The Remington Solar curb mount adapter is designed to create a weather-proof seal over the top of your curb. Remington Solar attic fans will then mount on top of the curb. Works great for tile roofs or flat roofs.Build your curb with 2x4s, then flash from your deck over the 2×4’s. Then attach the curb mount adapter on top of your curb. All Remington Solar attic fans will mount directly on top of the adapter.