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Pitched Roof Window Skylight 1200 x 2000 mm, Frameless Triple Glazed, 107kg, UV 0.9 Original price was: £1,499.00.Current price is: £1,237.98. incl. VAT
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Pitched Roof Window Skylight 1200 x 2500 mm, Frameless Triple Glazed, 161.70kg, UV 0.9 Original price was: £1,710.50.Current price is: £1,461.70. incl. VAT
Skylights1

Flat Roof Window Skylight 1200 x 2500 mm, Frameless Triple Glazed, 161.70kg, UV 0.9

(3 customer reviews)

Original price was: £1,956.27.Current price is: £1,461.70. incl. VAT

Limited time offer! Just 26 products left in stock

The price goes back up when the timer hits zero.

Skylights1 designs and manufactures the highest quality roof windows in the industry.

Glazing Type: Triple Glazed
Internal Size: 1200 x 2500 mm
External Size: 1400 x 2700 mm
U Value: 0.9 W/m²K
G Value: 58%
Sound reduction (EN 12758): 39dB
Net Weight: 161.70kg
Nationwide Delivery
Free Delivery within London (M25)

Blinds are not included in the skylight price!

Price Match Guarantee

26 in stock

Plywood Insulated Upstand 1200 x 2500 mm (for Flat Roof)

3 in stock (can be backordered)

-
+
Original price was: £650.00.Current price is: £523.45. incl. VAT
Skylight Blinds for Flat Roof Window 1200x2500mm - Hardwired, Translucent

22 in stock

-
+
Original price was: £1,113.00.Current price is: £775.50. incl. VAT
Installation kit for 1 x Flat Roof Skylight 1200x2500mm
-
+
£80.30 incl. VAT
Foam Rope - Structural Glazing Tape – 9mm Thick (7.5m Rolls)
-
+
£18.70 incl. VAT
Weatherproofing Sealant (Silicon) - DOWSIL™ 791, 310ml
-
+
£15.40 incl. VAT
Self-Cleaning Liquid Smart Glass Bottle 15ml
-
+
£19.90 incl. VAT

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SKU: fl1200x2500 Category: Tag:
Description

Flat Roof Window 1200 x 2500 mm

 

Our premium non-opening frameless skylights are triple glazed with 6mm toughened, self-cleaning glass, a U Value of only 0.9 W/m²K., and a clear tint that lets you enjoy the beautiful true colors of the sky from your home.

The Flat Roof Window Skylight 1200 x 2500 mm has an internal quoted glass size of 1200 x 2500 mm, and an external glass size of 1400 x 2700 mm. Perfect for those who want to open up their living space, with an easy-to-install and cost-effective skylight. No more cold drafts, this high-performing skylight, filters down the heat and brings natural light to your home, making it a better place to live.

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.

Have you made your choice or are you still hesitating between different types of roof windows?

If you are looking for custom design solution, Skylights1 can make custom size skylights that vary from our standard sizes and suit your required dimensions.

N.B. In this case, when the width exceeds one meter, it is recommended for the bottom pane of glass to be Thermally Toughened due to static reasons.

Skylight Specifications

  • Glazing Type: Triple Glazed
  • U Value: 0.9 W/m²K
  • Self-Cleaning: YES
  • 20 Years Warranty
  • Safety Toughened
  • Top Glass Pane: 8 mm Planibel Clearlite / Thermally toughened glass BS EN 12150
  • Middle Glass Pane: 6 mm Planibel Clearlite / Thermally toughened glass BS EN 12150
  • Bottom Glass Pane: 6 mm iplus Thermally toughened glass with Low-E coating EN 12150
  • Internal Glass Size (QUOTED): 1200 x 2500 mm
  • External Glass Size: 1400 x 2700 mm
  • Net Weight: 166kg
  • Clear Tint
  • Аll Glass Panels
  • Spacer Type: 15mm Black Warm Edge
  • Air Gap: 15mm 90% Argon Filled
  • 3xMore Light Than Other Brands
For Increased Light & Security

Triple Glazed Skylights

Skylights are wonderful for getting additional natural light into your home. They are also great for increasing energy efficiency by maximising the amount of natural light that you let into your home and taking advantage of it during the day. Triple glazed skylights take this to the next level by providing a triple layer of glass, and Low-E film to ensure that your rooms are beautifully lit. They provide three layers of protection to keep your family safe and cool, which is something that any homeowner should be able to get behind.

