Flat Slab

Flat Slab is a terra cotta shingle tile with a smooth surface and a square butt. It is a clay residential roof tile made in two thicknesses, 3/8 inch and 5/8 inch, with the same 6-inch by 12-inch face. Made in America for over 125 years is printed on the Flat Slab sheet.

• Weight per square: 1300 lb at 3/8 inch; 2000 lb at 5/8 inch
• Pieces per square: 480 for each thickness
• Overall size: 6 inches by 12 inches by 3/8 inch, and 6 inches by 12 inches by 5/8 inch
• Exposure: 6 inches by 5 inches for both thicknesses
• Recommended minimum slope: 5:12 for both thicknesses
• Base texture: Smooth
• Installed barrel height off deck: not applicable

A Flat Slab tile is 6 inches wide and 12 inches long in both thicknesses. The 3/8-inch tile brings a square to 1300 lb and the 5/8-inch tile brings it to 2000 lb, while the count stays at 480 pieces with a 6-inch by 5-inch exposure. The header course is the one fitting with a single weight, 3.7 lb, for both thicknesses.

The base texture is Smooth, with a square butt. The tile is also available in all Ludowici custom textures.

Flat Slab is made in all standard and custom matte colors, mists and blends developed by Ludowici, in either thickness.

• Miami-Dade NOA No: 12-0904.14
• State of Florida Approval No: FL 13777
• ASTM C1167 Grade 1 Roof Tile with water absorption less than 2%
• Class A fire rated
• Miami-Dade NOA No: 23-0125.07
• IAPMO E1077 R0452 evaluation report
• Florida Building Code evaluation report

The Flat Slab fittings are listed with two weights per piece where thickness changes the weight, the first for 3/8 inch and the second for 5/8 inch.

• Long top: actual size 6 inches by 9 inches, exposure 6 inches by 5 inches, 2.1 and 2.8 lb
• Short top: actual size 6 inches by 5 inches, exposure 6 inches by 2 inches, 1.2 and 1.6 lb
• End band: actual size 3 inches by 12 inches, exposure 3 inches by 5 inches, 1.4 and 1.9 lb
• Under eave: actual size 6 inches by 7 inches, exposure 6 inches, 2.0 and 2.7 lb
• Header course: actual size 6 inches by 12 inches, exposure 6 inches by 9 inches, 3.7 lb

Hip and ridge pieces for Flat Slab come in four trim groups, plus an Old Style group.

• V-Hip and Ridge group: V-Hip Starter, V-Hip, V-Ridge, V-Closed Ridge End and V-2 Hip 1 Ridge Terminal
• #118/#211 group: #168 Hip Starter, #118 Hip Roll, #211 Ridge, #211 Closed Ridge End and #118/#211 2 Hip 1 Ridge Terminal
• Circular Cover group: CC-Hip Starter, CC-Hip, CC-Ridge, CC-Closed Ridge End, CC-2 Hip 1 Ridge Terminal and CC-Low Bump terminal
• #102/#206 group: #152 Hip Starter, #102 Hip Roll, #206 Ridge, #206 Closed Ridge End, #102/#206 2 Hip 1 Ridge Terminal, #405 High Bump terminal and #406 High Bump Gable Terminal
• Old Style group: Bonnet Hip Starter, Bonnet Hip Roll, Interlocking Ridge and Aries Hip Plate

The Bonnet Hip Starter, Bonnet Hip Roll and Aries Hip Plate carry an asterisk: the roof slope on each intersecting roof plane must be identical to use those pieces on Flat Slab.

Five accessory tile types are described for Flat Slab, each finishing a different part of the roof.

• Terminal: a tile installed where hips and ridges intersect
• Ridge tile: shaped to cover the uppermost horizontal part of the roof
• Hip starter: installed at the bottom of the hip, also known as a bullnose
• Closed ridge end: a closed-end tile installed at the gable end of the ridge
• Hip tile: shaped to cover the external angle where two sloped planes meet

The Flat Slab section drawings cover the eave, side wall, head wall, closed rake edge, open rake edge, V-hip, #118 hip, bonnet hip, V-ridge, #211 ridge, #211 vented ridge, rounded interlocking ridge and field cut valley. The drawing numbers run FS-100 to FS-104 for eave, wall and rake sections, FS-200 to FS-202 for hips, FS-300 to FS-303 for ridges and FS-400 for the field cut valley. The FS set is published in PDF and AutoCAD formats, and the full FS set is also published as zip files.

• FS-100: Section at eave
• FS-101: Section at side wall
• FS-102: Section at head wall
• FS-103: Section at closed rake edge
• FS-104: Section at open rake edge
• FS-200: Section at V-hip
• FS-201: Section at #118 hip
• FS-202: Section at bonnet hip
• FS-300: Section at V-ridge
• FS-301: Section at #211 ridge
• FS-302: Section at #211 vented ridge
• FS-303: Section at rounded interlocking ridge
• FS-400: Section at field cut valley

The Ludowici shingle tile range also includes Antique, Brittany, Calais, Colonial, Cotswold, Cottage, Crude, Georgian, Greenwich, Norman, Provincial, Rustic Colonial.

Flat Slab is manufactured in the United States and carries the Ludowici 75-year warranty against color fading and manufacturing defects. Product sheet LRT-540 covers the Flat Slab clay roof tile shingle.