Extreme heat and siding choices
Fresno summers are extremely hot; National Weather Service records show 69 days at or above 100°F in 2021. Heat drives siding choices here. Vinyl softens at high temperatures, and dark colors, tight installation and reflected sunlight from nearby low-emissivity windows can warp it. If you choose vinyl, consider lighter colors or heat-resistant formulations and insist on installation that allows for expansion. Fiber cement and engineered wood are more stable in heat. All finishes fade faster on south- and west-facing walls.
Paint and caulk
On primed fiber cement and engineered wood, use a quality exterior paint suited to high UV exposure. Inspect caulk on sunny walls every year; heat dries it out and opens gaps that let water in during winter rains.
Winter fog and rain
Fresno's rain comes mostly in winter, and tule fog keeps walls damp for days. Proper flashing at windows, doors and roof-to-wall intersections, and a water-resistive barrier behind the siding, keep that moisture out of the walls.
Dust and silica
Fresno County is part of the San Joaquin Valley area the EPA has classified as not meeting federal fine-particle standards. Cutting fiber cement produces dust containing crystalline silica, which is a health hazard. Ask the contractor how they'll control dust, such as shears or saws with dust collection, and where they'll cut.
Evaporative coolers and irrigation
Wall-mounted evaporative coolers and sprinklers near the house can soak siding. Make sure coolers drain away from walls and sprinklers don't spray siding.
Before you hire
Ask Fresno siding contractors which product suits extreme heat, how they'll allow for expansion, how they'll control cutting dust, whether they'll inspect sheathing and replace the water-resistive barrier, and what warranties cover. Look up the contractor's California license with the CSLB.
Choosing a material for Fresno
Fiber cement is popular in Fresno for its stability in heat and its fire resistance. Engineered wood offers a wood look at lower weight. Vinyl can work with lighter colors and careful installation. Ask the contractor to show you each product on a sunny wall of a house they've already done.
Older homes
Older Fresno homes may have wood siding or trim with lead-based paint, which requires lead-safe work practices during removal. Ask the contractor how they handle it.
Maintenance
Wash siding gently with a hose and soft brush rather than a pressure washer, inspect caulk every year on sunny walls, and touch up paint as needed. Keep plants trimmed back so walls can dry after winter rains.
Permits
Re-siding may need a permit from the City of Fresno or Fresno County, especially when sheathing is replaced or fire-rated assemblies are involved. Ask whether the permit is included.
Windows and doors
If your windows are near the end of their life, replacing them during the siding project lets the flashing be integrated with the new siding, and avoids disturbing it later.