Square Roof Curbs (Non insulated) - Master List
AVP manufactures metal roof curbs to provide a platform for mounting roof vents and exhaust fans on flat roofs Available in 6", 12", and 18" heights to suit any climate zone. Non-flammable, rust-free aluminum roof curb. Aluminum is compatible with EPDM, PVC, and TPO roofing systems. These metal roof curbs satisfy roofing manufacturer warranty requirements and can also serve as a hatch or access port for attic maintenance with a roof cap manufactured by AVP.… Read More
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For 3" Dia. Vent or Fan
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Square Roof Curb for 3" Diameter Vent
Square Roof Curb for 3" Diameter Vent
Model No: SRC-3-H6
Fits Vent Size: 3"
Opening: 5"
Height 6"
L x W: 6" x 6"
Price:Regular price $20.00 USD
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Square Roof Curb for 3" Diameter Vent
Square Roof Curb for 3" Diameter Vent
Model No: SRC-3-H8
Fits Vent Size: 3"
Opening: 5"
Height 8"
L x W: 6" x 6"
Price:Regular price $24.00 USD
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Square Roof Curb for 3" Diameter Vent
Square Roof Curb for 3" Diameter Vent
Model No: SRC-3-H12
Fits Vent Size: 3"
Opening: 5"
Height 12"
L x W: 6" x 6"
Price:Regular price $32.00 USD
Regular priceUnit price per
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For 4" Dia. Vent or Fan
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Square Roof Curb for 4" Diameter Vent
Square Roof Curb for 4" Diameter Vent
Model No: SRC-4-H6
Fits Vent Size: 4"
Opening: 6"
Height 6"
L x W: 7" x 7"
Price:Regular price $24.00 USD
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Square Roof Curb for 4" Diameter Vent
Square Roof Curb for 4" Diameter Vent
Model No: SRC-4-H8
Fits Vent Size: 4"
Opening: 6"
Height 8"
L x W: 7" x 7"
Price:Regular price $26.00 USD
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Square Roof Curb for 4" Diameter Vent
Square Roof Curb for 4" Diameter Vent
Model No: SRC-4-H12
Fits Vent Size: 4"
Opening: 6"
Height 12"
L x W: 7" x 7"
Price:Regular price $34.00 USD
Regular priceUnit price per
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For 5" Dia. Vent or Fan
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Square Roof Curb for 5" Diameter Vent
Square Roof Curb for 5" Diameter Vent
Model No: SRC-5-H6
Fits Vent Size: 5"
Opening: 7"
Height 6"
L x W: 8" x 8"
Price:Regular price $28.00 USD
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Square Roof Curb for 5" Diameter Vent
Square Roof Curb for 5" Diameter Vent
Model No: SRC-5-H8
Fits Vent Size: 5"
Opening: 7"
Height 8"
L x W: 8" x 8"
Price:Regular price $30.00 USD
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Square Roof Curb for 5" Diameter Vent
Square Roof Curb for 5" Diameter Vent
Model No: SRC-5-H12
Fits Vent Size: 5"
Opening: 7"
Height 12"
L x W: 8" x 8"
Price:Regular price $38.00 USD
Regular priceUnit price per
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For 6" Dia. Vent or Fan
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Square Roof Curb for 6" Diameter Vent
Square Roof Curb for 6" Diameter Vent
Model No: SRC-6-H6
Fits Vent Size: 6"
Opening: 8"
Height 6"
L x W: 9" x 9"
Price:Regular price $32.00 USD
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Square Roof Curb for 6" Diameter Vent
Square Roof Curb for 6" Diameter Vent
Model No: SRC-6-H8
Fits Vent Size: 6"
Opening: 8"
Height 8"
L x W: 9" x 9"
Price:Regular price $34.00 USD
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Square Roof Curb for 6" Diameter Vent
Square Roof Curb for 6" Diameter Vent
Model No: SRC-6-H12
Fits Vent Size: 6"
Opening: 8"
Height 12"
L x W: 9" x 9"
Price:Regular price $42.00 USD
Regular priceUnit price per
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For 7" Dia. Vent or Fan
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Square Roof Curb for 7" Diameter Vent
Square Roof Curb for 7" Diameter Vent
Model No: SRC-7-H6
Fits Vent Size: 7"
Opening: 9"
Height 6"
L x W: 10" x 10"
Price:Regular price $36.00 USD
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Square Roof Curb for 7" Diameter Vent
