Exaco

Additional Roof Window for Royal Victorian Greenhouses from Exaco Janssens

Additional Roof Window for Royal Victorian Greenhouses from Exaco Janssens

4.9/5 · 147 verified reviews

An extra roof window for Royal and Junior Victorian greenhouses that adds airflow right where warm air collects.

Regular price $419.00 USD
Regular price Sale price $419.00 USD
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  • PRICE MATCH GUARANTEE
  • GREAT TECHNICAL SUPPORT
Automatic Window Opener
Wind Restraint System
★★★★★
“Greenhouse quality is superb and the customer service is outstanding. Thank you to Mulberry Greenhouses!”
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  • Fits Janssens Royal and Junior Victorian greenhouses
  • Measures 29" x 33"
  • 4 mm tempered safety glass, same as the greenhouse
  • Powder coated extruded aluminum frame
  • Stainless steel hardware and rubber gasket
  • Optional automatic opener and wind restraint kit
  • 100% free shipping
  • Authorized retailer
  • No sales tax (except georgia)
  • Price match guarantee
Questions before you buy? Talk to a greenhouse specialist: 678-408-8222 or Info@mulberrygreenhouses.com
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Product Description

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Additional Roof Window for Royal Victorian Greenhouses (Exaco Janssens)

An additional Roof Window for Royal Victorian Greenhouses is a great addition for your greenhouse for additional air circulation. 

The roof window fits the Janssens Royal and Junior Victorian greenhouses.  It is the same material as the greenhouse – 4mm tempered safety glass and powder coated extruded aluminum with stainless steel hardware and rubber gasket.

This can only be purchased with the purchase of a greenhouse and cannot be shipped alone. 

Features & Specifications of the Roof Window for Royal Victorian Greenhouses

  • 🌳 Dimensions: 29” x 33”
  • 🌳 powder coated extruded aluminum 
  • 🌳 stainless steel hardware and rubber gasket
  • 🌳 Easy to install

Option 1: Exaco Janssens Automatic Roof Window Opener

This is an amazing feature provided for Royal or Junior Victorian greenhouse owners who do not want to manually open their roof windows. The black tube is filled with special paraffin oil - which expands when the temperature reached around 72º and the piston will push the window open up to about 14". When temperature falls a heavy spring pulls the window closed. No electricity needed!

Features and Specifications for the Automatic Roof Window Opener

  • Fully automatic - no electricity needed!
  • Opens to approx 14"
  • opens roof window automatically when it reaches 72º 
  • Automatically closes when temperature drops.
  • Please read instructions included with the Ventomax auto opener to fully understand the functioning and maintenance for these unique openers
  • Black color

Installation

Installing the automatic opener requires 2 bolts to be inserted into the roof crossbar for the lower mount The upper mount will clamp onto the window profile (Shown to the right).

    Option 2: Roof Window Wind Restraint kit

    The Roof Window Wind Restraint kit System protects auto-openers from powerful wind gusts. Sometimes the Auto Window openers can be pushed to open due to heavy winds which could cause them to break. The Restraint Kit can provide a secure system that will protect it from breakage. 

    This kit contains Two 15" stainless steel cables with nuts & bolts that are good for only for one roof Window. This kit can be used for both Can be used with RIGA and Victorian Greenhouses.

    Features and Specifications of the Restraint Kit

    🌳 Great to restraint roof windows in case of heavy winds.

    🌳 Two 15" stainless steel cables with nuts & bolts

    🌳 The Restraint Kit if for ONE roof window.

    🌳 This kit can be used for both Can be used with RIGA and Victorian Greenhouses.

      • 29" x 33" Size
      • 4 mm tempered safety glass Glazing
      • Powder coated extruded aluminum Frame
      • Stainless steel, with rubber gasket Hardware
      • Janssens Royal Victorian and Junior Victorian greenhouses Fits

      Exaco · Accessory

      Overview

      More roof ventilation keeps a Victorian greenhouse comfortable on warm days. This additional roof window fits the Janssens Royal and Junior Victorian greenhouses and is made from the same materials as the greenhouse itself: 4 mm tempered safety glass in a powder coated extruded aluminum frame, with stainless steel hardware and a rubber gasket. It is easy to install.

      You can add two options. The automatic opener uses a cylinder of paraffin oil that pushes the window open about 14" when the temperature reaches around 72º, and a heavy spring pulls it closed as it cools, with no electricity needed. The wind restraint kit adds two 15" stainless steel cables that keep strong gusts from forcing the window open and breaking the opener.

      Please note: this window can only be purchased with a greenhouse and cannot be shipped on its own.

      Additional Roof Window for Royal Victorian Greenhouses from Exaco Janssens – main product photo

      Why customers choose it

      Built to match your Victorian

      Additional Roof Window for Royal Victorian Greenhouses from Exaco Janssens – photo 2 of 2

      Same glass as your greenhouse

      4 mm tempered safety glass in powder coated extruded aluminum, so the window matches the rest of the house.

      Sealed and corrosion resistant

      Stainless steel hardware and a rubber gasket keep the window tight and weatherproof.

      Opens itself, if you like

      With the automatic opener, the window opens about 14" at around 72º and closes again as it cools, with no electricity.

      Protected from gusts

      The optional wind restraint kit uses two 15" stainless steel cables to keep the wind from forcing the window open.

      The details

      Specifications

      Dimensions

      Size 29" x 33"

      Materials

      Glazing 4 mm tempered safety glass
      Frame Powder coated extruded aluminum
      Hardware Stainless steel, with rubber gasket

      Fits

      Fits Janssens Royal Victorian and Junior Victorian greenhouses
      Shipping Ships only with a greenhouse order

      Options

      Automatic opener Opens about 14" at around 72º, closes with a spring, no electricity
      Wind restraint kit Two 15" stainless steel cables with nuts and bolts, for one roof window

      Good to know

      Frequently asked questions

      Can't find your answer? Our greenhouse specialists are happy to help you choose.

      678-408-8222 Email us
      Which greenhouses does this roof window fit?
      It fits the Janssens Royal Victorian and Junior Victorian greenhouses, and it is made from the same 4 mm tempered glass and powder coated aluminum as the greenhouse.
      Can I buy the roof window on its own?
      No. The window can only be purchased together with a greenhouse and cannot be shipped alone.
      How does the automatic opener work?
      Its black cylinder is filled with paraffin oil that expands as it warms. At around 72º the piston pushes the window open up to about 14", and when the temperature falls a heavy spring pulls it closed. It needs no electricity. Installation takes 2 bolts in the roof crossbar for the lower mount, and the upper mount clamps onto the window profile.
      Do I need the wind restraint kit?
      It is a smart addition if you get strong winds. Heavy gusts can push an auto-opened window and break the opener. The kit's two 15" stainless steel cables hold the window securely. One kit covers one roof window, and it also works on Riga greenhouses.
      Is shipping really free?

      Yes. Shipping is free. Locations with limited access, such as islands, are rare exceptions that may carry an extra fee, and we'll tell you before anything ships.

      Do you offer a price match?

      Yes. If you find the same greenhouse for less from an authorized dealer, call or email us with the offer and we'll review it.

      Are you an authorized retailer?

      Yes. Mulberry Greenhouses is an authorized retailer, so your greenhouse is covered by the full manufacturer warranty.