DRAFT — outline only. Do not publish until the figures below are verified. Keep this guide inactive until it is written.
Angle: Test the claim with honest numbers rather than marketing.
This guide must answer: - How much can a cool roof cut roof-surface temperature? - What AC-bill saving does that translate to? - For whom does it work best (top floor)? - When it's not worth it.
Writing rules: answer the question in the first two sentences, put a real number in the opening paragraph, name the specific city or DISCOM where the answer varies, and link to two related guides and the relevant category page.
Verify before publishing: Temperature/saving figures; keep ranged unless sourced.
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Last updated 4 August 2026 · Reviewed by the RenSetu team