Product Brochure

Python Steep
Slope Ventilation
System
Weather-Tite™
Rolled Ridge Vent
3-IN-1 FlexFit
Ridge Vent
65 Slant
Back Vent
150 Round Vent
Value drives everything we do. That’s why we developed the Python Steep Slope
Ventilation Division. This comprehensive line of products offers easy installation,
remarkable building ventilation, lower utility costs, extended shingle and roof deck life,
extreme durability, and outstanding warranties. Get more quality, more performance,
and more value ....from Python™
800.800.8590 / MarcoIndustries.com
Specs
Net Free Area: 65 Square Inches of Net Free Area
Dimensions: Width 17" x Length 22" x Height 4.33"
Material: No-break polypropylene
Codes & Standards: TDI, FL Building Code
Passed: Florida TAS 100 (A) Wind & Water 110 mph
Colors: Black, Brown, Weatherwood
Roof Pitch: suitable for any pitch from 2/12 to 16/12
Patents: US Pat No. 8,181,403, US Pat No. D629,093
Vent Weight: 2.065 lbs. per piece
Pack Unit of Measurement: 6 per carton
4 Side Crickets: Sheds water around the throat of the
vent, making it virtually leak proof
Construction Detail: High Wind Deflector prevents
wind driven rain from entering vent
Durability: Will not dent or rust, UL 2218: Class 4
Impact Resistance
Arrow Shaped Locks: Prevent cap blow offs
Easy Install
1. Locate the roof vents toward the rear or side of the house
spaced evenly over the width of the roof.
2. Mark the location of all roof vents before cutting holes.
Center the holes between the rafters down two feet (24")
from the peak of the roof. When installed as an intake vent
please position vent at two feet (24") from the eave or edge
of the roof. Ensure that attic insulation does not block intake
vent.
3. Holes should be cut 11" High x 10" Wide. The Python™
65 Slant Back Vent box has a template for error proof
installation. Using the template mark the outline for the hole
on the roof. The hole in the roof should never be larger than
the hole at the bottom of the vent.
4. Shingle up until shingles cover the bottom of the hole.
Cut the excess shingles away. Because shingles are part of
a porous system applying an approved sealant around the
edge of the hole is required.
5. The top of the Python™ 65 Slant Back Vent has a slanted
peak. Ensure that the vents are installed with the peak at the
UP position.
6. Secure the vent base with a minimum of 8 galvanized
nails. Nails should be a minimum of 1¼" long and should
penetrate the vent, shingle, and decking. Secure a nail in
each corner of the vent flashing and along the middle of each
side of the vent.
7. For proper sealing use a plastic friendly roofing sealant. All
nails to receive a dab of sealant.
8. Shingle up and around the vent ensuring that the shingles
butt up against the throat of the vent.
9. Pre-cut the top shingle to fit around the slant of the
vent and nail in place. Shingle up as normal to complete
installation.
See our installation instructions online at MarcoIndustries.com