Superior insulation

By reducing heat loss or gain, skylights with superior insulation can help to keep the interior of a building more comfortable year-round.

Increase energy efficiency

Skylights can reduce the need for artificial lighting during the day, potentially saving energy and reducing electricity costs.

Reduce noise

By blocking out exterior noise, skylights can help to reduce stress and promote a more relaxing and peaceful atmosphere.

Enhanced security

Prevent break-ins and protect against intruders. This can provide peace of mind and help to keep your home and family safe.

Keep interior cooler in summer

By keeping the interior of a building cooler, skylights can help to improve overall comfort during the hot summer months.

Reduced harmful UV radiation

Protect furniture, flooring, and other interior elements from fading and damage caused by UV exposure.

You Will Love Your

Self-Cleaning Skylight

You'll never have to clean the glass again! It's the perfect way to keep your home cleaner for longer. With zero UV emissions, this is the only window cleaner you'll ever need. Keep your home looking its best with our self-cleaning skylights!

Activation of the coating by UV radiation and natural dirtying

After installation, the special coating needs 5 to 7 days of exposure to daylight to activate.

Decomposition of the organic dirt

The coating breaks down organic dirt and also reduces the adherence of inorganic dirt.

Rain water washes away the loosened and degraded dirt.

Water droplets spread out to form a ‘sheet’. Dirt particles on the surface are picked up by water and washed off glass.

Eco-friendly Packaging

We believe in a world where our environment and the people who inhabit it live in harmony. Making a conscious effort to avoid using non-renewable resources is one of the best ways you can make a positive impact on the environment. That’s why we use only plastic-free packaging.
We use a sustainable packaging solution that provides longevity, versatility, and security. Wooden packaging is the future of shipping - why not save the Earth while you're at it?

All the plastics and components made of expanded polystyrene are eliminated, and now you can enjoy your roof windows package in the convenience of your home.

FAST UK SHIPPING

Skylights on Stock

Next Day Delivery for the London area (M25) or Free of charge 3-6 working days. We ship nationwide.

LOW PRICES

Best Value For Everyone

Our low pricing means that you can order at competitive prices, whether you are a trade or not.

20 YEARS WARRANTY

Our premium triple glazed skylights come with a 20 year warranty.  You'll never have to worry about the quality again.

SECURE PAYMENT

Safe payment methods

We offer online payment methods we think are the most secure.

CUSTOMER SUPPORT

We're here to help

Discuss your specific needs and get answers to all of your questions.

Imagine a Better World

Founded on a vision of daylight, privacy and quality of life, Skylights1 offers a complete range of high-quality skylights, roof lanterns, flashings and installation products.

✔

Enjoy the natural light and a warm atmosphere in your home.

✔

Improve the aesthetics of your home with our wide range of roof windows

✔

Create a better design that reflects your taste, personality and lifestyle.

✔

Enhance the quality of life with increased natural lighting in dark areas

✔

Increase your privacy and save money with our energy efficient products.

✔

Enhance the beauty of your home, make it smart, modern, and sophisticated.

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Save Energy & Money

What's better than adding functionality to your home? Saving money, of course! Skylights are the perfect solution for bringing natural light into your home, which can reduce energy costs.

Our energy-efficient units are designed to provide maximum insulation and natural lighting, reducing electricity bills and ensuring you never have to worry about turning on artificial lights during the day. Get cozy this winter with the sunlight from our skylights, plus save on heating and cooling costs all year long. Create a brighter, more comfortable living space - hassle-free with Skylights1 products!

Improve Your Health

With skylights you can enjoy the health benefits of Vitamin D while also adding a beautiful aesthetic to your home. Our innovative designs will bring in plenty of natural light while providing you energy efficiency and a variety of customization options so that you can find your perfect fit.

Bringing in natural light, skylights can instantly reduce stress and anxiety while improving creativity, focus, and productivity. Our skylights come in a variety of colors, sizes, and shapes to fit any space - giving you the perfect balance of natural light year-round! With skylights, you’ll feel more connected to the world around you for an improved quality of life.

