Conventional Curbs

Conventional Curb

Curbs Plus Conventional Curbs provide a watertight, heavy‑duty base for rooftop equipment, simplifying HVAC installations and ensuring long‑lasting performance on commercial and industrial projects.

Built from high‑quality materials and engineered for strength, our curbs support units with secure mounting and proper insulation.

Why Choose Curbs Plus Conventional Curbs?

✔ Reliable Construction – Made from G‑90 galvanized steel with fully welded seams, providing a watertight, long-lasting base for rooftop equipment.

✔ Prefabricated for Faster Installation – Ships ready-to-install, saving labor and reducing jobsite errors compared to field-built curbs.

✔ Versatile Options – Available insulated and non-insulated, with multiple sizes to fit small, medium, and large rooftop HVAC units.

✔ Thermal & Moisture Protection – Insulated models help prevent condensation and heat loss, keeping your system efficient and your roof protected.

✔ Easy Specification – All models include drawings and spec sheets for quick project planning and accurate installation.

✔ Durable & Reinforced – Internal angle supports and pressure-treated wood nailers ensure structural integrity for years of dependable use.

CPC‑1 – Insulated Conventional Roof Curb

  • Features:
    • Insulated with 1½″, 3 lb density fiberglass for thermal performance.
    • Raised 3″ cant for secure rooftop unit support.
    • Internal angle reinforcement for added strength.

CPC-1

CPC‑2 – Insulated Conventional Roof Curb

  • Features:
    • Same great construction as CPC‑1 with 1½″ insulation and internal angle support.
    • Fully welded and watertight for dependable rooftop sealing.

CPC‑3 – Insulated Conventional Roof Curb

  • Features:
    • 1½″ fiberglass insulation.
    • Fully welded, reinforced curb body.
    • Ideal where insulation, strength, and watertight performance are required.

CPC‑4 – Non‑Insulated Conventional Roof Curb

  • Features:
    • Same welded, one‑piece construction and wood nailer as insulated models.
    • No insulation — suited for unconditioned spaces.
    • Budget‑friendly option without sacrificing structural quality.

Typical Applications

Curbs Plus Conventional Curbs are commonly used for:

  • Mounting packaged rooftop HVAC units

  • Standard mechanical units on commercial buildings

  • New construction and retrofit applications

  • Projects requiring insulated or non-insulated curb options

  • Installations needing detailed submittal documentation

Designed for Strength & Reliability

Conventional Curbs provide dependable structural support and watertight protection for rooftop equipment. Built to meet industry standards, they deliver long-term performance for a wide range of mechanical applications.