Square Roof Curb for 7" Diameter Vent
Model No: SRC-7-H8
Fits Vent Size: 7"
Opening: 9"
Height 8"
L x W: 10" x 10"
Price:Regular price $38.00 USD
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Square Roof Curb for 7" Diameter Vent
Square Roof Curb for 7" Diameter Vent
Model No: SRC-7-H12
Fits Vent Size: 7"
Opening: 9"
Height 12"
L x W: 10" x 10"
Price:Regular price $46.00 USD
Regular priceUnit price per
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For 8" Dia. Vent or Fan
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Square Roof Curb for 8" Diameter Vent
Square Roof Curb for 8" Diameter Vent
Model No: SRC-8-H6
Fits Vent Size: 8"
Opening: 10"
Height 6"
L x W: 11" x 11"
Price:Regular price $39.00 USD
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Square Roof Curb for 8" Diameter Vent
Square Roof Curb for 8" Diameter Vent
Model No: SRC-8-H8
Fits Vent Size: 8"
Opening: 10"
Height 8"
L x W: 11" x 11"
Price:Regular price $42.00 USD
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Square Roof Curb for 8" Diameter Vent
Square Roof Curb for 8" Diameter Vent
Model No: SRC-8-H12
Fits Vent Size: 8"
Opening: 10"
Height 12"
L x W: 11" x 11"
Price:Regular price $51.00 USD
Regular priceUnit price per
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For 9" Dia. Vent or Fan
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Square Roof Curb for 9" Diameter Vent
Square Roof Curb for 9" Diameter Vent
Model No: SRC-9-H6
Fits Vent Size: 9"
Opening: 11"
Height 6"
L x W: 12" x 12"
Price:Regular price $46.00 USD
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Square Roof Curb for 9" Diameter Vent
Square Roof Curb for 9" Diameter Vent
Model No: SRC-9-H8
Fits Vent Size: 9"
Opening: 11"
Height 8"
L x W: 12" x 12"
Price:Regular price $49.00 USD
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Square Roof Curb for 9" Diameter Vent
Square Roof Curb for 9" Diameter Vent
Model No: SRC-9-H12
Fits Vent Size: 9"
Opening: 11"
Height 12"
L x W: 12" x 12"
Price:Regular price $56.00 USD
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For 10" Dia. Vent or Fan
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Square Roof Curb for 10" Diameter Vent
Square Roof Curb for 10" Diameter Vent
Model No: SRC-10-H6
Fits Vent Size: 10"
Opening: 12"
Height 6"
L x W: 13" x 13"
Price:Regular price $52.00 USD
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Square Roof Curb for 10" Diameter Vent
Square Roof Curb for 10" Diameter Vent
Model No: SRC-10-H8
Fits Vent Size: 10"
Opening: 12"
Height 8"
L x W: 13" x 13"
Price:Regular price $55.00 USD
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Square Roof Curb for 10" Diameter Vent
Square Roof Curb for 10" Diameter Vent
Model No: SRC-10-H12
Fits Vent Size: 10"
Opening: 12"
Height 12"
L x W: 13" x 13"
Price:Regular price $62.00 USD
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For 12" Dia. Vent or Fan
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Square Roof Curb for 12" Diameter Vent
Square Roof Curb for 12" Diameter Vent
Model No: SRC-12-H6
Fits Vent Size: 12"
Opening: 13"
Height 6"
L x W: 15" x 15"
Price:Regular price $59.00 USD
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Square Roof Curb for 12" Diameter Vent
Square Roof Curb for 12" Diameter Vent
Model No: SRC-12-H8
Fits Vent Size: 12"
Opening: 13"
Height 8"
L x W: 15" x 15"
Price:Regular price $65.00 USD
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Square Roof Curb for 12" Diameter Vent
Square Roof Curb for 12" Diameter Vent
Model No: SRC-12-H12
Fits Vent Size: 12"
Opening: 13"
Height 12"
L x W: 15" x 15"
Price:Regular price $78.00 USD
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Square Roof Curb for 12" Diameter Vent
Square Roof Curb for 12" Diameter Vent
Model No: SRC-12-H18
Fits Vent Size: 12"
Opening: 13"
Height 18"
L x W: 15" x 15"
Price:Regular price $130.00 USD
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For 14" Dia. Vent or Fan
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Square Roof Curb for 14" Diameter Vent
Square Roof Curb for 14" Diameter Vent
Model No: SRC-14-H6
Fits Vent Size: 14"
Opening: 15"
Height 6"
L x W: 17" x 17"
Price:Regular price $65.00 USD
