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Dektite Roof Penetration Flashings
Red Dektite - No. 4 is a flexible metal-roof penetration flashing for round pipes and flues measuring 75 to 160 mm. Select by actual outside diameter, not nominal pipe size.
- Dektite Option
- No. 4
- Roof Pitch
- 0° to 40°
- Pipe outside diameter
- 75 to 160 mm(3 to 6 1/4 in)
- Material
- High-temperature silicone, -50°C to 200°C continuous
- Category
- Accessories General Accessories
- Pipe outside diameter: 75 to 160 mm
- High-temperature silicone, -50°C to 200°C continuous
- Roof pitch range: 0° to 40°
- Flexible reinforced base forms to profiled metal roofing
- Marked cone guides trimming to the measured penetration
SKU CSA-283D90165513
Ex GST. Freight calculated at checkout.
Overview
Red Dektite - No. 4 seals round pipes and flues where they pass through profiled metal roofing. The flexible reinforced base forms to corrugated and ribbed roof sheets, while the cone is trimmed at the marked diameter to make close contact around the penetration.
The No. 4 mark is a product size code, not a pipe measurement. This option covers pipe outside diameter from 75 to 160 mm (3 to 6 1/4 in). Measure the outside of the installed pipe, including any insulation or outer casing that passes through the flashing, before choosing a size.
High-temperature silicone is rated for -50°C to 200°C continuous. This option is listed for roof pitches from 0° to 40°. Use the manufacturer installation method, approved sealant and suitable roof fasteners. Installation by a qualified roof plumber is recommended because poor trimming or fixing can cause water entry.
Choose the right Dektite size
The number is a product code, not the pipe diameter. Measure the outside diameter of the pipe, flue or post where it passes through the roof, then select that size from the Size menu.
01
Measure outside diameter
Measure the full outside width at the roofline. Include insulation or casing that must pass through the boot.
02
Match the stated range
Choose the smallest option whose range contains the measurement and whose base can form over the roof ribs.
03
Choose the material
Use standard EPDM for normal roof temperatures, red silicone for hot flues, and square for square posts.
Sizing reference: DEKS Dektite manufacturer chart. Confirm the measured penetration, roof pitch and service temperature before ordering.
Technical Specifications
| Dektite size | No. 4 |
|---|---|
| Pipe outside diameter | 75 to 160 mm |
| Imperial size range | 3 to 6 1/4 in |
| Material | High-temperature silicone |
| Continuous temperature range | -50°C to 200°C continuous |
| Roof pitch range | 0° to 40° |
| Selection measurement | Actual outside diameter, including any casing through the flashing |
| Unit of measure | Metric |
| CSA SKU | CSA-283D90165513 |
Compliance
Standards & Certifications
DEKS sizing reference
The displayed 75 to 160 mm range comes from the manufacturer chart for this Dektite size. Always check the actual outside diameter before ordering.
DEKS Dektite sizing chart
UV and fire test information
DEKS lists UV testing and AS 1530.8.1 certification for the Dektite range. Check the selected material and project fire requirements before specification.
AS 1530.8.1
Datasheets, Guides & Certificates
Manufacturer documentation for specification and compliance. Links open the original source documents.
Use Cases
- Plumbing vent pipes
- Hot and cold flues
- HVAC and exhaust penetrations
- Electrical conduits
- Metal-roof repair work
Applicable Standards
- AS 1530.8.1
FAQ
Red Dektite - No. 4 - Frequently Asked Questions
What pipe size does Dektite No. 4 fit?
Red Dektite - No. 4 covers pipe outside diameter from 75 to 160 mm, equivalent to 3 to 6 1/4 in. Measure the pipe outside diameter at the roofline. Do not select from the nominal bore or trade name because that measurement may be different.
What does the Dektite number mean?
The No. 4 is the manufacturer size code. It is not 4 mm or 4 inches. Use the pipe range shown beside each option in the size table.
Should I choose standard EPDM or red silicone?
Standard EPDM suits most cold and moderate-temperature roof penetrations and is rated from -50°C to 115°C continuously. Red silicone is intended for hotter flues and is rated from -50°C to 200°C continuously. Confirm the temperature at the roofline, not only the appliance outlet temperature.
How is a Dektite fitted to a metal roof?
Mark and cut the cone below the measured pipe diameter, slide it over the penetration, form the base to the roof profile, then seal and fasten it using the manufacturer spacing. A qualified roof plumber should complete the work where weatherproofing or fire separation is regulated.
Complete the order
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