Roofs
Airtight roofing prevents increased heating and cooling costs.
Do you have a vented attic?
2. Is your attic insulated?
Air seal the attic from the house and add cellulose or other low-embodied energy insulation.
3. Is the insulation sufficient (code minimum or greater is preferred)?
Great! Check to make sure it’s airtight. Seal all penetrations, attic hatch, etc.
Air seal the attic from the house and add insulation.
4. If you have a cathedral ceiling or flat roof—is your roof insulated?
Does it meet code for condensation control? If not, remove and use exterior insulation for condensation control.

Ready to start your green home project?
Find a Green Pro in our directory.
This flowchart was originally conceptualized by Tom Bassett-Dilley of Tom Bassett-Dilley Architects, Ltd.