roofs are built for sun, not for days of sideways rain. That is why the big winter storms cause the intrusion calls crews see every year.
- Low-slope roofs common on Valley homes pond water instead of shedding it.
- Wind drives rain under tiles and behind flashing at chimneys and vents.
- Water tracks along rafters and shows up as a ceiling stain far from the leak.
- The Ready.gov severe weather guidance is a good primer on preparing for these storms.
Emergency tarping to stop the intrusion
You cannot dry a home while it is still taking on water, so stopping the source comes first. Crews make the roof safe and watertight enough to hold until repairs.
- Crews tarp the opening with anchored, overlapped material that sheds the next band of rain.
- Crews trace where the water actually entered, which is rarely under the stain.
- If the leak is a smaller, ongoing one, the roof leak crews handle it.
- Crews track incoming weather from the National Weather Service Los Angeles office so tarps hold through the whole system.
Drying out the attic, walls, and ceilings
Storm water hides in insulation and framing where you cannot see it, so drying has to reach up into the structure, not just the visible ceiling.
- Crews remove soaked insulation that would otherwise trap moisture for weeks.
- Crews set air movers into the attic and wall cavities, then run structural drying to a verified standard.
- If water pooled on a floor below, crews extract it like any other water loss.
- Curious about scope? The cost calculator gives a quick estimate.
Rain coming through the ceiling in this storm? Storm damage response and tarping cannot wait.
☎ Call (747) 850-6138Storm-season crews across North Hollywood and the east Valley
From the older homes off Magnolia Blvd to the low-slope roofs of Sun Valley and Valley Glen, local crews tarp and dry out attics through every winter storm cycle. Crews know which North Hollywood roofs leak first when the wind turns. See a ballpark for your loss with the cost calculator.