Publicité
Les langues disponibles
Les langues disponibles
Installation Instructions
CertainTeed Intake Vent is designed for asphalt shingled roofs with
minimum 3/12 pitch. It can now be installed on roofs with or without overhangs
and it can be placed up the roof with open soffit construction. When properly
installed, CertainTeed Intake 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 deck.
For best results intake ventilation should match or exceed exhaust ventilation net free area.
Important notes before installing:
1. It is recommended that edge flashing be used underneath the Intake Vent to conceal the roof
deck-fascia board intersection.
2. See application instructions for cutting the slot.
3. When installing in cold weather, leave a 1/8" gap between consecutive Intake Vent sections to allow for
thermal expansion.
4. All nails used to pre-fasten the Intake Vent and to install shingles over the Intake Vent should be of
sufficient length to fully penetrate the underside of the roof deck.
5. Avoid nailing starter and first course shingles through the roof deck slot. This area is marked on the top
of the vent.
6. Run the Intake Vent the full length of the eave.
7. Felt (warm weather climates) or CertainTeed's waterproofing WinterGuard® shingle underlayment
(cold weather climates) must be installed on the roof deck beneath the Intake Vent to help protect the
integrity of the deck.
8. Felt (warm weather climates) or CertainTeed's waterproofing WinterGuard shingle underlayment
(cold weather climates) must be installed over top of the Intake Vent and flashed beneath the next
layer to ensure that the water drains from the roof over the top of the Intake Vent.
Note: Slot must be cut through the felt or underlayment for airflow.
Tools required: Hammer, Utility knife, Chalk line, Roofing nails, Tape measure, Circular saw
VENTING SLOTS
NO NAIL LINE
Allow air to ow
into attic through
Above slot to be cut
roof deck slot
in the roof deck
REINFORCED RIBS
For greater stability
and rigidity
NAIL HOLES
Located at
16 and 24
inch centers
NAIL LINE
For starter
INTERNAL
course shingles
BAFFLES
To protect
from
INTERNAL
weather
in ltration
WEATHER FILTER
DRAINAGE SYSTEM
Made of untreated,
Allows weather elements
to drain from vent
unwoven berglass
INTAKE VENT SLOTS
to protect from
Provide 9 sq. in. free vent
weather in ltration
area per linear foot
INTEGRATED END PLUG
DRIP EDGE
REINFORCED NAIL BOSSES
Seals the end
Supports shingles and
Nail holes for pre-fastening vent
aides in water drainage
INSTRUCTIONS FOR CUTTING SLOTS
–––––––– Slot cut
Hip & Gable Roofs
Roofs with Valleys
Cut 3/4" slot 5" up from drip edge.
Cut 3/4" slot 5" up from drip edge.
Terminate slot 6" inside of end
Terminate slot 6" inside of end walls and
walls and 12" from hip ridges.
at least 12" from valleys.
NOTE: It is the installer's responsibility to ensure that there is
a downward slope across all shingle surfaces after Intake Vent
installation. This is of particular note when using multi-layered
or architectural shingles.
INSTALLATION INSTRUCTIONS
Step 1 – Remove all roofing materials
Step 2 – Install either felt (warm weather
for reroof applications. Install
climates) or WinterGuard waterproofing shingle
edge flashing and gutter straps as
underlayment (cold weather climates) onto
necessary. Measure 5" from edge
the bare deck 10-1/2" from the edge of roof up
flashing bend to mark lower slot line.
the slope. Cut slot with circular saw. Warning:
Measure 3/4" further up to mark
Adjust depth of blade to avoid cutting rafters
upper slot line.
or trusses. Refer to drawings above for slot
dimensions. Remove debris from slot.
Step 4 – Use utility knife to cut final
Step 5 – Install either felt
section to length. Integrated end
(warm weather climates) or WinterGuard
plug of final section should be flush
waterproofing shingle underlayment (cold
with end of roof. Pre-fasten
weather climates) over The Intake Vent being
final section.
careful to avoid nailing into the roof deck
slot. Using a chalk line, transfer the nail line
(2-5/8" from drip edge) and slot location
(5-3/4" to 7" from drip edge) to the top of the
felt or WinterGuard waterproofing shingle
underlayment.
Vent run
End wall
Chimneys
Cut 3/4" slot 5" up from drip
edge. Terminate slot 12" up from
chimneys that penetrate the roof.
Shingle Course 3
Shingle Course 2
Shingle Course 1
Downward Slope
Downward Slope
Downward Slope
Downward Slope
Step 3 – Making sure the slot is open
from step #2, position the Intake Vent
over venting slots. Make sure that the
lower edge of the venting is aligned with
the edge flashing. Start at end of roof so
that end plug is flush with end. Locating
tabs on underside of the Intake Vent
may assist in positioning over slot. Use
reinforced nail holes to pre-fasten
vent in place.
Step 6 – Install starter and first course
shingles over felt/WinterGuard
waterproofing shingle underlayment-
covered Intake Vent using shingle
manufacturer guidelines for shingle
overhang and nailing requirements.
Nailing patterns may have to deviate
from some shingle installation
instructions to avoid nailing in
slot location.
Publicité
