Roof solar gain
Direct sun on the roof deck radiates heat into the attic space all day and into the evening.

Diagnostics
A vented attic in North Texas can run far hotter than the outdoor air on a summer afternoon. Everything you keep up there — ducts, air handlers, storage — operates in that environment. Attic strategy is one of the highest-leverage decisions in a Texas home.
Every recommendation traces back to something we measured.
Likely causes
Direct sun on the roof deck radiates heat into the attic space all day and into the evening.
Mixed or unbalanced ventilation can move less air than assumed, or pull conditioned air out of the house.
Air handlers and ducts in a superheated attic lose capacity before delivering air.
Without air sealing below the insulation, attic air communicates directly with the living space.
Related solutions
Questions
It can help with radiant gain, but it does not address air leakage or duct losses. We recommend it only where it fits the larger strategy.
It frequently reduces the calculated load. Whether that translates into smaller equipment depends on the load calculation for your specific home.
Next step
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