Home - Sound Building Supply May 13, 2022 · Everything from stock flashings, to custom roof designs, special fabrication needs, custom flashing, custom vents, or other specialty engineered products. We strive to be that vital par May 13, 2022 · Everything from stock flashings, to custom roof designs, special fabrication needs, custom flashing, custom vents, or other specialty engineered products. We strive to be that vital partner that our customers can depend on, often being able to make special or custom orders within 24 hours.