Name: 1200 x 1800 mm Skylight, Pitched Roof, Triple Glazed, Frameless, 106.80kg, UV 0.9
Brand: Saris-Extensions
SKU: pt1200x1800
Price: 735.20 GBP
Availability: InStock
Rating: 5.00 (1 reviews)

SPECIFICATIONS

Pitched Roof Skylight / Rooflight 1200 x 1800 mm

Our pitched roof skylights are manufactured to the highest standard making them frameless from the inside and out. They are easily installed with lead flashing, that’s cut on-site that is suitable for all roofs. As they are frameless internally they let in more light.

This high-performance, non-opening frameless skylight is triple glazed with 6mm toughened, self-cleaning glass and a U Value of only 0.9 W/m²K. The internal quoted glass size is 1200 x 1800 mm, see the structural diagram below.

When purchasing a pitched roof skylight for a tiled roof from us it is very simple.

All our skylights come triple-glazed as standard and have solar protection.

The upstand is formed with the same opening as you can see in our drawings.

All you need to add is the flashing of your choice in our accessories section.

The flashing is then wrapped around your upstand sealing the upstand to your roof tiles.

Make sure you have added the right amount of flashing, the full circumference of your skylight will require flashing.

Our rolls come in 7.5-meter lengths. Let’s say you have bought a 1000 x 2000mm skylight you then require a total of 6 meters as you have 2x 1 meter sides and 2x 2 meters becoming a total of six lineal meters therefore one roll of flashing will be required.

Glazing Type: Triple Glazed
Internal Glass Size (QUOTED): 1200 x 1800 mm
External Glass Size: 1400 x 2000 mm
Top Glass Pane:6 mm Planibel Clearlite / Thermally toughened glass BS EN 12150
Spacer Type: 15mm Black Warm Edge
Air Gap: 15mm 90% Argon Filled
Middle Glass Pane:4 mm Planibel Clearlite / Thermally toughened glass BS EN 12150

Bottom Glass Pane:Stratobel Clearlite 44.2 iplus 1.1 / Laminated glass with Low-E coating EN 14449
U Value: 0.9 W/m²K
G Value: 58%
Net Weight: 107kg
Self-Cleaning: YES
UV Protected: YES
Clear Tint

Safety and Compliance: Choosing the Right Skylight

When it comes to choosing a roof light for your home, we know that safety is an important deciding factor.

This product conforms to British Standards & Building Regulations and has all Safety Markings.

It is CE marked which is a certification mark that indicates conformity with the relevant EU directives and standards for products sold within Europe.

Our Skylights can be installed at a maximum pitch of 45 degrees.

Installation Specifications and Recommendations:

Internal Dimensions: It's important to note that the top pane of glass includes a black border, extending the external dimensions of the unit by 200 millimetres in each direction.
Creating the Opening: When preparing for installation, allow an additional 10 millimetres internally from upstand to upstand for proper fitting. For example, for a 600 by 900 unit, the opening should be 610 by 910 millimetres internally.
Upstand Construction: We recommend constructing the upstand (the wooden framework housing the skylight) using two-by-one or two-by-two-inch timbers.
Foam Rope and Sealant Use: For optimal installation, install foam rope on top of the internal supporting baton, which helps level out weight discrepancies and stress on the glass. We advise using Dowsil 791 black-coloured sealant to create a watertight perimeter around your upstand. Please note that acrylic sealants are not compatible with our units and should not be used.

Find Your Perfect Fit with Our Custom Size Skylight Calculators

Explore the world of Pitched Roof Skylights

At Saris-Extensions, we combine elegance with cutting-edge technology. These skylights are not just additions to your roof; they are masterpieces of design, enhancing the energy efficiency and aesthetic appeal of your home or office. Embrace the seamless integration of style and functionality with our Pitched Roof Skylights.

Best Price
20 Years Warranty
Guarantee Payment Safety
Self Cleaning
Clear Tint
UV Protected
Free Delivery within London (M25)
Аll Glass Panels
Safety Toughened and Laminated Glass
Made In EU
London Based Stock
Quick and easy installation
Step By Step installation guide
24/7 technical helpline

Additional information

Weight	107 kg
Dimensions of packaging	55 × 10 × 55 cm
Brand	Saris-Extensions
Manufacturer	Saris-UK Ltd
Color	Clear
Size	1200×1800

SHIPPING

Free Delivery:

Available on all orders over £400 within the London (M25) area.

Delivery Times:

Standard Flat & Pitched Skylights: 3–6 working days.
Custom Sizes: 3–6 weeks for production and shipping (free delivery).
Roof Lanterns, Framed Skylights, Electric Opening Skylights, Walk-On Skylights, Skylight Blinds: 10–14 working days.
Glass Balustrades & Juliet Balconies: 4-8 weeks (after approval of detailed drawing)

Delivery Arrangements:

Delivery is scheduled Monday to Friday, 8 am to 5 pm.
We’ll contact you to arrange a delivery time once payment is complete.

Shipping Options:

Enter your shipping address at checkout to view options.
Within M25: Our drivers ensure safe delivery. We ask that you or your builders are present to accept the order.
Outside M25: We use external couriers. They will contact you to schedule delivery.
Extra Economy Shipping: Available for all areas except Northern Ireland and Scotland. In rare cases, you may need to pick up your order from a nearby depot.

Important Notes:

Products range from 10kg to 280kg. You may need 2–6 people to assist with unloading.
We are not liable for any damage during unloading, as it’s the customer’s responsibility.
If no one is available to receive the delivery, we will try to contact you. If unreachable, the order will be returned to our warehouse.

