Remove any twist within the cu rb due to roof supports and square the curb.
Hvacmetal roof curbs installation manual.
Secure the curb to the roof support members.
During the coronavirus pandemic the pate company has continued normal manufacturing sales shipping receiving and administrative operations.
Install insulation cant strip roo fi ng materials fl ash ing and counterfl ashing in accordance with the es.
If the roof curb will be mounted on a new building it can be assembled at any convenient location and installed as soon as the roof support members are in place.
Before proceeding with the installation refer to the unit submittal drawings and unit tagging for correct placement of air handler sections.
As shown in ill.
The precise steps to be taken with respect to a specific curb roof penetration or sealing may vary according to particular circumstances job con ditions and manufacturer s specifications.
Does not address roof penetrations.
Pate offers roof products custom curbs metal building roof curbs equipment support rails pipe supports skylights smoke vents and isolation bases.
Verify curb is square and level per instruc tions above.
Curbs as a component are widely available but york.
Read the entire manual carefully to become familia r with the roof curb installation procedures.
Complete installation of roofing and flashing per standard practice.
A good penetration requires more than supplying just any roof curb.
Use tack welding or other suitable fastening method to secure the roof curb in place.
This manual includes the assembly instructions for performance air handler roof curbs.
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Failure to review the submittal drawings could result in performance or assembly problems.
Use 14x3 4 tek screws in each corner to assemble.
Bring field supplied roofing felt up to the top of the curb nailing strips.
Attach 2 sides and 2 ends.
Roof curbs should be supplied by the hvac manufac turer to the general contractor or building manufacturer and installed by an experienced erector.
Remove curb from package and separate parts for top section base section and decks supports.
U afert installation of the roof curb and u before installation of the doas.
See page 7 for renewaire minimum attachment schedule.
Install 2 inch thick boards or rigid insulation around the curb.
Position the clips as shown in the drawings for specific doas models.
Install cant strips around the curb.
Screws are inserted from outside curb inwards.
Mechanical contractors should not be asked to supply or install roof curbs for roo fi ng systems.
In all cases the necessary installation work should be done by and under the supervision of skilled and qualified personnel.
Attach curb to roof surface following industry ac cepted practices.
As a genera l rule the curb should be placed directly on the roof support members.
