Butlerib II roof profile

Butlerib II is Butler Manufacturing's through-fastened trapezoidal steel roof system. This record is for the roof sheet documented by Butler drawing P-081391, revision B, and the current Butlerib II Roof System product sheet. It is a named section, not a generic R-panel description. The profile has a 36-inch installed coverage divided into three 12-inch major-rib modules, and a one-and-one-half-inch rib rise. Two low beads interrupt each pan between major ribs. A replacement sheet must match the major corrugations, the shallow beads and the two different side edges. A panel made to a familiar 36-inch R-panel outline can still miss the Butlerib lap fold or the shallow pan details.

The manufacturer photograph on this page shows the formed steel roof face and makes the repeating rib pattern easy to recognize from above. It cannot show every edge condition beneath an overlap. For identification, compare the photo with a straight-on view of the existing roof, then use the cross-section and an undamaged sheet end to check the edges. Keep the Butler name, drawing number, revision and roof location with the measurement record. These details let a fabricator price the actual profile generation instead of guessing from a building's age or from a generic exposed-fastener product name.

Butler's roof drawing marks 36 inches of finished coverage across three 12-inch modules. Its typical interior major corrugation has a two-and-seven-eighths-inch base, a one-and-nine-thirty-seconds-inch crest flat, and a one-and-one-half-inch rise. Both main webs are marked at 64 degrees. These are unusually useful identification details because major-rib spacing and height alone occur on many unrelated roof sheets. The crest and base control where the formed metal approaches a closure, panel clip or neighboring sheet, while the web angle controls how the rib occupies that space. The profile ordering sheet in the file section presents these callouts and links to the exact manufacturer drawing.

The drawing also details each shallow pan bead. A typical bead is one inch wide, rises one eighth of an inch, and has sides marked 14.06 degrees, with a three-thirty-seconds-inch minimum bend radius shown in the detail. The two beads are separated by a three-inch dimension within each 12-inch major module. Their low relief can be easy to overlook on a weathered roof, especially if dirt or a coating masks the break line. Photograph the section across a clean sheet end and record the bead position before asking a shop to quote. A flat pan without the beads is a different shape even when the three tall ribs line up.

The manufacturer drawing separates an end corrugation without a return and sealant groove from the end corrugation with the folded return. It marks a 116-degree return bend and gives further small edge dimensions and tolerances. That distinction is central to a repair: one sheet edge has to sit against the next sheet in the intended overlap, while the finished 36-inch cover still lands on the building's structural grid. A supplier should examine the full Butler drawing sheet and a sound physical sample showing both ends of the cross-section. A cropped picture of the upper rib cannot establish the concealed edge fold, groove or bearing contact.

The drawing includes a 33-and-one-eighth-inch dimension along a formed-section chain as well as the explicitly labeled 36-inch coverage. The latter is the useful width for planning the number of sheets across a roof; neither figure states the flat steel coil width required by a particular roll set. Record the direction of installation and mark which original edge lies beneath its neighbor when viewed from the outside. Also note any field-cut edge, because trimming a side lap can make an otherwise genuine Butlerib sheet appear to be another profile. The profile PDF is an inquiry summary; the intact manufacturer drawing remains the source for detailed lap tooling.

The current Butlerib II product sheet describes a through-fastened roof system with factory-punched panel alignment, Lock-Rivet fasteners, slotted holes for panel movement and Butler-Cote finish options. Those features explain why the replacement inquiry needs more than a cross-section. A sheet intended to join an existing Butler roof has to meet the project's hole layout, support spacing and fastening arrangement as well as its visible profile. The roof approval drawing identifies a steel panel with a minimum thickness of 0.0235 inch in its accepted system. That number describes the approved drawing's material; an order should separately state the metal thickness and finish required for the building rather than treating geometry as a complete material specification.

Document the roof's purlin spacing, actual sheet length, existing coating color and any end lap or penetration near the replacement area. Note whether the new material is one isolated repair panel or a larger run across several bays. Butler's factory-punched alignment makes hole position a particularly useful item to compare with a removed sheet. If a local shop proposes a sheet with the correct 36-inch cover but a different punching pattern or side lap, ask for a trial section and a written description of what changes at the adjoining roof sheets. The one-page profile PDF carries the section dimensions; the project measurement record carries the length, gauge, finish and connection requirements.

To request a metal replacement, send the one-page Butlerib profile sheet, the complete Butler drawing from the file section, and clear photos of the roof and an undamaged sheet end. Measure the actual eave-to-ridge or end-lap-to-end-lap length rather than estimating from the roof plan. State the quantity, required steel thickness, coating and color, delivery ZIP code, unloading constraints and which side edge must nest beneath the adjacent sheet. If the panel must match a pre-punched line, include hole-to-hole measurements from the existing panel and photographs of the support connection. The 36-inch coverage is an installed width, so the supplier should confirm that its proposed die reproduces that cover after both side edges overlap.

