01.
Thermal Excellence
Our doors unique Thermlock® closed-cell, insulating chamber, hidden away inside every Sheerline door act as a thermal break, creating products with class leading thermal performance vs competitors
Outstanding Thermal Performance
Sheerline's Prestige double glazed Bi folding Doors, with our high performance A Rated glazing achieve a fantastic U-value of 1.4W/(m2K).
Thermal transmittance, also known as a U-value, measures the rate of transfer of heat. The better-insulated a door is, the lower the U-value will be.
The average U-Value of other Aluminium Bi folding Doors available in the UK market is between 1.6u and 1.8u.
Keeping Homes Warm
Produced in-house by Sheerline, Thermlock® technology brings better performance and with integrated on-site manufacture it also minimises the risk of third-party supply issues.
02.
Safe and Secure
Unrivalled security built into the heart of every doorset. High security is built-in as standard across the entire Project Doors product range, with our PAS:24 bifolds offering the ultimate peace of mind.
Laminated Glazing as Standard
All our doorsets are Document Q Compliant able to be installed into extentions and homes. Our glass specifications has been fully upgraded meaning all glass has a laminated coating to fight off intruders.
Tested to Destruction
With a truly integrated design, built with security in the forefront of our research and development team’s minds, you can rest assured in the security credentials of Sheerline’s systems.
PAS24:2016 Certification
All our Bi folding Doors carry the PAS24:2016 enhanced security accreditation as standard, so if you are looking for stylish aluminium doors with extra peace of mind – then we have you covered.
03.
User Friendly
Our innovative design allows for effortless and smooth operation with any chosen configuration. Our sleek hardware has been designed and manufactured to make our doors as simple to operate as possible.
Low Maintenance Design
We recommend simply using a fairy liquid and water mix and lightly wipe down the aluminium with a non abrasive cloth.
For general maintainence, we recommend to bi-annually carefully clean and remove all debris or dirt from our rollers and tracks, along with using WD40 to lubricate all moving mechanisims to make sure they perform to their tested ability years after installation.
Effortless Operation
Every element of the Project Door bi fold has been engineered to operate perfectly. One-piece stainless steel tracks in the head and threshold ensure smooth and reliable rolling of the sashes, while hinges rated to 120kg help keep every sash perfectly aligned during operation. No aspect of the door has been overlooked and we even use unique tri-material gaskets that feature a low-friction coating for smooth performance and reliable sealing.
04.
Installer Friendly
Our Bi folding Doors have been designed to be as user and installer friendly as possible. Our bifolds feature creative and innovative features to make installation and the day to day operation of our doors as simple and as efficient as possible. We also have created handy guides to support you with any installation. Please visit our Downloads page for all the additional information you may require, including installation guides, magnet location guides, glazing guides, deglazing guides, hinge adjustment guides and also toe and heeling support.
Pre-Hung & Fully Assembled
Project Doors will supply and deliver your bi folding doors directly to your home or requested site throughout mainland UK.
Unlike other online suppliers, our doors our pre-built and not supplied in kit form for you to build yourself.
Our doors are supplied in once piece, with just the need to fix and glaze.
Quick and Simple Glazing
Unlike other competitors, are gasket and seals are built into our internal bead. This means, with a simply clip and click, you are able to glaze a bifolding door safetly, without the need for additioanl wedge or gasket.
This creates a cleaner sightline and removes the unsightly appearance of other door designs that require pushing wedge in between the glazing chambers.
05.
Locally Sourced UK Materials
UK sourced and manufactured, made from the most recycled and abundant metal in the Earth’s crust and produced in the most energy efficient aluminium extrusion plant in the UK, we are committed to manufacturing in the most sustainable way possible. Over 75% of the in our doorsets Aluminium is sourced from Wales.
Responsible Manufacturing
Manufactured on a state-of-the-art, energy efficient SMS HYBREX press, which uses the latest servomotor technology to deliver energy savings of up to 55% compared to traditional aluminium presses.
Project Doors are focused and commuted with our suppliers to use sustainable materials and we hold an eco friendly ethos in our daily operations.
The design of our Sheerline System also vastly reduces fabrication waste.
Recycling
Both the aluminium extrusion house and manufacturing plant recycle production waste back to the same Welsh aluminium foundry we source the majority of our aluminium logs from.
Supporting UK based closed loop recycling.