Sheerline Flat Rooflight
Expertly crafted to flood your home with natural light
Our Sheerline flat rooflights are the epitome of low-maintenance elegance.
Key Features
Exceptional thermal insulation up to 1.0 U-value W/(m²K) and triple glazed U-Value up to 0.5 W/m²K
TOUGHENED SAFETY GLASS – Ensures safety and durability.
WATER TIGHT Seamless design ensures exceptional water tightness. Leak-free rooflights.
The Flat Rooflight System
■ Complete timber kit, bespoke to your specifications
■ Pre-assembled cassettes (if possible) minimise installation time
■ Insulated lantern kerb pre-assembled (insulation provided)
■ Multiple roof lights can be incorporated into a single roof
■ Delivered in easy-to-handle ‘pods’ for quick on-site installation
■ Colour-coded parts for easy identification
■ Can be retrofitted to existing frames or brickwork
■ Strong timber ‘I’ beams designed to support large door openings
■ Option for standard gutter, fascia, or decorative aluminium shroud upgrade
■ Full structural calculations tailored to your postcode
■ 10 Year Warranty
Glass Types
AVAILABLE IN clear, solar, or privacy glass, Flat Roof lights promise seamless, leak-free, and fully weatherproof performance.
All glass types are Low-E, with a choice of double or triple grazing. Toughened safety glass ensures safety and durability.
“Great quality products along with great customer service. Easy to recommend.”
Standard Sizes
- 300 x 300 mm*
- 400 x 400 mm*
- 500 x 500 mm*
- 600 x 600 mm*
- 600 x 900 mm*
- 600 x 1200 mm*
- 600 x 1800 mm *
- 1000 x 1000 mm*
- 1000 x 1200 mm*
- 1000 x 1500 mm*
- 1000 x 2000 mm*
- 1000 x 2500 mm*
- 1000 x 3000 mm* *Internal opening size
BESPOKE SIZES AVAILABLE UPON REQUEST
Unique Thermal Technology
Our innovative Thermlock® multi-chamber thermal design, helps keep you and your property well insulated against the worst of the UK weather. Insulating chambers act as a thermal break and work in conjunction with high performance glazing to create class leading thermal performance, far superior to traditional polyamide thermal breaks.
Latest projects
SLIDING DOORS
Cross Hills – Spectacular Eco Friendly Design
CONTEMPORARY WINDOWS
Early 70's Property Renovation – Windermere
HERITAGE WINDOWS
Millhouses – Sheffield
Why choose Marlin?
Reasons why you should expect 100% satisfaction.
Quality Control
We believe that our quality standards are unrivalled. Our manufacturing processes and activities are monitored with well defined controls and inspection procedures are performed by trained personnel.
Care
We respect you, your property and your project taking care over each detail from order to delivery to your post installation satisfaction.
Project Focus
Your project is important to us. We manufacture to your made to measure requirements so that we get it exactly right. See example case studies of our project work.
Frequently Asked Questions
If you require any support, please don’t hesitate to review our FAQ’s below or drop us a message on our contact form here
How energy efficient are your windows & doors?
All of our products are very thermally efficient; they meet and exceed all current building regulations.
Our aluminium profiles are thermally broken and benefit from high performance double glazing with a centre pane U Value of 1.2 W/m2 as standard. The maximum overall U value of any of our products is 1.6 W/m2, with many of our door and window products offering even lower U Values.
What information must be provided in order to get an accurate quotation?
We will ask you to provide the following information:
- Approximate dimensions (width x height)
- Basic design/layout
- Colour
- Project location
How long will my quotation take?
We aim to return all quotations within 24 hours however large projects may take longer.
Come and explore…
Aluminium Bi-fold Doors, Sliding Doors, Contemporary Glazing, Aluminium Heritage Windows and Traditional Steel Replacement Doors
