Soffit venting antique timber frame house
Good afternoon. I am residing my 225 year old timber frame center chimney colonial in New Hampshire. I am using hardi 4 inch reveal clapboards and I am building a drain screen with 1×3 furring strips to hold the siding off of the exterior weather barrier. My question comes from building an adequate soffit vent that will flow air. The building currently has no soffit venting. The soffit board is a 2×6 that spans the 10 feet between each timber frame bent. The original builder left a 2 1/2 inch gap between the building and the start of the soffit board which was then covered with a piece of crown molding. So given this 2 1/2 inch gap and my drain screen I will have a continuous air gap all the way from the bottom of the building and into the attic space. I will be using ridge vent 20 made by airvent at the top and bottom of the drain screen to keep bugs from making there way up the way behind the siding so this will slow down at movement. Does anyone have an opinion if this will allow adequate air flow to act as a soffit vent or will I need to drill holes up through the soffit beyond the crown molding through the 2×6 to give adequate soffit venting. The home has no ridge vent unfortunately because of the 8×8 used as a connection between each vent where the ridge board
would traditionally be. The building only has gable end vents at the peak.