Increase Home Value

Upgrade your home with skylights - the perfect way to add natural light, ventilation, and style into your home! Our innovative design ensures that you get the most out of your window in terms of efficiency, comfort, and longevity, while adding value to your property. Whether you plan to stay in your home for years or just a couple of months, skylights will help you maximize the value when it comes time to sell.

With skylights, you'll not only improve the value of your home, but also enjoy the benefits of natural light and privacy. Plus, you can choose from a variety of styles to match your home's decor. Don't wait any longer - make your home feel more spacious and inviting with skylights today!

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Electric Blinds

Roof lights and skylight windows have been a fantastic addition to most properties for many years, due to their high energy-saving qualities and their sleek and modern look. In addition to them, skylight blinds are becoming more and more popular by adjusting the amount of sunlight, entering the space and therefore keeping the temperature of your office or home in the cooler or the warmer range.

Our roof light blinds and shades add a touch of modern, luxury design to any environment and allow you to enjoy natural light at its best any time of the day.

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Reasons Why Clients Choose Us

Subtle Aesthetic Vision

High Quality Materials

Easy-to-install design

Nationwide Delivery

Full Custom Skylight

3x More Light Than Other Brands

Fast Shipping

Fast Shipping

Best U-value

Argon Gas Filled

Toughened Glass

20-year Warranty

Skylight Installation

Skylights One Ltd skylights are a lot more than just roof windows.

They are some of the most beautiful, energy-saving, and innovative skylights on the market.

And now, you can install them yourself with our handy installation guide, no matter what size your opening is!

INSTALATION GUIDE

Frequently Asked Questions

What guarantees and warranties do you offer?

We offer a 20 year seal warranty on all our skylights.

Tristique parturient nulla ullamcorper at ullamcorper non orci iaculis neque augue.

What does the warranty cover?

Our warranty is CE certified and meets European standards. As long as you install your skylight unit as per our instructions, the warranty is valid for twenty years. This covers you for any defects or damages, and we offer an aftercare service.

How can I get a price?

All our Skylight prices are on our product page. Discounts may be given if an order is above £2/5000 given as a trade price. Please contact our Customer Support Team for more information if you wish to make a large order so we are able to give you a discount code.

Can I collect my Skylight in person?

Yes, you can! Once you have placed and paid for your order, please get in touch with our Customer Support Team who will arrange someone to prepare your order for collection.

May I calculate the delivery costs to my location?

Yes, you can, if you go through to checkout, it will work out the delivery costs and options without placing an order.

Do you do the installation as well?

No, we do not install. We only supply the skylights. We recommend looking for a reputable roofer within your area who can carry out the installation professionally.

Do your skylights open and close?

Yes, we offer fixed and openable skylights.

What is the max Ug-Value?

The maximum value our skylights has is 0.9 W/m²K

Can I have blinds on my Skylight?

Yes, you can have them installed once your skylight is fitted! As the installation of blinds behind the glazing increases the risk of Thermal Stress Glass Breakage, we advise you to install the blinds at a minimum distance of 150 mm from the glass.

Will it be noisy if it rains?

All our Skylights come triple-glazed which provides optimum sound insulation. This, in turn, would help minimise any rain noise. The more panes of glass, the better the noise resistance and the greater the distance between each glass, the better your sound insulation will be. All our skylights are designed with these factors in mind. We offer triple glazed skylights with 6mm toughened safety glass as standard and a generous 15mm gap between the panes and bottom. Panes are 8mm thick reducing noise to maximum.

Where are your skylights sourced from?

Our skylights are manufactured in Europe.

What makes us different from the rest of the market?

Skylights1.com guarantees in supplying top quality products at the Best Price, due to manufacturing and delivering everything in house.

What accessories will I need?

Do these come as standard or do I need to order them separately? You will need foam rope, weather proofing silicone and flashing kits along side your skylight. We have all of these on our website so you can order everything you need from us so you are ready to go.

Can I get next day delivery?

Yes, we offer express delivery to most postcodes. Please check this service on our website or give us a call.

How Can I Pay for my Skylight?

We accept PayPal, Credit and/or Debit Cards (Stripe), Google Pay, Amazon Pay and Direct Bank Transfer. You will see these payment methods offered to you upon check out. Unfortunately, we only accept payment in advance.

