Deep inside the red dunes behind the Faya ridge, our glazing sub pulled a fistful of fine silt straight out of a mock-up’s drainage weep hole. We’d specified a standard European capillary break that works brilliantly in Munich but turns into wet mortar out here within forty-eight hours. Ended up redrawing the sill baffle right there on the hood of his truck with a grease pencil, and five years later the track hasn't jammed once.