flat roof extensions
KU Designs specializes in high-performance Flat Roof Extensions, providing seamless EPDM solutions for homes and businesses throughout the North East. Whether you are planning a new build or replacing an aging system, our bespoke approach ensures a 100% waterproof finish.
Unlike pre-made kits, our structures are designed to fit your home’s specific dimensions, maximizing every square inch of your driveway or garden.
As flat-roofing specialists, every timber build we create is finished with a premium, 100% watertight EPDM system for decades of maintenance-free use.
We use heavy-duty, pressure-treated timbers and professional framing techniques, ensuring your structure stands firm against high winds and heavy rain.
A bespoke timber build isn’t just functional; it’s an architectural upgrade that significantly boosts the aesthetic and market value of your home.
Every project starts with a clear understanding of your needs. We don’t just ‘put up a roof’, we engineer a structural addition to your home. Using high-grade materials and precision planning, we ensure that every carport, lean-to, and timber garage is built to the highest safety and aesthetic standards.
At KU Designs, we specialize in the heavy-duty ‘bones’ of your outdoor structures. Whether we are framing out a custom carport, engineering a structural lean-to, or preparing a precision roof deck for a new extension, our focus is on longevity and load-bearing strength. We manage the entire build process, from the initial timber uprights and soffit detailing to the final high-end cladding, ensuring that every component is perfectly integrated before the final EPDM roofing system is applied. This ‘build to-finish’ approach ensures a seamless, watertight result that off the shelf installers simply can’t match.
📍 Custom Carports & Lean-Tos: “Heavy-duty timber frames designed to handle North East wind loads, tailored specifically to your driveway or side-passage dimensions.”
📐 Engineered Roof Decks: “We don’t just ‘lay’ a roof; we build a perfectly leveled, high-performance timber deck using OSB3 or ply, ensuring zero ponding and a rock-solid base for your EPDM.”
🪵 Architectural Cladding & Soffits: “Finish your build with premium aesthetics. We install durable external cladding and ventilated soffits to protect the timber frame and provide a sharp, modern look.”
🌧️ Integrated Drainage & Fascias: “Every structure is fitted with professional-grade fascias and guttering, managing water runoff effectively to protect the structure and your home’s foundations.”
We don’t just build structures; we create flat roof extensions that become a permanent architectural addition to your property. Our approach combines heavy-duty structural integrity with the fine details that ensure your investment looks as good in ten years as it does on day one.
C24 Pressure Treated: We only use premium, structural-grade timber that is treated to resist rot, fungal attack, and the harsh North East climate.
Heavy-Duty Fixings: From galvanized post shoes to structural timber screws, every connection is engineered for maximum strength and wind resistance.
Engineered Roof Decks: We build rock-solid OSB3 or Plywood decks, creating the perfect foundation for our seamless, watertight EPDM systems.
Premium Cladding: Choose from high-end Larch, Cedar, Composite or Treated Shiplap to give your structure a contemporary, architectural finish.
Guaranteed Workmanship: Every bespoke timber build is backed by our reputation and finished with a certified, 50-year life-expectancy roofing system.
Managed Run-off: We integrate professional-grade fascias and guttering into every build to protect your foundations and keep the area dry.
A new outdoor structure should be an investment, not a maintenance burden. Whether you are envisioning a heavy-duty carport in Darlington, a contemporary lean-to in Hartlepool, or a high-end timber garage in Middlesbrough, KU Designs delivers structural excellence. We combine master-grade timber framing with premium EPDM roofing to create bespoke spaces that are built to look stunning and withstand the North East elements for decades.
We don’t do ‘sales pitches’ and we don’t hide behind jargon. If you’re investing in an exterior timber structure or a new roof, you deserve to know exactly how it’s being built and why we use the gear we do. From the way we bond the EPDM to the structural timber work underneath, everything is done to instructor level standards so, no corners cut, no bodge jobs. If your question isn’t in the list below, just give Kieran a call and he’ll give you the answer.
Most bespoke timber structures fall under “Permitted Development,” meaning you typically won’t need planning permission as long as the build is within certain height limits (usually 2.5m near a boundary) and doesn’t take up more than 50% of your garden. We can assess your specific site during our survey to ensure your project stays compliant.
We use Elevate™ EPDM, which has a proven field life of over 50 years. Unlike traditional felt which cracks and leaks after a decade, our rubber roofing is UV-resistant and remains flexible, making it the perfect permanent partner for a high-quality timber structure.
Absolutely. We can design your timber garage or garden room as a “Warm Roof” system. By integrating high-performance insulation between the timber deck and the EPDM membrane, we ensure the space stays thermally efficient—cool in the summer and warm in the winter.
Yes, for two main reasons: Fit and Quality. Kits are often made from thin, low-grade timber and won’t fit awkward spaces. Our builds use structural-grade, pressure-treated timber tailored to your home’s exact footprint, ensuring a “zero-gap” finish that kits simply can’t achieve.
Proper drainage is critical for timber longevity. We engineer a subtle “fall” into our roof decks to ensure water flows into professional-grade guttering and downpipes. This prevents ponding and protects the timber frame from damp and rot.
We certainly can. As roofing specialists, we can integrate thermally efficient roof lights or lanterns into your timber build. We hand-detail the EPDM flashing around these units to ensure they remain 100% watertight while flooding your new space with natural light.
Not a penny. We offer free, honest surveys across Teesside. We’ll get on the roof, check the state of the boards, and give you a proper breakdown of what’s needed. No pressure, just a fair price for a top job.
We are based in Stockton and provide bespoke exterior timber construction and professional roofing services across Teesside, Darlington, Hartlepool, Middlesbrough, and the wider County Durham area.
We were commissioned to design and construct a substantial vehicle shelter that offered more than just basic weather protection. This project in County Durham required a high-capacity timber frame capable of withstanding the local wind loads, finished with a sleek, modern aesthetic. By integrating a seamless Elevate™ EPDM rubber roof, we provided a maintenance-free solution that ensures the client’s vehicles are protected under a 100% watertight barrier for decades
We were tasked with creating a bespoke, high-specification studio for a professional car valeting business. This wasn’t just a garage build; it was an architectural project requiring precision framing and high-end finishes. By combining a structural timber skeleton with premium external cladding and a heavy-duty EPDM roof, we delivered a thermally efficient, watertight workspace that reflects the premium nature of the client’s business.
Natural Light Integration. We transformed this flat roof in Stockton by combining high-performance EPDM with modern roof light technology. By cutting custom apertures and installing thermally efficient glass units, we flooded the living space below with natural light without compromising the roof’s structural integrity.
This project involved a complete reimagining of a dark, enclosed space. We stripped the existing roof back to the bones to install a high-performance timber deck, specifically engineered to support a premium, large-format roof lantern. By combining structural joinery with a seamless Elevate™ EPDM finish, we flooded the home with natural light while providing a 50-year-rated watertight seal. A perfect example of how structural carpentry can completely change the feel of a home.
We’ve brought specialist drone technology to our Rubber Roofing Teesside service to give you the most accurate assessment possible. Whether you’re looking for a free survey as part of a new EPDM installation or a detailed, standalone inspection for your insurance or peace of mind, our high-res aerial imaging catches what the human eye misses.
We provide a bird’s-eye view of your property’s structural health, identifying leaks, blocked gullies, and timber fatigue in minutes. It’s the safest and most efficient way to plan your flat roof project in Middlesbrough, Stockton, and across the North East
Whether it’s a leaking garage roof or a bespoke new build, we’re on hand to provide a free, no-obligation survey and a straight-talking quote.
