How to ventilate a “room in the attic” truss system
Hi. Building a two story small house – 28′ x 26′ in zone 4A, TN. Using a “room in the attic” truss system.
The trusses will be the 3rd story. The room in the middle will be 12′ wide and the length of the house, with a window at each end. The knee walls will be 5′.
I’m not sure how to ventilate or if it’s necessary. The 7′ on each side that will be behind the finished room. This will be the webbed part of the trusses.
Installing a metal roof, so do not want a ridge vent. Thought of soffit vents plus a gable vent at each end of the 7′ section, plus blown-in floor insulation. Other thought is seal it tight and don’t ventilate, it’s a small area and perhaps doesn’t need ventilation(?).
Any ideas would be appreciated.
GBA Detail Library
A collection of one thousand construction details organized by climate and house part