IT Duo Combi

Two windows next to each other, 100-160mm frame distance

The Duo Combi Installation Type is the classic way to combine two VELUX roof windows in a pitched roof.

Installation type - Object Type Description

Speed up your early design process with pre-defined VELUX installation solutions.

Use Installation Types to quickly explore daylight concepts, roof layouts, window sizes, and roof window placements without committing to detailed product specifications too early in the project.

These lightweight BIM objects are specifically developed for concept and schematic design stages. Geometry and product information are intentionally simplified, allowing you to focus on space, daylight, proportions, and overall design intent while maintaining maximum flexibility for later project development.

Switch between different roof window sizes and configurations to identify the solution that best fits your design. Once the project requirements become clearer, refine the selected Installation Type into specific VELUX roof windows with detailed performance data, operation type, glazing, finishes, blinds, shutters, and accessories.

When your project requires detailed geometry and specification-ready product information, continue the design process using CoBIM and the VELUX Revit Add-in.

Why choose Duo Combi?

Choose Duo Combi when you want to create a larger daylight opening while working with the existing roof construction.

In this installation type, the roof windows are installed on either side of a structural roof rafter, which remains between the windows and is typically finished on the interior side with plasterboard or a similar lining solution.

Duo Combi is a well-established and widely used installation principle. It provides a practical and flexible way to increase daylight, views, and ventilation while maintaining the structural logic of the roof construction.

The flexible gutter between the windows allows a frame distance of 100–160 mm, making the solution adaptable to a wide range of common rafter dimensions and pitched roof constructions.

Key Benefits

- Wider daylight opening than a single roof window
- Designed to work with the existing roof construction
- Existing structural rafter retained between the windows
- Flexible 100–160 mm frame distance between windows
- Practical and well-established installation principle
- Enhanced views and stronger connection to the outdoors
- Increased natural ventilation potential
- Factory-engineered installation system
- Faster and simpler installation process
- Consistent detailing and weather performance

Window Code	Width in mm	Height in mm	Effective Daylight Area in m2
2 x CK02	2 x 550 = 1100	778	2 x 0.22 = 0.44
2 x CK04	2 x 550 = 1100	978	2 x 0.29 = 0.58
2 x FK04	2 x 660 = 1320	978	2 x 0.38 = 0.76
2 x FK06	2 x 660 = 1320	1178	2 x 0.47 = 0.94
2 x FK08	2 x 660 = 1320	1398	2 x 0.58 = 1.16
2 x MK04	2 x 780 = 1560	978	2 x 0.47 = 0.94
2 x MK06	2 x 780 = 1560	1178	2 x 0.59 = 1.16
2 x MK08	2 x 780 = 1560	1398	2 x 0.72 = 1.44
2 x MK10	2 x 780 = 1560	1600	2 x 0.85 = 1.47
2 x PK06	2 x 940 = 1880	1178	2 x 0.75 = 1.50
2 x PK08	2 x 940 = 1880	1398	2 x 0.92 = 1.84
2 x SK06	2 x 1140 = 2280	1178	2 x 0.95 = 1.90
2 x SK08	2 x 1140 = 2280	1398	2 x 1.16 = 2.32

Özellikler

Variant content flashing:
- Two top flashing sections with foam gaskets and tile supports
- Two side sections with drainage gutters and foam gaskets
- Four side frame covers
- Two bottom flashing sections with flexible aprons and foam gaskets
- Two bottom frame covers
- One low-lying middle gutter (flexible a-distance from 100-160 mm)
- Two insulation frames BDX
- Two underfelt collars BFX with drainage gutter
Additional installation products needed:
- Vapour barrier collar BBX, 2 x BBX 0000
Variant content BBX 0000
- 1 vapour barrier collar
- 1 roll of tape (width = 60 mm)
- 1 bag with 8 screws (Torx 15)
- 1 installation tool
- Installation instructions

The windows in the installation can be selected according to the functional needs.

Teknik özellikler

Benzersiz ref.IT-duo-combi
Ürün ailesiWindows
Ürün grubuInstallation Types
TipAssembly (Çoklu Nesneler)
Yayınlanma tarihi2026-07-01
Baskı numarası1

Bağlantılar

Kurulum talimatlarıhttps://contenthub.velux.com/api/public/content/product-guide_455057?v=fb436795

İlgili

Ana malzemeCam
İkincil malzemeÇam
Tasarım yeriDanimarka

Sınıflandırma

BIMobject kategorisiPencereler - Çatı Penceresi
IFC sınıflandırmasıPencere
ETIM KoduEC003112
ETIM AdıSkylight
Uniclass 2015 koduSs_30_30_72_73
Uniclass 2015 açıklamasıRoof window systems
CSI MasterFormat 2014 kodu08 60 00
CSI MasterFormat 2014 başlığıRoof Windows and Skylights
OmniClass numarası23-17 13 23
OmniClass başlığıRoof Windows

