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Manufacturer and supplier of roof products and accessories for the metal building industry since 1964
Conventional / Built-up Roof Curb
Our conventional / built-up roof curbs feature full penetration continuous welds at all seams. We fabricate the curbs with a 3″ perimeter flat flange around the base of the curb, in addition to a 1.5″ x 1.5″ treated wood nailer to accept roofing material. Curb walls are finished with 1″ rigid insulation and may be fitted with an interior white liner. Additionally, higher R-Value insulation is available. We provide scaled CAD drawings with all orders.
Features
- Perfect for wood or metal decking surface
- Steel construction w/ 1.5"x1.5" wood nailer
- Full-penetration continuous welds
- 1" rigid insulation in curb walls (R7.2)
- Partitoned duct hangers/shelves/panels for HVAC or Fan equipment
- Description
- Model Guide
- Sizes and Weights
- Documents
Specifications
| Material | 18 GA, 14 GA or 16 GA aluminized steel 1″ Rigid Insulation R7.2 (higher R-Values available) |
| Construction | Full penetration welds, thoroughly tested Mitered corners for true square top |
| Curb Base Flange | 3″ perimeter base flange Custom base flange available |
| Curb Top | Level top when specified Skylight curbs slope with roof 1.5″x1.5″ treated wood nailer |
| Dimensions | 12″ height typical 1.5″ top flange 3″ perimeter base flange |
| Finish | Galvanized steel mill finish |
| Certifications | Engineering calcs (additional costs apply) |
| Warranty | 1 Year |
Options
| Curb Liner | Conceals insulation, mill or white finish, complete kit for install |
| Ridge Mount | Installs on ridge condition, double pitched |
| Collar Top | Square-to-round transition |
| Non-Insulated | Cost savings when insulation not required |
| High R-Value |
2″ thick insulation for R14 value |
| Damper Shelf | Damper support for exhaust fan |
| Duct Supports | Insulated blank-offs, duct supports for HVAC equipment |
Curb Model Guide
| Model | L x W x H | Side Flanges | Closures/ Caps |
Curb Top |
Insulation | Gauge | Material | Finish | Options (add all that apply) |
| CBM: Conventional Built-up or Membrane Roof |
R: Flat Flange | NA | L: Level
S: Slope w/ Roof |
Y: Insulated
X: Not Insulated |
14
16 18 |
B: Steel
C: Stainless Steel |
NA | CL: Curb Liner
RM: Ridge Mount CT: Collar Top |
Example
CBM-48x96x12-T1SY-080″AM-CL
Terminology
Flat Side Flanges (R): flat side flanges 3″ typical
Ridge Mount (RM): Inner weight-bearing curb and outer flashing curb (heavy equipment)
Curb Liner (CL): white or mill finish liner on inside of curb wall; conceals insulationFloating
Collar-Top (CT): square-to-round transition for pipe penetrations
All curbs custom-sized to meet project specifications.
Check out our Product Line Card
R&S manufactures a vast array of products to fit your project needs. We aim to supply all of your metal building roof accessory needs, not just one product. Why go to multiple vendors when R&S can supply it all?
