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Ins Tall aTIo n In sT ruC TIo n s
I n s t a l l a t I o n
I n s t r u c t I o n s
Filtered and unfiltered Includes 1-3/4" nails
CertainTeed Rolled Vent fits roofs with 3/12 to 12/12 pitches.
Important notes before installing:
1. When using architectural shingles, caulk between low areas of shingle and external
baffles of vent. Use nails of sufficient length for proper roof deck penetration.
2. When using standard flat 3-tab shingles, it is unnecessary to caulk between
the vent and the shingles.
3. Before fastening vent, make sure filter is secured between shingles
and the certainteed rolled ridge Vent.
4. When installing vent in cold weather, leave 1/8" gap between vent ends to
allow for expansion in hot weather.
5. see instructions below for cutting slot.
6. For best appearance, run CertainTeed Rolled Ridge Vent from end to end to give
the roof a more even, attractive appearance.
7. Special care should be taken when using a nail gun to install cap shingles over CertainTeed Rolled Ridge Vent.
It is important that the roofing nails penetrate the roof deck without compressing CertainTeed Rolled Ridge Vent.
Nails driven too deep will dimple or distort the cap shingles. Nails not driven deep enough may allow the ridge
vent fasteners to back out of the roof deck and could result in blow-offs.
8. All nails must penetrate the underside of the roof deck.
Tools required:
Hammer, Utility knife, Chalk line, Roofing nails, Tape measure, Circular saw
INsTRucTIONs fOR cuTTINg slOTs
- - - - - - - Indicates slot width
–––––––– Indicates vent run
Hip and gable Roofs
"L" and "T" Shaped Roofs
Cut slot 3/4" on both sides of ridge centerline
Cut slot as per Figure 1 and run Ridge Vent across
or from ridge board and to within 6"
long ridge. On short ridge, cut slot to within 12"
of end wall or hip intersection.
of junction point and run Ridge Vent from end
of roof to butt against crossing ridge Vent.
End wall
Slot width
6"
6" from end of
wall to slot
6" from end of
End wall
wall to slot
End wall
Hip end
Figure 1
Gable end
Ridges with
standard Truss
Old Roofs
Remove the cap shingles from all ridges.
Select the proper width openings (3/4" on
each side of the pole along ridges with
ridge poles; -1/2" max along ridges with
standard trusses) and mark with a chalk
line. Saw through sheathing only, avoiding
nails with saw blade.
— — — — Indicates end wall
Chimneys
Cut slots to within 12" of chimney.
Run Ridge Vent from end of roof to butt
against chimney.
6" from
end of wall
12"
to slot
12"
Run rolled ridge
vent to end of ridge
Run rolled ridge
vent to end of ridge
End wall
Figure 2
Ridges with
Ridge Pole
New Roofs
Leave or cut the opening no wider than
3/4" on each side of the pole along ridges
with ridge poles; 1-1/2" max along ridges
with standard trusses.
I n s Tall aTI o n I n sTruCTI o ns
I n s t a l l a t I o n
I n s t a l l a t I o n
Filtered and unfiltered Includes 1-3/4" nails
Filtered and unfiltered Includes 1-3/4" nails
When properly installed,
unFIltErED
certainTeed Rolled Ridge Vent will:
• Help prevent the premature deterioration of
shingles and other roofing materials caused by
inadequate ventilation.
• Meet typical roof shingle warranty ventilation
requirements.
• Help prevent attic heat build-up and ice dams by
continuously moving air along underside of roof.
For best results install adequate intake vents
certainteed rolled ridge Vent is designed to
FIltErED
exhaust moisture-laden air from the attic.To achieve
optimum ventilation efficiency, all existing roof vents,
turbine vents and gable vents should be removed
or plugged. Intake ventilation must be installed at
the soffit or eave to provide the necessary intake
ventilation for optimum performance.
Step 1 – On existing roofs, remove cap shingles.
Mark slot width at both ends of ridge. Use slot guides
imprinted on vent and refer to drawings on the other
12"
side. Snap chalk line on both sides of ridge.
Figure 3
Step 4 – Use utility knife to cut final section to
length. End of final section should be flush with end
of roof, being sure the built-in end plug is exposed.
For ridge lengths shorter than the product, cut
product to length. Then cut at nearest, correctly
oriented end plug. Reverse this short section to
have end plug flush with end of roof.
I n s t r u c t I o n s
I n s t r u c t I o n s
INsTallaTION INsTRucTIONs
Step 2 – Cut slot (plumb cut, if possible). Note:
Step 3 – Roll out and center vent over slot.
Adjust depth of blade to avoid cutting rafters or
End should be flush with end of roof. Make sure
trusses. Refer to drawings for slot dimensions.
vent's support walls sit flat on the roof, and that
Remove debris from slot.
the filter for CertainTeed Rolled Ridge Vent
Filtered is secure between shingles and vent.
Step 5 – Nail cap shingles in place using roofing
nails long enough to penetrate the underside of
the roof.
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