Home Additions in Hayward, CA

Roofing: In the hills, cool-roof materials (meeting California Title 24 solar reflectance standards) can reduce cooling costs by 10 to 25 percent. Near the bay, corrosion-resistant metal flashing is essential.
Siding: James Hardie fiber cement siding is the standard recommendation for Hayward — it resists both moisture near the bay and heat in the hills, and it carries a 30-year non-prorated warranty.
Windows: Double-pane, low-E coated windows with U-factors below 0.30 meet Title 24 requirements and improve energy efficiency year-round.

Hayward home addition contractor. Architect-led design-build for second stories, room extensions, and ADUs. Free on-site estimate. CSLB #1078806.