Multi-Width Slate

Multi-Width Slate is a DaVinci Roofscapes residential roof covering in the company's slate line. It is made as a field tile in five widths, 6, 7, 9, 10 and 12 inches, all 18 inches long. The product is one of several slate and shake formats in the manufacturer's residential range, alongside Single-Width Slate and Province Slate.

The technical sheet is dated 9/29/2025 and replaces the 7/1/2025 edition. It covers this slate format together with the other DaVinci slate and shake formats, and gives separate rows for the field bundle, hip and ridge pieces, starter, and accessory pieces. This article reports the Multi-Width Slate rows. Its related slate-look and shake-look residential roofing products share the same sheet.

The field bundle holds 28 pieces in the five widths of 6, 7, 9, 10 and 12 inches, each 18 inches long. A bundle weighs 41 pounds. 56 nails are required per bundle.

Five coursing rows are given for this tile. Coverage is stated in bundles per square (BU/SQ).

• 8-inch exposure: 6.4 bundles per square, straight coursing, 6:12 pitch or greater.
• 7.5-inch exposure: 6.8 bundles per square, straight coursing, 6:12 pitch or greater.
• 7-inch exposure: 7.3 bundles per square, straight or staggered coursing, 6:12 pitch or greater.
• 6-inch exposure: 8.5 bundles per square, straight or staggered coursing, 4:12 to 6:12 pitch.
• 6-inch exposure: 8.5 bundles per square, straight coursing only, 3:12 to 4:12 pitch.

Staggered coursing is listed at the 7-inch exposure and at the 6-inch exposure on 4:12 to 6:12 roofs. The lowest pitch listed is 3:12.

Weight per square follows the bundle count at each exposure.

• 8-inch exposure: 262.4 pounds per square, 359 nails required.
• 7.5-inch exposure: 278.8 pounds per square, 381 nails required.
• 7-inch exposure: 299.3 pounds per square, 409 nails required.
• 6-inch exposure (both pitch ranges): 348.5 pounds per square, 476 nails required.

For the 18-inch slate, fastening nails come as hot dipped galvanized ring shank coil nails in 1-1/2 inch (38 pounds per box) and 1-3/4 inch (41 pounds per box) lengths, 7,200 pieces per box. Eco Chief SOLARHIDE underlayment comes 10 squares per roll at 54 pounds.

Hip and ridge finishing for this tile is listed in two forms.

• Hip/Ridge two-piece, 6 inches wide, for a 6-inch exposure: 5 linear feet per bundle, 20 pieces, 18.4 pounds, 40 nails, any pitch.
• Hip/Ridge two-piece, 7 inches wide, for a 6-inch exposure: 5 linear feet per bundle, 20 pieces, 21 pounds, 40 nails, any pitch.
• Hip/Ridge one-piece hinged, for a 12-inch exposure: 10 linear feet per bundle, 10 pieces, 12 pounds, 20 nails, 3:12 to 12:12 pitch.

The starter is 12 inches wide by 12 inches long and covers 20 linear feet per bundle at 20 pieces, 31 pounds and 40 nails. The solid accessory piece is 12 inches wide by 18 inches long, 10 pieces per bundle at 25 pounds and 20 nails. The turret accessory is 4 inches wide by 18 inches long and covers 13 linear feet per bundle, with 40 pieces, 21 pounds and 80 nails. Two wide accessory pieces are listed per 6-inch exposure: a 9-inch piece at 12.8 bundles per square and a 10-inch piece at 11.6 bundles per square, each 20 pieces, 28 and 30 pounds, 40 nails.

Standard colors for Multi-Width Slate are Aberdeen, Brownstone, Canyon, Castle Gray, European, Evergreen, Slate Black, Slate Gray, Smokey Gray, Sonora, Vineyard and Weathered Green. Three Cool Roof colors are also listed: Brownstone Cool Roof, Castle Gray Cool Roof and Slate Gray Cool Roof.