What pitch should my flat-roof skylight be?

It is important to have your skylight installed at a slight angle relative to the horizon to allow water to run off the glass and avoid pooling. We recommend setting the rooflight at an angle of 45°. It is worth it to spend a few extra minutes before applying the silicone to run a water test.

What is the lead time for items in stock?

Lead time depends on the size of the unit and the exact location in the UK, please add the item to your card and your delivery postcode and you will see all delivery options to your location-keep in mind that you will not be charged at this stage.

What is the maximum pitch for these skylights?

Minimum 6, maximum 45 degrees.

How do I place an order? Can i do it over the phone?

The website is the only place to place an order, and we don't take orders over the phone- but we are always contactable to answer any questions at any point.

Can I hold off on delivery if I’m not ready yet?

Yes, just let us know any instructions for delivery or delivery dates in the “notes” box during checkout.

Can I apply my own tint?

You can order a tint for your skylight by selecting the option on our custom calculator, we offer a green or blue tinted option.

Will the window need assembling upon arrival?

No, the skylights arrive ready to install (don’t forget to order your accessories separately so you can be ready to go).

Double or Triple Glazed?

Triple Glazed skylights tend to have a better U-Value and Noise Resistance. What this means is that a triple glazed skylight will have better noise reduction properties if you live in a noisy area. The lower U-Value benefit of them is that they have less heat loss. So if you plan on having a larger skylight or more than one skylight on your extension letting in more natural light we would recommend going for triple as it will save you on your energy bills and lose less heat.

Double Glazed Skylights tend to be lighter in weight and easier for installations however they are not as good on heat loss and noise reduction as triple. 

Get answers to all your questions you might have.

Introducing Skylights1, your one-stop solution to brighten up any home. Get the perfect skylight for your space with our custom design options that fit any size requirement. Stop wasting time and money trying to find the right window. Our friendly team of experts are here to help you make the best choice, fast! With Skylights1, you get the perfect skylight to suit your needs!

CALL US NOW

See all sizes Skylights

All sizes
Additional information
Weight 161.70 kg
Dimensions 205 × 10 × 145 cm
brand

manufacturer

Size

Reviews (3)

3 reviews for Flat Roof Window Skylight 1200 x 2500 mm, Frameless Triple Glazed, 161.70kg, UV 0.9

  1. Michael Gregson –

    The customer support team was fantastic. They made the whole experience smooth and stress-free. A real pleasure to work with.

  2. Rita Roper –

    Great customer service and the outstanding quality of the products! Thank you!

  3. Martin North –

    Operating in Manchester, we appreciate a straightforward ordering process. This company delivers just that. Their site makes it easy to find what we need, the payment process is secure, and their customer support is top-notch. It’s a seamless experience.”

Add a review

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Shipping & Delivery

All our shipping is Free of charge on orders over £400 within the London (M25) Area.

All standard sizes Flat & Pitched Skylights are delivered between 3 to 6 working days.

All Custom Size orders take 3 to 6 weeks to be produced and shipped over to the UK. They are free of delivery fees.

Roof Lanterns delivery is within 10-14 working days from the day the order was placed.

Framed Skylights delivery is within 10-14 working days from the day the order was placed.

Electric Opening Skylights delivery is within 10-14 working days from the day the order was placed.

Walk-On Skylights delivery is within 10-14 working days from the day the order was placed.

Skylight Blinds delivery is within 10-14 working days from the day the order was placed.

Monday to Friday from 8 am until 5 pm.

We will contact you to arrange a suitable delivery time, once payment has been processed.

Please add to cart the products you want and enter the shipping address to view delivery cost.

Our own drivers deliver within London (M25) in order to guarantee the safe arrival of all our products.

Please be aware that as our drivers are alone and pre-loaded in our warehouse, we will require you or your builders to be on-site for the acceptance of all orders.

For orders outside M25, we use an external shipping network. Once sent, they will call you to book a suitable date and time for delivery. 

The Extra Economy Shipping options work for all areas, except Northern Ireland and Scotland.

 Some of these companies may not have the correct vans in place and might not be able to deliver to your door, so we might have to ask you to pick it up from the local depot (usually within 20 min drive) however this is rare.  

