Roof Curbs for Flat Roofs
Pre-fabricated roof curbs for fast and easy professional installation

Roof Curb by Active Ventilation Products
Roof Curb Model Shown: RC-20

All Aluminum Construction
Aluminum construction means that our Roof Curbs will neither deteriorate nor rust. The aluminum thickness is .040 inches. Product weight is 4 pounds; comparable wood roof curbs can weigh up to 5 times as much.

Pre-Manufactured for Convenience
Our pre-manufactured Roof Curbs save on construction time spent building on-site wood curbs, are made to specification to eliminate variations found in wooden curbs, and can increase your margins. Insulated models are available.

Self Flashing Roof Curb
The top of the Roof Curb has a 1 inch lip to support the roof vent above and the base has a 3 inch lip for fastening to the roof deck below.

Choose Your Roof Curb Model
4" Diameter
6" Diameter
8" Diameter
10" Diameter
12" Diameter
14" Diameter
16" Diameter
18" Diameter
20" Diameter
24" Diameter
30" Diameter
36" Diameter
42" Diameter
48" Diameter

Roof Curb Dimensional Data Sheet
 (Measurements in inches and pounds)
Model
Diameter
of either
AV / PV
Opening
(A) 

Inside
Diameter
(B)

Flange
Width
(C)

Height 
(D)
Weight 
RC-4

4

9

11

17

12

3

RC-6

6

9

11

17

12

3

RC-8

8

9

11

17

12

3

RC-10

10

11

13

19

12

3

RC-12

12

13

15

21

12

4

RC-14

14

15

17

23

12

5

RC-16

16

17

19

25

12

5

RC-18

18

19

21

27

12

6

RC-20

20

21

23

29

12

6

RC-24

24

25

27

33

12

7

RC-30

30

31

33

39

12

12

RC-36

36

37

39

45

12

17

RC-42

42

43

45

51

12

22

RC-48

48

49

51

57

12

27

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