Homeowner wants to add insulation under roof sheathing in a vented attic to reduce heat transfer, but is unsure of the best approach and materials.

Existing blown-in insulation (4-5 inches) is insufficient to reduce heat gain in south-facing rooms, and the homeowner lacks clear guidance on adding rigid foam insulation under roof sheathing in a vented attic while maintaining proper ventilation.

Severity

2Mild

Willingness to Pay

implied

Added

May 16, 2026

App Concept

AtticInsight Roof Insulation Planner

An interactive tool that guides homeowners through selecting and installing roof insulation for vented attics. It assesses existing conditions (e.g., attic dimensions, current insulation, roof pitch) and recommends materials (rigid foam, etc.) with step-by-step installation instructions and ventilation best practices. Integrates a materials calculator and local climate adjustments.

Key Features

Attic assessment questionnaire (dimensions, current insulation, roof pitch, vent type)
Personalized insulation material recommendation (rigid foam R-value, thickness, fit) with ventilation compatibility check
Step-by-step installation guide with diagrams and safety tips
Materials and cost estimator based on local pricing
Climate-specific advice for heat reduction and moisture control

Target Users: Homeowners planning DIY roof insulation upgrades in vented attics, particularly in older homes (1950s era).

Revenue Model: $9.99 one-time fee per project report; premium $19.99 version includes personalized expert Q&A

Existing Solutions Mentioned

blown-in cellulose insulation

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