Most of our products weigh a considerable amount varying from 10kg to 280kg, therefore it may need more than two, four, or even six people to unload depending on the size and weight of your product.

We will not accept liability for any broken skylights during the unloading process, as it is down to the customer to organise this process.

In the event that the customer does not attend the delivery appointment or no one is there to accept your product, we will try and contact you via phone, text, and voicemail before our driver leaves your delivery address.

If no contact is made, we will have no option but to return your product to our warehouse.

Installation Guide

Skylight Windows

Installation Guides

At Skylights1, our rooflights go beyond the ordinary. They combine beauty, energy efficiency, and innovation, making them some of the best on the market. Now, with our easy installation guides, you can set them up yourself, regardless of your opening’s size.
 

Say goodbye to complicated installations!

Our skylight installation guide provides clear and concise instructions to help you easily install our range of roof windows. From flat roof windows to pitched roof windows, our guides guide you step-by-step through the process, ensuring a hassle-free installation.

Flat Roof Skylights Installation
Pitched Roof Skylights Installation
Roof Lanterns Installation
Electric Blinds Installation

Structural opening – provided By builder

Bear in mind our Skylights sizes are the sizes of the bottom (internal) glass panel. The top panel is stepped by 100mm on each side, and the overall externally visible size is 200mm bigger in both directions:

For example, only in this guide will we present installation sketches for a Skylight 600mm x 600 mm. For all other sizes, we provide installation sketches in the gallery of each size separately.

Double/Triple Glazed Skylight 600x600mm has the following sizes:

The upstand should protrude a minimum of 150mm above the roof level

A minimum pitch of 8-10 degrees relative to the horizon must be provided to avoid water pooling in the middle of the glass panel (for every metre of Skylight a 10cm fall is required). It is worth spending a few extra minutes before applying the silicone to run a water test to ensure the water is not pooling (even though you are installing glass it will still bend in the middle). The internal distance upstand to upstand needs to be 10mm bigger than the quoted skylight size (in our example: 610mm by 610mm).

Upstand opening should allow for 5mm tolerance on each side:

Skylight Support – provided By builder

Install the support in such a way that the top of support is as follows:

-Triple Glazed Skylight – 46mm below the top of upstand

The Skylight support is a 25x50mm (2”x1” ) timber:

Weather the upstand

Apply the roof covering material to cover the external face and top of the upstand. 

Make sure all surfaces where the silicone will be applied are clean of dirt, dust, moisture, etc.

  1. Apply the foam rope on top of the 2”x1” timber support to level off any discrepancies which will prevent any pressure and stop cracking on the bottom glass laminated pane. THE WARRANTY WILL BE VOID IF A FOAM ROPE IS NOT USED.
  2. Apply, generously, on top of the upstand weatherproof sealant, usually, 1 tube is enough for 6 linear metres.
  3. Lower the skylight with suction cups, and make sure you check the load on each cup.
  4. Apply waterproof sealant on the underside of the overhang and smooth it over once more to make sure it is watertight.

Once you finish weathering the upstand, you are ready to install the Skylight.

Video Presentation

Installation Guides

Installation

Accessories

Easily complete your skylight installation with our range of high-quality skylight installation accessories.

Foam Rope
Weatherproofing Sealant
Smooth Lead Flashing
Textured Lead Flashing

Weatherproofing Sealant (Silicon) – DOWSIL™ 791, 310ml

,

In stock

£15.40 incl. VAT
Add to basket
DOWSIL™ 791 Weatherproofing Silicone Sealant is a one-part, low modulus, neutral curing weatherproofing silicone sealant designed for both commercial and domestic applications. It provides excellent unprimed adhesion to most porous and non-porous surfaces.

Frequently Asked Questions

What guarantees and warranties do you offer?

We offer a 20 year seal warranty on all our skylights.

Tristique parturient nulla ullamcorper at ullamcorper non orci iaculis neque augue.

What does the warranty cover?

Our warranty is CE certified and meets European standards. As long as you install your skylight unit as per our instructions, the warranty is valid for twenty years. This covers you for any defects or damages, and we offer an aftercare service.

How can I get a price?

