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Products
Ventilation
Metal Roofs
LP2 Ridge Vent
FlexPro™ Profile Venting Material
Flex-O-Vent™ Universal Venting Material
Shingle Roofs
Python Rolled Ridge Vent
3-in-1 FlexFit™ Vent
Weather-Tite™ 3-in-1 FlexFit™ Vent
65 Slant Back Vent
150 Round Vent
50 Square Vent
Shingle Gooseneck Vent
Shingle Off Ridge Vent
Weather-Tite™ 60 Square Vent
Tile Roofs
Tile Gooseneck Vent
Tile Off Ridge Vent
Universal Tile Ridge Vent
Closure
Closure-Foam™
AngleKut™
Flashing
Universal RoofBoot™ Round Flexible Sleeve
Standard RoofBoot™ Square Flexible Sleeve
Specialty Boots
Box Gutter Expansion Joint
Valley Cap
Sealants
Mastix™
X-Seal™
Weather-Tite™ Metal Roof Sealant
Underlayment
HydraShell™ Premium
HydraShell™ Supreme
HydraShell™ MAX
HydraShell™ Premium SA
HydraShell™ Supreme SA
Accessories
RE2®
Resources
Ventilation Calculator
Why Should You Ventilate?
Roofing FAQ
Technical Tools
Installation Questions
About Us
Who We Are
Lab Testing and Certification
Credit and Freight
Personnel and Contacts
Careers
Products
Ventilation
Metal Roofs
LP2 Ridge Vent
FlexPro™ Profile Venting Material
Flex-O-Vent™ Universal Venting Material
Shingle Roofs
Python Rolled Ridge Vent
3-in-1 FlexFit™ Vent
Weather-Tite™ 3-in-1 FlexFit™ Vent
65 Slant Back Vent
150 Round Vent
50 Square Vent
Shingle Gooseneck Vent
Shingle Off Ridge Vent
Weather-Tite™ 60 Square Vent
Tile Roofs
Tile Gooseneck Vent
Tile Off Ridge Vent
Universal Tile Ridge Vent
Closure
Closure-Foam™
AngleKut™
Flashing
Universal RoofBoot™ Round Flexible Sleeve
Standard RoofBoot™ Square Flexible Sleeve
Specialty Boots
Box Gutter Expansion Joint
Valley Cap
Sealants
Mastix™
X-Seal™
Weather-Tite™ Metal Roof Sealant
Underlayment
HydraShell™ Premium
HydraShell™ Supreme
HydraShell™ MAX
HydraShell™ Premium SA
HydraShell™ Supreme SA
Accessories
RE2®
Resources
Ventilation Calculator
Why Should You Ventilate?
Roofing FAQ
Technical Tools
Installation Questions
About Us
Who We Are
Lab Testing and Certification
Credit and Freight
Personnel and Contacts
Careers
Find A Distributor
Catalog
Search
Ventilation Calculator
Ventilation Calculator
Step 1 - Building Information
Enter Attic Width in Ft.
Enter Attic Length in Ft.
Attic Size in Sq. Ft. to Ventilate Calculated
Step 2 - Requirements
Required Exhaust Rule
NFA 1/300
NFA 1/150
Required Ventilation in Sq. In.
Required Ridge Exhaust - Sq. In.
Required Intake Sq. In. - All Soffits Combined
Python Rolled Ridge Vent (Multiple Sizes)
Ft Per Roll for Each Product
20
50
PY-3000-50N
Size
NFA
Lineal Ft. Required
# of Rolls
PY-6000-50N
Size
NFA
Lineal Ft. Required
# of Rolls
PY-3480-20N
Size
NFA
Lineal Ft. Required
# of Rolls
PY-3410-20N
Size
NFA
Lineal Ft. Required
# of Rolls
PY-3475-20N
Size
NFA
Lineal Ft. Required
# of Rolls
PY-3410-50N
Size
NFA
Lineal Ft. Required
# of Rolls
FlexFit 3-in-1
Size
NFA
# of Vents
Weather-Tite FlexFit 3-in-1
Size
NFA
# of Vents
150 Round Vent
Size
NFA
# of Vents
65 Slant Back Vent
Size
NFA
# of Vents
Weather-Tite 60 Square Vent
Size
NFA
# of Vents
50 Square Vent
Size
NFA
# of Vents
Universal Tile Ridge Vent
Size
NFA
# of Vents
Shingle Off Ridge Vent
Size
NFA
# of Vents
Tile Off Ridge Vent
Size
NFA
# of Vents
Products
Ventilation
Metal Roofs
LP2 Ridge Vent
FlexPro™ Profile Venting Material
Flex-O-Vent™ Universal Venting Material
Shingle Roofs
Python Rolled Ridge Vent
3-in-1 FlexFit™ Vent
Weather-Tite™ 3-in-1 FlexFit™ Vent
65 Slant Back Vent
150 Round Vent
50 Square Vent
Shingle Gooseneck Vent
Shingle Off Ridge Vent
Weather-Tite™ 60 Square Vent
Tile Roofs
Tile Gooseneck Vent
Tile Off Ridge Vent
Universal Tile Ridge Vent
Closure
Closure-Foam™
AngleKut™
Flashing
Universal RoofBoot™ Round Flexible Sleeve
Standard RoofBoot™ Square Flexible Sleeve
Specialty Boots
Box Gutter Expansion Joint
Valley Cap
Sealants
Mastix™
X-Seal™
Weather-Tite™ Metal Roof Sealant
Underlayment
HydraShell™ Premium
HydraShell™ Supreme
HydraShell™ MAX
HydraShell™ Premium SA
HydraShell™ Supreme SA
Accessories
RE2®
Resources
Ventilation Calculator
Why Should You Ventilate?
Roofing FAQ
Technical Tools
Installation Questions
About Us
Who We Are
Lab Testing and Certification
Credit and Freight
Personnel and Contacts
Careers
Find A Distributor
Catalog
Search
