Geodesic Dome Roof Ventilation

We have built and lived in domes for over 30 years and have designed a ventilated dome system that is 2 dome shells in one.

Geodesic dome roof ventilation. The ventsure large capacity metal dome vent features an exclusive expanded steel mesh grill to help protect against rodents and birds. Geodesic dome structures require 1 3 less building material resulting in a 40 to 60 more energy efficient structure. These domes are 25 in diameter. The air vent roof mount metal vent replacement dome is a replacement dome composed of cold rolled steel and is only used for the air vent room mount metal vent with thermostat.

This space is vented continuously from vents in the vertical sheathing below the base triangles all the way to the top of the dome. As is often the case this roof does not have ventilation. That leaves a bit over an inch of space between the insulation and the sheathing. You will want to take note of the hinge itself.

I would highly recommend building in an air vent at the top of a dome warm moist air rises and if you don t provide an escape the humidity will dramatically increase encouraging mould and mildew growth. Our particular dome uses 2 x 10 struts insulated with 8 attic blanket. We ve been building green for over 30 years. Apparently dry rot is a common issue in geodesic domes due to lack of ventilation in the roof.

I have attached a picture for demonstration. Help protect your roof system from premature deterioration by installing a properly balanced attic ventilation system consisting of cobra exhaust vent at the ridge and adequate intake ventilation at or near the soffit areas of your roof. New roof specs luckily we ve worked with geodesic domes previously said justin jove general project manager at scoot roofing. Due to the steep slope of the dome we chose certainteed s family of products which includes design specs for 20 12 run slopes a reliable roof system.

It appears to me that the best way to tackle these problems is to have a new roof installed and i have a few questions for people who may have experience with these types of structures. The replacement dome for fan tastic vent rv roof vents fvk1020 19 that you referenced measures 14 13 16 inches from the hinged side to the opposite side tall and then 14 13 16 inches from side to side wide. In short they are the best choice in roofing a geodesic dome with asphalt shingles. Suitable for up to 8 12 roof pitch.

Real reviews from real customers. They cannot be used with any other roof mounting vent product.