Install insulation cant strip roo fi ng materials fl ash ing and counterfl ashing in accordance with the es.
Hvacmetal roof curbs installation manual.
Before proceeding with the installation refer to the unit submittal drawings and unit tagging for correct placement of air handler sections.
Use 14x3 4 tek screws in each corner to assemble.
Read the entire manual carefully to become familia r with the roof curb installation procedures.
Install 2 inch thick boards or rigid insulation around the curb.
Roof curbs should be supplied by the hvac manufac turer to the general contractor or building manufacturer and installed by an experienced erector.
Place assembled curb in proper position over roof opening.
Curbs as a component are widely available but york.
Bring field supplied roofing felt up to the top of the curb nailing strips.
In all cases the necessary installation work should be done by and under the supervision of skilled and qualified personnel.
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Remove any twist within the cu rb due to roof supports and square the curb.
Complete installation of roofing and flashing per standard practice.
Screws are inserted from outside curb inwards.
See page 7 for renewaire minimum attachment schedule.
Attach curb to roof surface following industry ac cepted practices.
Mbci offers installation manuals and technical information for our many products visit our resource center for metal roofing and wall installation manuals.
Secure the curb to the roof support members.
Install cant strips around the curb.
As a genera l rule the curb should be placed directly on the roof support members.
During the coronavirus pandemic the pate company has continued normal manufacturing sales shipping receiving and administrative operations.
As shown in ill.
A good penetration requires more than supplying just any roof curb.
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.
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.
Failure to review the submittal drawings could result in performance or assembly problems.
Nail felt into place.
Mechanical contractors should not be asked to supply or install roof curbs for roo fi ng systems.
Remove curb from package and separate parts for top section base section and decks supports.
Position the clips as shown in the drawings for specific doas models.
Attach 2 sides and 2 ends.
Use tack welding or other suitable fastening method to secure the roof curb in place.
Verify curb is square and level per instruc tions above.
Does not address roof penetrations.