Butler's own building system is the clearest route for an exact Butlerib II metal replacement where the original material can be sourced. Other Texas roll-formers can review the drawing and say whether an available line is geometrically suitable or whether custom tooling and a production minimum would be needed. Ask for a short physical sample across both lap edges before approving a full run. Compare the major crest and base, 64-degree webs, shallow beads and folded end condition on that sample. A quote that says only 'R-panel, 36-inch cover' has not answered the Butlerib II identity question. Keep the final approved sample or drawing revision with the building's maintenance records for the next repair.

A translucent GRP sheet shaped to meet Butlerib II is a separate fiberglass product, not a steel Butlerib II panel in a different color. Give the fiberglass maker the same 36-inch coverage drawing and a sound sample that preserves both lap edges, then state the required light transmission, color, laminate thickness, panel length and quantity. The tall 64-degree webs and the two low beads in each pan must be reviewed together. Ask the shop to identify whether an existing mold reproduces the edge return and sealant groove, or whether a dedicated pattern and trial panel would be required. Check the trial against the adjacent metal sheet on both sides before ordering the full quantity.

Dipcraft Manufacturing invites existing corrugated-metal sketches for fiberglass-panel inquiries and reviews custom shapes against its pattern library and production quantity. Send its team the one-page sheet and the entire original Butler drawing, then ask it to state the tooling route, minimum run and sample process. The steel thickness and roof approval attached to Butler's metal drawing do not describe a fiberglass sheet. For a rooflight or daylighting replacement, record the actual support span and roof location for the GRP producer's own sheet specification. Keep the metal quotation and fiberglass quotation separate so each is assessed against its own material, tooling and connection details.

For a fiberglass match, request a profile review from Dipcraft Manufacturing.

Five Texas metal-panel shops provide a practical regional inquiry route. Metal Warehouse in Sherman makes PBR panels in North Texas. Xtreme Metals describes in-house roofing-panel roll-forming and custom-profile conversations from its Flint and Tyler-area operation. Quality Metals lists panel production and roll-forming in San Antonio. Houston's Lucid Metal Works lists formed roof panels, while All Precision Metals in El Paso produces cut-to-length R-panel sheets. Those published capabilities make each shop a place to send the Butlerib II drawing and ask for a tooling comparison. They do not establish that any shop owns the proprietary Butler roll set, so the reply should identify the actual die or fabrication method it would use.

Send each shop the same package: the dimensioned single-page PDF, the full approval drawing, a physical sample if requested, required metal and finish, exact length, quantity and delivery point. Ask it to answer whether the 64-degree webs, one-and-nine-thirty-seconds-inch crest, two-and-seven-eighths-inch base, shallow beads and 116-degree return can be reproduced together. A shop may propose an alternative panel for a complete roof area; that proposal is different from one sheet intended to join existing Butlerib II. Request a cut-off sample and written confirmation of the lap geometry before the order is released. These contacts cover North, East, Central, Gulf Coast and West Texas; the GRP inquiry above goes to a separate fiberglass specialist.

• North Texas — Sherman: Metal Warehouse — formed metal-panel production; request Butlerib II geometry review
• East Texas — Flint/Tyler: Xtreme Metals — in-house roofing-panel roll-forming and custom-profile inquiries
• Central Texas — San Antonio: Quality Metals — metal-panel roll-forming and replacement-sheet inquiries
• Gulf Coast — Houston: Lucid Metal Works — roofing-metal fabrication and profile comparison
• West Texas — El Paso: All Precision Metals — roll-formed roofing-sheet production to ordered lengths

For a localized repair, mark the panel position on a roof plan and retain the removed section with its overlap orientation noted. For a larger roof renewal, keep the Butlerib drawing beside decisions about insulation, supporting members, penetrations and weather details. The visible roof sheet is only one part of that assembly, and factory punching or thermal movement features can affect the way it is integrated. Total Cladding and Roofing's built-up metal roof installation service covers the broader roof work in which measured panels, insulation and installation sequencing meet. A clear profile identity also helps distinguish a future Butlerib II replacement request from a generic R-panel order when the building changes owners or maintenance teams.

The manufacturer product sheet, approval drawing and one-page profile summary are grouped in the file section below. Use the product sheet for the currently described system, the approval drawing for the documented revision B cross-section, and the summary as a compact inquiry form. Record the date of the supplied sample and the roll-former's proposed tooling with the quote. This creates a traceable path from an existing roof sheet to either a metal replacement or a distinct fiberglass fabrication request.