Table of Contents
What is a curb adapter for a rooftop?
Roof curb adapters are devices used to create an opening in a roof. This separation between the roofing material provides structural support for the equipment that will sit on it. Use this tool to help enable an existing roof curb to be used when replacing a fan or ventilator.
How do you measure a curb for a rooftop unit?
In most cases, the roof top unit base rail seats down around the original roof curb, naturally making the unit larger than the roof curb itself. Instead, measure the highest point of the roof curb that is roofed into the building, or right below the unit base rail.
What are HVAC roof curbs?
In the context of HVAC RTUs, a curb is a device used for mounting one of these heavy systems on a rooftop. The curb creates an opening in a roof, separating the roofing material and providing structural support for the equipment that will sit on it.
How does a roof curb work?
Rooftop curbs are raised metal frames designed for mounting structures safely to your roof. The frames are used for accessories that mount above the roof and those that penetrate the roof’s surface. A properly installed roof curb ensures that the accessory has a level platform for attachment.
What is a plenum curb?
Plenum curb will convert a dedicated down discharge roof top unit into a plenum curb. Pre-Fabricated Plenum roof curbs are available in the following: Insulated. Non-insulated. Vibration isolated.
Why are roof curbs important?
Rooftop curbs are the essential component required to protect your investment in equipment, ensure safety, prevent inefficient operation, and avoid damaging water leaks.
What is wood nailer curb?
Platform Curb – This curb type has an insulated metal covering, standard wood nailer, and is intended to support horizontal rooftop units, split system condenser sections, or similar type items. It can be roofed in, or fastened to a concrete slab.
Can Fab curbs?
CanFab roof curbs are built of heavy gauge galvanized steel to ensure equipment support without curb deflection….Metal Building Roof Curb:
- Heavy Gauge Galvanized Steel.
- Duct Supports & Deck Pans Included.
- Internally Lined With 1”-1.5# Insulation.
- Shipped Fully Assembled.
- Gasket Material For Top Of Curb Provided.
Should flashing go over or under shingles?
Flashing should overlap the roof-covering material, but on asphalt shingle roofs, for aesthetic reasons, the part of the headwall flashing that extends down over asphalt shingles is often covered with a course of shingle tabs.
Does roofing felt go under flashing?
Installing roof drip edge flashing properly The best way is to install the roof drip edge only along the eaves first, then place ice-and-water barrier (in the snowbelt) or felt paper (underlayment) over the drip edge. This lets any water that gets on the roof run down the underlayment and over the drip edge.
Should flashing be visible on roof?
Roof Flashing Is Not Always Visible: While some areas are exposed and fairly obvious, like where shingle meets brick, others may be hidden behind siding or other roofing materials. It is always a good idea to hire professional. They can better identify if your roof flashing needs work.