All our Skylight prices are on our product page. Discounts may be given if an order is above £2/5000 given as a trade price. Please contact our Customer Support Team for more information if you wish to make a large order so we are able to give you a discount code.

Can I collect my Skylight in person?

Yes, you can! Once you have placed and paid for your order, please get in touch with our Customer Support Team who will arrange someone to prepare your order for collection.

May I calculate the delivery costs to my location?

Yes, you can, if you go through to checkout, it will work out the delivery costs and options without placing an order.

Do you do the installation as well?

No, we do not install. We only supply the skylights. We recommend looking for a reputable roofer within your area who can carry out the installation professionally.

Do your skylights open and close?

Yes, we offer fixed and openable skylights.

What is the max Ug-Value?

The maximum value our skylights has is 0.9 W/m²K

Can I have blinds on my Skylight?

Yes, you can have them installed once your skylight is fitted! As the installation of blinds behind the glazing increases the risk of Thermal Stress Glass Breakage, we advise you to install the blinds at a minimum distance of 150 mm from the glass.

Will it be noisy if it rains?

All our Skylights come triple-glazed which provides optimum sound insulation. This, in turn, would help minimise any rain noise. The more panes of glass, the better the noise resistance and the greater the distance between each glass, the better your sound insulation will be. All our skylights are designed with these factors in mind. We offer triple glazed skylights with 6mm toughened safety glass as standard and a generous 15mm gap between the panes and bottom. Panes are 8mm thick reducing noise to maximum.

Where are your skylights sourced from?

Our skylights are manufactured in Europe.

What makes us different from the rest of the market?

Skylights1.co.uk guarantees in supplying top quality products at the Best Price, due to manufacturing and delivering everything in house.

What accessories will I need?

Do these come as standard or do I need to order them separately? You will need foam rope, weather proofing silicone and flashing kits along side your skylight. We have all of these on our website so you can order everything you need from us so you are ready to go.

Can I get next day delivery?

Yes, we offer express delivery to most postcodes. Please check this service on our website or give us a call.

How Can I Pay for my Skylight?

We accept PayPal, Credit and/or Debit Cards (Stripe), Google Pay, Amazon Pay and Direct Bank Transfer. You will see these payment methods offered to you upon check out. Unfortunately, we only accept payment in advance.

What pitch should my flat-roof skylight be?

It is important to have your skylight installed at a slight angle relative to the horizon to allow water to run off the glass and avoid pooling. We recommend setting the rooflight at an angle of 45°. It is worth it to spend a few extra minutes before applying the silicone to run a water test.

What is the lead time for items in stock?

Lead time depends on the size of the unit and the exact location in the UK, please add the item to your card and your delivery postcode and you will see all delivery options to your location-keep in mind that you will not be charged at this stage.

What is the maximum pitch for these skylights?

Minimum 6, maximum 45 degrees.

How do I place an order? Can i do it over the phone?

The website is the only place to place an order, and we don't take orders over the phone- but we are always contactable to answer any questions at any point.

Can I hold off on delivery if I’m not ready yet?

Yes, just let us know any instructions for delivery or delivery dates in the “notes” box during checkout.

Can I apply my own tint?

You can order a tint for your skylight by selecting the option on our custom calculator, we offer a green or blue tinted option.

Will the window need assembling upon arrival?

No, the skylights arrive ready to install (don’t forget to order your accessories separately so you can be ready to go).

Double or Triple Glazed?

Triple Glazed skylights tend to have a better U-Value and Noise Resistance. What this means is that a triple glazed skylight will have better noise reduction properties if you live in a noisy area. The lower U-Value benefit of them is that they have less heat loss. So if you plan on having a larger skylight or more than one skylight on your extension letting in more natural light we would recommend going for triple as it will save you on your energy bills and lose less heat.

Double Glazed Skylights tend to be lighter in weight and easier for installations however they are not as good on heat loss and noise reduction as triple. 

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Skylight Blinds for Flat Roof Window 1200x2500mm – Hardwired, Translucent

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Foam Rope – Structural Glazing Tape – 9mm Thick (7.5m Rolls)

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Plywood Insulated Upstand 1200 x 2500 mm (for Flat Roof)

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Original price was: £650.00.Current price is: £523.45. incl. VAT
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