Metal roof penetrations
Standing seam, trapezoidal and corrugated. The base has to form to the profile without breaking the pan, and the cone has to hold at the pitch the roof runs at.
Which profile are you on?
The profile decides the base. Pitch and pipe size then decide the cone.
Standing seam
Soft aluminium base forms between ribs without piercing the seam.
Trapezoidal
Deep-profile base spans wide ribs and seals on the flat.
Corrugated
Standard base follows the corrugation with a sealant bead at the crown.
Families that fit a metal roof
Dektite Original
The standard EPDM cone for pitched metal roofs.
1/4"–33"|EPDM|240°F
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Dektite Premium
Silicone cone for flue and high-temperature penetrations.
1/4"–13"|Silicone|400°F
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Dektite Retrofit Original
Split cone and base for pipes that cannot be lifted.
1/2"–9"|EPDM|240°F
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Detailing notes
01Fasten on 1 1/4" centers with Dekbond sealing washers; do not overtighten the flange.
02Cut the cone one step below the pipe OD so the seal stretches onto the pipe.
03Above 240°F continuous, move to Dektite Premium silicone.