Getting your roof through monsoon season

The desert monsoon does not do drizzle. It arrives as a wall of wind and dust followed by an intense burst of rain, and it finds every weakness on a roof in about twenty minutes. Then it does it again a week later.

Almost every emergency call we take during those months traces back to something that was visible, and fixable, in spring. Here is the checklist we would run on our own homes.

1. Clear the drainage. All of it.

This is the highest-value item on the list by a wide margin, and the one most often skipped.

Blown sand, palm fronds, bougainvillea litter and roof grit accumulate steadily all year in valleys, behind parapets, around drains, in scuppers and in gutters. On a low-slope roof, a blocked drain does not cause a leak in itself — it causes standing water, which finds the nearest lap or seam and gets under it. On a tile roof, packed debris in a valley holds moisture directly against underlayment that is already working hard.

Clear it before the first storm, not after.

2. Look at every penetration

Pipe jacks, vent boots, swamp cooler and HVAC curbs, satellite mounts, solar stanchions, skylights. Anything that comes through the roof is a hole that something is supposed to be sealing.

Rubber boots are the usual culprit in this climate. UV turns them chalky, then they crack in a ring around the pipe. It is a ten-dollar part and a twenty-minute job in May. In August, with water tracking down the pipe into a ceiling, it is a very different conversation.

3. Check the edges and the ridge

Wind gets under things. Loose edge metal, lifted shingle tabs, ridge or hip pieces that have worked free, tiles sitting proud of their course — all of it is a lever for a 60 mph gust to peel something back.

This matters more the closer you are to the wind corridor. Desert Hot Springs and the north end of the valley take a genuinely harder wind exposure than the rest of us, and roofs there need attachment specified for it.

4. Trim what is over the roof

Palm fronds and overhanging limbs abrade roof surfaces every time the wind blows, and they become projectiles in a storm. They also drop the debris that blocks the drainage from item one. Trimming is cheap insurance.

5. Go into the attic with a flashlight

Ten minutes, once a year, before the rain. You are looking for daylight, dark staining on sheathing, compressed or discoloured insulation, and anything that smells damp. Interior evidence often shows up long before there is a visible ceiling stain, and finding it early can be the difference between a repair and a replacement.

6. Photograph the roof now

Take a few dated photographs from ground level from each side of the house before the season starts. If you do end up filing a storm damage claim, being able to show a carrier what the roof looked like immediately beforehand is worth a great deal — and it costs you five minutes.

After a storm

Do not climb up. Wet tile is lethal and storm-damaged roofs have hidden soft spots.

From the ground: look for displaced or missing tiles or shingles, lifted edges, debris piled on the roof, and any new water staining inside. Photograph everything you can see and note the date of the storm. If there is an active leak, get a bucket under it, move what you can out of the way, and call a roofer for temporary protection — a tarp fitted properly buys you weeks.

Then get an inspection. Carriers limit how long after a loss you can report it, and evidence gets weaker every week.

The honest summary

Maintenance is the least interesting line on a property budget and the one with the best return. A morning of clearing drainage and resealing penetrations in May prevents the large majority of what we get called out for in August.

If you would rather someone else did it, that is what our maintenance visits are for — and the inspection that goes with them is free.