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Square Roof Curb for 14" Diameter Vent
Square Roof Curb for 14" Diameter Vent
Model No: SRC-14-H8
Fits Vent Size: 14"
Opening: 15"
Height 8"
L x W: 17" x 17"
Price:Regular price $78.00 USD
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Square Roof Curb for 14" Diameter Vent
Square Roof Curb for 14" Diameter Vent
Model No: SRC-14-H12
Fits Vent Size: 14"
Opening: 15"
Height 12"
L x W: 17" x 17"
Price:Regular price $91.00 USD
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Square Roof Curb for 14" Diameter Vent
Square Roof Curb for 14" Diameter Vent
Model No: SRC-14-H18
Fits Vent Size: 14"
Opening: 15"
Height 18"
L x W: 17" x 17"
Price:Regular price $143.00 USD
Regular priceUnit price per
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For 16" Dia. Vent or Fan
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Square Roof Curb for 16" Diameter Vent
Square Roof Curb for 16" Diameter Vent
Model No: SRC-16-H6
Fits Vent Size: 16"
Opening: 17"
Height 6"
L x W: 19" x 19"
Price:Regular price $72.00 USD
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Square Roof Curb for 16" Diameter Vent
Square Roof Curb for 16" Diameter Vent
Model No: SRC-16-H8
Fits Vent Size: 16"
Opening: 17"
Height 8"
L x W: 19" x 19"
Price:Regular price $91.00 USD
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Square Roof Curb for 16" Diameter Vent
Square Roof Curb for 16" Diameter Vent
Model No: SRC-16-H12
Fits Vent Size: 16"
Opening: 17"
Height 12"
L x W: 19" x 19"
Price:Regular price $104.00 USD
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Square Roof Curb for 16" Diameter Vent
Square Roof Curb for 16" Diameter Vent
Model No: SRC-16-H18
Fits Vent Size: 16"
Opening: 17"
Height 18"
L x W: 19" x 19"
Price:Regular price $163.00 USD
Regular priceUnit price per
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For 18" Dia. Vent or Fan
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Square Roof Curb for 18" Diameter Vent
Square Roof Curb for 18" Diameter Vent
Model No: SRC-18-H6
Fits Vent Size: 18"
Opening: 19"
Height 6"
L x W: 21" x 21"
Price:Regular price $78.00 USD
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Square Roof Curb for 18" Diameter Vent
Square Roof Curb for 18" Diameter Vent
Model No: SRC-18-H8
Fits Vent Size: 18"
Opening: 19"
Height 8"
L x W: 21" x 21"
Price:Regular price $104.00 USD
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Square Roof Curb for 18" Diameter Vent
Square Roof Curb for 18" Diameter Vent
Model No: SRC-18-H12
Fits Vent Size: 18"
Opening: 19"
Height 12"
L x W: 21" x 21"
Price:Regular price $117.00 USD
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Square Roof Curb for 18" Diameter Vent
Square Roof Curb for 18" Diameter Vent
Model No: SRC-18-H18
Fits Vent Size: 18"
Opening: 19"
Height 18"
L x W: 21" x 21"
Price:Regular price $182.00 USD
Regular priceUnit price per
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For 20" Dia. Vent or Fan
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Square Roof Curb for 20" Diameter Vent
Square Roof Curb for 20" Diameter Vent
Model No: SRC-20-H6
Fits Vent Size: 20"
Opening: 21"
Height 6"
L x W: 23" x 23"
Price:Regular price $91.00 USD
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Square Roof Curb for 20" Diameter Vent
Square Roof Curb for 20" Diameter Vent
Model No: SRC-20-H8
Fits Vent Size: 20"
Opening: 21"
Height 8"
L x W: 23" x 23"
Price:Regular price $117.00 USD
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Square Roof Curb for 20" Diameter Vent
Square Roof Curb for 20" Diameter Vent
Model No: SRC-20-H12
Fits Vent Size: 20"
Opening: 21"
Height 12"
L x W: 23" x 23"
Price:Regular price $137.00 USD
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Square Roof Curb for 20" Diameter Vent
Square Roof Curb for 20" Diameter Vent
Model No: SRC-20-H18
Fits Vent Size: 20"
Opening: 21"
Height 18"
L x W: 23" x 23"
Price:Regular price $202.00 USD
Regular priceUnit price per
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For 24" Dia. Vent or Fan
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Square Roof Curb for 24" Diameter Vent
