Reference values before you start
The checkpoints below are general siding care. For context, here is what NOAA's engineering weather data publishes for its Joplin station (elevation 981 feet):
- 99% winter design temperature: 10°F.
- 1% summer design temperature: 94°F, with a mean coincident wet-bulb temperature of 75°F.
- Hours with the wet-bulb temperature above 73°F: about 756 in an average year; above 67°F: about 2,062.
- About 52 freeze-thaw cycles in an average year.
- 50-year basic wind speed: 90 mph (3-second gust at 33 feet).
- 100-year rainfall rate: 3.5 inches per hour.
Census figures for Joplin
U.S. Census Bureau QuickFacts counts 22,710 households in Joplin for 2020-2024, with 2.24 persons per household, and lists an owner-occupied housing unit rate of 53.4% for the same period.
The kit
Keep these together in one bag so a walk takes no setup:
- phone camera, with photos taken from the same corners every time;
- binoculars for upper courses and the roofline;
- a flashlight for the shadow under eaves and porch ceilings;
- a stiff putty knife or screwdriver for pressing gently on trim;
- a tube of exterior sealant and a utility knife for small fixes;
- a notepad, or a dated note on your phone.
Checkpoint 1: the first mild week after winter
- Circle the house slowly and count anything that has popped out of its lock, cracked or pulled away from a corner post.
- Press the lowest course, window sills and door trim. Wood that gives under light pressure has been holding water.
- Check sealant at window heads and around the dryer vent for splits.
- Inside, run a hand along outside walls in closets and behind furniture for damp spots or blistered paint.
- List the repairs and decide which need a pro.
Checkpoint 2: late spring gutters and drainage
- Clear the gutters, then run a hose through each downspout to confirm it flows.
- Set downspout extensions so they empty well clear of the foundation.
- Look up at every spot where a roof edge ends against a wall. A kick-out flashing there turns water into the gutter; streaks below the spot suggest it is missing.
- Re-aim sprinkler heads so they water the lawn and not the bottom boards.
- Pull mulch and soil back so the siding keeps clearance above them.
Checkpoint 3: midsummer sun and shade
- From across the yard, sight along the sunniest walls for waves or bulges in vinyl.
- Keep grills, smokers and patio heaters well away from siding; reflected heat from windows nearby can also warp vinyl.
- On shaded walls and behind shrubs, look for green or black growth and clean it with a soft brush, a garden hose and a cleaner the siding maker allows. Skip the pressure washer, which can drive water up behind laps.
- Trim plants back so air moves between leaves and the wall.
- Do painting or caulking within the temperature and humidity range printed on the product.
Checkpoint 4: fall sealing
- Replace split caulk with an exterior sealant rated for joint movement.
- Seal gaps around pipes, cables, meters and light fixtures.
- Touch up paint on wood and fiber cement while temperatures still suit the label.
- Clean gutters again once leaves are down.
- Drain outdoor faucets, store hoses and move firewood and bins off the walls.
Checkpoint 5: after a severe storm
Walk the house once it is safe to go outside.
- Photograph any damage before touching it, with a wide shot of the wall and close-ups of each piece.
- Cover exposed sheathing or housewrap with a tarp or plastic sheet until repairs.
- Pick up loose pieces and keep them; they help match color and profile.
- Call your insurer before permanent repairs if you plan to file a claim, and get your own contractor's written estimate alongside the adjuster's.
- Be wary of anyone who knocks unannounced and asks for a large deposit up front.
Signs worth a professional look
- trim or boards that feel soft or spongy;
- paint that peels in the same patch year after year;
- panels pulling away, rattling or buzzing in wind;
- gaps where housewrap or sheathing shows;
- musty smells or stains inside along an outside wall;
- insect trails or sawdust near joints in wood.
When you call, ask the contractor which local permits the job needs: which city permits does it require, and who pulls them? Ask what state license, if any, covers the work and what the number is, and ask for proof of liability coverage and workers' compensation.
A repair log
Note the siding brand, profile, color and installation year, and keep a few spare pieces in the garage. After each checkpoint, write the date, what you saw and what you fixed. Store receipts, warranty papers and the maker's care sheet with the log. A warranty claim can ask for proof of product and install date, and a dated record makes any later quote easier to scope.