We are drying in the roof with DuPont Tyvek breathable membrane.
Tyvek Weatherisation Systems make homes and more comfortable and
more energy efficient and protect them from water damage. Tyvek
can help protect against air infiltration and manages moisture vapor.
Because the whole roof is now a vent there is less likelihood of
condensation and damp in your roof space.
With Tyvek you can do without the rest of your roof ventilation.
DuPont analyzed our roof and did a report showing how Tyvek will
perform based on ou roof design and size and generated a report
for the building inspectors.