Square Roof Curb for 24" Diameter Vent
Model No: SRC-24-H6
Fits Vent Size: 24"
Opening: 25"
Height 6"
L x W: 27" x 27"
Price:Regular price $104.00 USD
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Square Roof Curb for 24" Diameter Vent
Square Roof Curb for 24" Diameter Vent
Model No: SRC-24-H8
Fits Vent Size: 24"
Opening: 25"
Height 8"
L x W: 27" x 27"
Price:Regular price $130.00 USD
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Square Roof Curb for 24" Diameter Vent
Square Roof Curb for 24" Diameter Vent
Model No: SRC-24-H12
Fits Vent Size: 24"
Opening: 25"
Height 12"
L x W: 27" x 27"
Price:Regular price $169.00 USD
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Square Roof Curb for 24" Diameter Vent
Square Roof Curb for 24" Diameter Vent
Model No: SRC-24-H18
Fits Vent Size: 24"
Opening: 25"
Height 18"
L x W: 27" x 27"
Price:Regular price $228.00 USD
Regular priceUnit price per
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For 30" Dia. Vent or Fan
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Square Roof Curb for 30" Diameter Vent
Square Roof Curb for 30" Diameter Vent
Model No: SRC-30-H8
Fits Vent Size: 30"
Opening: 31"
Height 8"
L x W: 33" x 33"
Price:Regular price $156.00 USD
Regular priceUnit price per -
Square Roof Curb for 30" Diameter Vent
Square Roof Curb for 30" Diameter Vent
Model No: SRC-30-H12
Fits Vent Size: 30"
Opening: 31"
Height 12"
L x W: 33" x 33"
Price:Regular price $202.00 USD
Regular priceUnit price per -
Square Roof Curb for 30" Diameter Vent
Square Roof Curb for 30" Diameter Vent
Model No: SRC-30-H18
Fits Vent Size: 30"
Opening: 31"
Height 18"
L x W: 33" x 33"
Price:Regular price $260.00 USD
Regular priceUnit price per
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For 36" Dia. Vent or Fan
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Square Roof Curb for 36" Diameter Vent
Square Roof Curb for 36" Diameter Vent
Model No: SRC-36-H8
Fits Vent Size: 36"
Opening: 37"
Height 8"
L x W: 39" x 39"
Price:Regular price $182.00 USD
Regular priceUnit price per -
Square Roof Curb for 36" Diameter Vent
Square Roof Curb for 36" Diameter Vent
Model No: SRC-36-H12
Fits Vent Size: 36"
Opening: 37"
Height 12"
L x W: 39" x 39"
Price:Regular price $234.00 USD
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Square Roof Curb for 36" Diameter Vent
Square Roof Curb for 36" Diameter Vent
Model No: SRC-36-H18
Fits Vent Size: 36"
Opening: 37"
Height 18"
L x W: 39" x 39"
Price:Regular price $325.00 USD
Regular priceUnit price per
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For 42" Dia. Vent or Fan
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Square Roof Curb for 42" Diameter Vent
Square Roof Curb for 42" Diameter Vent
Model No: SRC-42-H8
Fits Vent Size: 42"
Opening: 43"
Height 8"
L x W: 45" x 45"
Price:Regular price $215.00 USD
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Square Roof Curb for 42" Diameter Vent
Square Roof Curb for 42" Diameter Vent
Model No: SRC-42-H12
Fits Vent Size: 42"
Opening: 43"
Height 12"
L x W: 45" x 45"
Price:Regular price $325.00 USD
Regular priceUnit price per -
Square Roof Curb for 42" Diameter Vent
Square Roof Curb for 42" Diameter Vent
Model No: SRC-42-H18
Fits Vent Size: 42"
Opening: 43"
Height 18"
L x W: 45" x 45"
Price:Regular price $390.00 USD
Regular priceUnit price per
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For 48" Dia. Vent or Fan
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Square Roof Curb for 48" Diameter Vent
Square Roof Curb for 48" Diameter Vent
Model No: SRC-48-H8
Fits Vent Size: 48"
Opening: 49"
Height 8"
L x W: 51" x 51"
Price:Regular price $260.00 USD
Regular priceUnit price per -
Square Roof Curb for 48" Diameter Vent
Square Roof Curb for 48" Diameter Vent
Model No: SRC-48-H12
Fits Vent Size: 48"
Opening: 49"
Height 12"
L x W: 51" x 51"
Price:Regular price $390.00 USD
Regular priceUnit price per -
Square Roof Curb for 48" Diameter Vent
Square Roof Curb for 48" Diameter Vent
Model No: SRC-48-H18
Fits Vent Size: 48"
Opening: 49"
Height 18"
L x W: 51" x 51"
Price:Regular price $455.00 USD
Regular priceUnit price per
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