INSTALLATION GUIDE

Step-by-step Installation Guide

Over the years, we've observed numerous errors and poor practices in skylight installations that have led to persistent issues. To help you avoid these pitfalls, we're eager to share our accumulated expertise and knowledge. We highly recommend checking our detailed installation materials to ensure you apply the best practices for a flawless and durable installation.

Structural opening – provided By builder

When selecting sizes for our Skylights, please note that the listed dimensions correspond to the bottom (internal) glass panel. Each skylight's top panel extends an additional 100mm on each side, making the overall externally visible size 200mm larger in both width and length. This design ensures a robust, weather-resistant seal while maximizing the internal visibility and light entry of your skylight installation.

Manual Handling

Installation Guide

Installation on Flat Roofs

Installation on Pitched Roofs

Why Professionals Trust Our Upstands

insulated-osb-upstand-for-pitched-roof-gallery-image-1

insulated-osb-upstand-for-pitched-roof-drawing

No Water Build-Up

Built-in 6° slope ensures water runs off effortlessly

Thermal Protection

40mm insulation core with 15mm OSB for maximum efficiency

Quick & Accurate Installation

Tailored in advance to pair perfectly with your Saris-Extensions skylight

saris-extensions-direct-skylight-manufacturer

ukca-certified-skylights-saris-extensions

easy-skylight-installation-saris-extensions

Tailored to Your Home: Custom-Sized Skylight Solutions

If our standard stock sizes don't quite match your project’s requirements, there is no need to worry—we have the perfect solution.

At Saris Extensions, we specialize in providing high-quality, bespoke skylights designed to fit your specific architectural needs. Simply use our online custom size calculator to insert your opening dimensions and receive an instant, transparent quote. From precision engineering to your doorstep, we make it easier than ever to receive and fit a skylight that is perfectly scaled for your space.

Bespoke Skylight Calculators

Before & After

See the remarkable difference with a Saris-Extensions skylight.

Modern, frameless elegance
Exceptional insulation and UV defense
U Value: 0.9 W/m²K — superior thermal performance

One simple change. A world of transformation.

Choose Saris-Extensions.

Frequently Asked Questions

Are these rooflights energy efficient?

Yes. Our triple-glazed models deliver U-values as low as 0.9 W/m²K, helping to reduce heat loss, lower energy bills, and comply with Part L Building Regulations.

Is the skylight safe and shatter-resistant?

Absolutely. Every unit uses toughened outer glass and laminated inner glass, ensuring excellent durability and meeting all relevant UK and EU safety standards (EN12150 / EN14449).

Will this rooflight work with my roof type?

Yes. Designed for versatility, our rooflights fit pitched roofs between 6° and 45°, and are fully compatible with both tile and slate roofing materials. We also offer options for flat roofs.

Can this skylight be installed on any roof construction?

Yes. Whether your roof is warm or cold constructed, our skylights are suitable and designed for flexible installation.

Is the skylight guaranteed leak-proof?

Yes — when installed using our official flashing kit and following the provided instructions, the unit is fully watertight and weather-sealed.

Do the rooflights come with self-cleaning glass?

Yes. All models include self-cleaning glass as standard, helping to reduce dirt accumulation and maintain clear views with minimal maintenance.

What’s included when I purchase a skylight?

Each product comes with the glazed skylight unit and installation instructions. Optional items such as flashing kits, upstands, and blinds are available to order separately.

Can I order custom-sized rooflights?

Yes. We offer a full made-to-measure service, allowing you to order rooflights tailored to your exact dimensions. Contact us to request a custom quote.

How fast is delivery?

Standard sizes are dispatched within 5–10 working days. Custom and made-to-measure orders typically take 3–5 weeks. All orders are shipped via tracked and insured delivery

What warranty is included?

Our rooflights are backed by a robust 20-year glazing guarantee, giving you complete confidence and long-term protection.

Reviews

Rated 5 out of 5

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Rated 2 out of 5

Rated 1 out of 5

1 review for 1200 x 1800 mm Skylight, Pitched Roof, Triple Glazed, Frameless, 106.80kg, UV 0.9

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Tom Nordemann – 22.06.2022

Rated 5 out of 5
I have used this company a few times now there service is 10/10 I had a quire and rang the number and it was answered straight away. I recived my order delivered the next day ! would definatly recommend 👌

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Internal Size (quoted)	External Size
300x300mm	500x500mm
400x400mm	600x600mm
400x1500mm	600x1700mm
400x2000mm	600x2200mm
400x3000mm	600x3200mm
500x500mm	700x700mm
500x1500mm	700x1700mm
500x3000mm	700x3200mm
600x600mm	800x800mm
600x900mm	800x1100mm
600x1200mm	800x1400mm
600x1500mm	800x1700mm
600x1800mm	800x2000mm
600x2000mm	800x2200mm
600x2500mm	800x2700mm
600x3000mm	800x3200mm
800x800mm	1000x1000mm
800x1000mm	1000x1200mm
800x1200mm	1000x1400mm
800x1500mm	1000x1700mm
800x1800mm	1000x2000mm
800x2000mm	1000x2200mm
800x2500mm	1000x2700mm
1000x1000mm	1200x1200mm
1000x1200mm	1200x1400mm
1000x1500mm	1200x1700mm
1000x2000mm	1200x2200mm
1000x2500mm	1200x2700mm
1000x3000mm	1200x3200mm
1200x1200mm	1400x1400mm
1200x1800mm	1400x2000mm
1200x2000mm	1400x2200mm
1200x2500mm	1400x2700mm
1500x1500mm	1700x1700mm
1500x2000mm	1700x2200mm
1500x2500mm	1700x2700mm
1500x3000mm	1700x3200mm

1200 x 1800 mm Skylight, Pitched Roof, Triple Glazed, Frameless, 106.80kg, UV 0.9

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