This was a ridge vent with on a flat concrete tile roof. Does anyone know if they make a different ridge tile for this application or even if this application is approved for use on a tile roof.
I have never seen a tile ridge vent. We have plenty of tile roofs here in California and I have never seen what you have there.
The top of that last course tiles is exposed, any rain will be directed under the tiles eventually leading to a leak when the water leaches all of the oils out of the felt paper.
Marcel - it is not a flat roof. It is a gable roof with flat tiles
Michael - very informative web sites. Thanks. But none of those tiles listed in the sites were installed on this roof. Look closely at the tiles and you will see that they are normal ridge tiles.
Ditto what Todd said, the Tiles are on the roof for three reasons, to protect the felt underlayment from the sun and physical damage and to make the house look presentable, the gap is allowing the sun to prematurely deteriorate the felt (or what ever type of membrane is installed) on the decking.
I have never seen a ridge cap on a Concrete Tile roof either, I’ve inspected thousands of them, so I cannot comment on the cap, but the Gap between the last tile and the ridge is a not correct.
O’Hagin’s, Inc. has an off-ridge vent which is the same shape as the roof tile and has a Miami-Dade NOA 09-0316.04.
Visit www.ohaginvent.com for more info.