Bölge bulunurluk durumu

Avrupa	Asya	Kuzey Amerika	Afrika	Güney Amerika	Okyanusya
Åland	Afganistan	Anguilla	Angola	Arjantin	Amerikan Samoası
Almanya	Azerbaycan	Antigua ve Barbuda	Batı Sahara	Bolivya	Avustralya
Andorra	Bahreyn	Aruba	Benin	Brezilya	Cook Adaları
Arnavutluk	Bangladeş	Bahamalar	Botswana	Ekvador	Fiji
Avusturya	Bhutan	Barbados	Burkina Faso	Falkland Adaları (Islas Malvinas)	Fransız Polinezyası
Belçika	Birleşik Arap Emirlikleri	Belize	Burundi	Fransız Guyanası	Guam
Bosna Hersek	British Indian Ocean Territory	Bermuda	Çad	Guyana	Kiribati
Bulgaristan	Brunei Sultanlığı	Birleşik Devletler	Cape Verde	Kolombiya	Kuzey Mariana Adaları
Cebelitarık	Christmas Adası	Caribbean Netherlands	Cezayir	Paraguay	Marshall Adaları
Çek Cumhuriyeti	Çin	Cayman Adaları	Cibuti	Peru	Mikronezya Federal Devletleri
Danimarka	Cocos Adaları	Curaçao	Comoros	Şili	Nauru
Estonya	Endonezya	Dominik	Demokratik Kongo Cumhuriyeti	Surinam	New Caledonia
Faroe Adaları	Ermenistan	Dominik Cumhuriyeti	Ekvator Ginesi	Uruguay	Niue
Finlandiya	Filipinler	El Salvador	Eritre	Venezuela	Norfolk Adası
Fransa	Filistin	Grenada	Esvatini̇		Palau
Guernsey	Güney Kore	Grönland	Etiyopya		Papua Yeni Gine
Hırvatistan	Gürcistan	Guadeloupe	Fas		Pitcairn Adaları
Hollanda	Hindistan	Guatemala	Fildişi Sahili		Samoa
İngiltere	Hong Kong	Haiti	Gabon		Solomon Adaları
İrlanda	Irak	Honduras	Gambiya		Timor-Leste
Isle of Man	İran	İngiliz Virjin Adaları	Gana		Tokelau
İspanya	İsrail	Jamaika	Gine		Tonga
İsveç	Japonya	Kanada	Guinea-Bissau		Tuvalu
İsviçre	Kamboçya	Kostarika	Güney Afrika		United States Minor Outlying Islands
İtalya	Katar	Küba	Güney Sudan		Vanuatu
İzlanda	Kazakistan	Martinique	Kamerun		Wallis ve Futuna
Jersey	Kırgızistan	Meksika	Kenya		Yeni Zelanda
Karadağ	Kuveyt	Montserrat	Kongo
Kıbrıs	Laos	Nikaragua	Lesotho
Kuzey Makedonya	Lübnan	Panama	Liberya
Letonya	Macau	Porto Riko	Libya
Liechtenstein	Maldivler	Saint Barthélemy	Madagaskar
Litvanya	Malezya	Saint Kitts ve Nevis	Malavi
Lüksemburg	Moğolistan	Saint Lucia	Mali
Macaristan	Myanmar (Burma)	Saint Martin	Mauritius
Malta	Nepal	Saint Pierre ve Miquelon	Mayotte
Moldova	Özbekistan	Saint Vincent ve Grenadines	Mısır
Monako	Pakistan	Sint Maarten	Moritanya
Norveç	Singapur	Trinidad ve Tobago	Mozambik
Polonya	Sri Lanka	Turks ve Caicos Adaları	Namibya
Portekiz	Suriye	Virjin Adaları	Nijer
Romanya	Suudi Arabistan		Nijerya
San Marino	Tacikistan		Orta Afrika Cumhuriyeti
Sırbistan	Tayland		Reunion
Slovakya	Tayvan		Ruanda
Slovenya	Türkiye		Saint Helena
Svalbard	Türkmenistan		São Tomé ve Príncipe
Ukrayna	Umman		Senegal
Vatikan	Ürdün		Seychelles
Yunanistan	Vietnam		Sierra Leone
	Yemen		Somali
			Sudan
			Tanzanya
			Togo
			Tunus
			Uganda
			Zambiya
			Zimbabwe