Owens Corning shingles
GAF snow country shingle over ridge vent

What mods need to be made to the existing roof to get to ridge venting? May only need to be done to the main roof line which runs coast to coast (east to west). There are 4 or 5 dormer/gables that are small and may not need the venting. The main peak roof line is well above them anyway.

I think they went dark to contrast with white siding (we bought it......didn't build it). So will need to come up with acceptable lighter color. I put white shingles on chicken house for that very reason, but it has red barn siding.

Additional reason for more ventilation is house was built on a slab. HVAC ducts run in attic. AC in hot attic. Heat in cold attic. Cannot say enough bad things about that. Ought to be a hanging offense.

Cost estimate was $25k plus.

If you install ridge vent,,,,,, you need to close gable vents,,,,, just my humble opinion…….

Yes standing seam eliminates exposed fasteners. from my understanding. It has a clip that goes over the Ridge of the steel and under the next piece going down.

Looked to cost 3x as much as pole barn steel when I looked. Seems like it was also heavier gage also.

I put on stone coated steel singles five or six years back. Expensive, but they look good and the wind don't take em' off.

Spent some time looking at the plastic panel ridge vent products. In theory can see how they work. Many utubes that are almost falling down funny in how bad they are. Example? Watching guys explain why you need a 3 inch nail to hold it down, then driving it into a 1/2" roof deck.........but not into a rafter under the deck. They would also do better to show attic temps before and after install. Perhaps some flagging tape showing air flow thru the vent, once installed.

But aside from all that, we get heavy, wind driven rain.........and when snow is heavy, lots of wind driven powder. Spindrift. Would be concerned both rain and snow could get driven into the ridge, but maybe no worse than mushroom caps allow now?

Not sure what we did right but my contractor and me are scratching our heads. Ranch style house that is going on 29 years with the same roof. Ridge vent and soffit vents when new. I added the biggest peak vent on one end to address a moisture problem caused by a faulty install of a fresh air duct. Found problem after install of peak vent. Just now starting to think about maybe a new roof. Was wanting to go metal but you folks have me pulling back on the reins. Any advice? Shingles now are medium brown. No tabs broke yet and just starting to see fiberglass. These shingles are nothing special.