Protect your roof and invite daylight with the VELUX Aluminum Roof Window Flashing Kit. Made from durable aluminum, it sheds water without relying on sealants that can break down over time—so you can enjoy natural light and fresh air without leaks.
Note: Ordering a VELUX flashing kit with your roof window is required because cladding components are included with the VELUX roof window flashing kit. If you live in an area where ice and snow accumulate on the roof, be sure to order a roll of ZOZ 216 adhesive underlayment to give your roof window added protection against extreme weather conditions.
Key Features & Design
Built to last and designed for straightforward installation, this aluminum flashing kit delivers reliable water shedding and roof integrity without the maintenance headaches of sealants. It’s compatible with a wide range of VELUX roof window families and ships with the necessary cladding components for a cohesive, weather-ready setup.
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CK04 — Rough Opening: 22.13 in x 39 in; Roof Pitch: 15–85°; Works with: GPU CK04 CK06
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CK06 — Rough Opening: 22.13 in x 46.88 in; Roof Pitch: 15–85°; Works with: GPU CK06, GXU
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FK06 — Rough Opening: 26.5 in x 46.88 in; Roof Pitch: 15–85°; Works with: GXU FK06
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MK04 — Rough Opening: 31.25 in x 39 in; Roof Pitch: 15–85°; Works with: GPU MK04 MK06
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MK06 — Rough Opening: 31.25 in x 46.88 in; Roof Pitch: 15–85°; Works with: GPU MK06 MK08
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MK08 — Rough Opening: 31.25 in x 55.5 in; Roof Pitch: 15–85°; Works with: GPU MK08 MK19
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MK19 — Rough Opening: 33.06 in x 101 in; Roof Pitch: 35–53°; Works with: GDL MK19 PK10
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PK10 — Rough Opening: 37.63 in x 63.5 in; Roof Pitch: 15–85°; Works with: GPU PK10 PK19
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PK19 — Rough Opening: 39.38 in x 101 in; Roof Pitch: 35–53°; Works with: GDL PK19
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SK06 — Rough Opening: 45.38 in x 46.88 in; Roof Pitch: 15–85°; Works with: GPU SK06
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UK08 — Rough Opening: 53.25 in x 55.5 in; Roof Pitch: 15–85°; Works with: GPU UK08
Ready for weather-smart performance with a clean, no-fuss installation. The VELUX Aluminum Roof Window Flashing Kit keeps the focus on the light, while your roof stays protected—no gimmicks, just solid engineering.
| Size Code |
Rough Opening |
Roof Pitch |
Works with |
| CK04 |
22.13 In x 39 In |
15-85° |
GPU CK04 |
| CK06 |
22.13 In x 46.88 In |
15-85° |
GPU CK06, GXU CK06 |
| FK06 |
26.5 In x 46.88 In |
15-85° |
GXU FK06 |
| MK04 |
31.25 In x 39 In |
15-85° |
GPU MK04 |
| MK06 |
31.25 In x 46.88 In |
15-85° |
GPU MK06 |
| MK08 |
31.25 In x 55.5 In |
15-85° |
GPU MK08 |
| MK19 |
33.06 In x 101 In |
35-53° |
GDL MK19 |
| PK10 |
37.63 In x 63.5 In |
15-85° |
GPU PK10 |
| PK19 |
39.38 In x 101 In |
35-53° |
GDL PK19 |
| SK06 |
45.38 In x 46.88 In |
15-85° |
GPU SK06 |
| UK08 |
53.25 In x 55.5 In |
15-85° |
GPU UK08 |
