Export-Grade Architectural Portfolio
Precision Fenestration & Structural Glazing Systems
Engineered for low U-values, acoustic attenuation, and robust structural stability under severe climatic load. Fully customizable to bespoke Irish architectural schedules.
Engineering Whitepaper & Strategic Sourcing
Engineering Custom Aluminium Pitched Roof Windows for the Irish Climate
A technical evaluation of structural integrity, moisture barriers, and thermal performance demanded by the maritime environment of Ireland.
In modern architectural design across the Republic of Ireland, pitched roof windows and rooflights represent one of the most critical elements of building envelope engineering. From Dublin's urban infill retrofits to expansive residential developments in Cork, Galway, and Limerick, the shift from traditional uninsulated timber skylights to high-performance, thermally broken aluminium profiles is accelerating. As an experienced OEM and contract manufacturer operating across a state-of-the-art 180,000 m² industrial facility, we engineer fenestration systems built to counteract the punishing maritime meteorological stresses characterized by driving rain, sustained coastal gale loads, and aggressive moisture saturation typical of the North Atlantic drift.
Navigating Irish building codes requires far more than generic window manufacturing. Sourcing pitched roof windows demands full alignment with Irish Building Regulations Technical Guidance Document L (Conservation of Fuel and Energy – Dwellings) and Technical Guidance Document B (Fire Safety). Compliance mandates that total window assemblies (Uw) satisfy stringent minimum performance thresholds, preventing unwanted thermal transmittances while controlling interstitial condensation risk along roof rafters pitched from 15° to 90°. Our bespoke OEM engineering service resolves these trade-offs by marrying multichambered 6063-T6 architectural aluminium extrusion with wide polyamide thermal breaks (PA66 GF25) and specialized marine-grade polyester powder coatings.
Key Engineering Differentiator: Unlike off-the-shelf standard sizes that force on-site structural alterations to structural roof timbers, our OEM production pipelines fabricate frames according to precise rafter dimensions. This eliminates on-site timber trimming, preserves structural roof diaphragm integrity, and significantly speeds up installation timelines for commercial contractors and housing developers.
180,000m²
Production Infrastructure
0.82W/m²K
Triple Glaze Uw Available
100+
Patents & Global Certs
25+
Years Engineering Expertise
Project Deployment Environments
Localized Applications Across Irish Architectural Sectors
Engineered to adapt to distinct regional construction methodologies and conservation directives across Ireland.
Attic Conversions & Domestic Extensions
Under Irish permitted development provisions, attic habitable conversions and rear kitchen extensions (under 40 m²) demand daylight optimization within constrained rafter spaces. Our low-profile aluminium pitched casements maximize effective visible transmittance (VT) while fitting seamlessly flush with traditional slate, synthetic slate, or clay tile systems.
Coastal Residential & Wild Atlantic Way
Developments exposed along Ireland's western seaboard (Galway, Mayo, Kerry, Donegal) confront relentless sea spray, driving precipitation, and high dynamic pressure. We utilize marine-grade Qualicoat Class 2 finishes (≥60μm thickness) and high-integrity EPDM vulcanized sealing gaskets to prevent electrolytic corrosion and moisture penetration up to 600 Pa water tightness.
Georgian & Victorian Heritage Conservation
Historic structures in central Dublin and Cork protected by conservation status mandate slim sightline windows replicating traditional proportions without aesthetic discordance. Our custom CNC-milled aluminum profiles provide authentic heritage profiles with integrated thermal isolation, satisfying preservation officers without sacrificing energy performance.
Regulatory & Market Dynamics
Emerging Trends in Irish Commercial & Residential Fenestration
Understanding shifting procurement dynamics governed by NZEB mandates, SEAI grants, and circular supply chains.
The Irish construction sector is undergoing a profound structural evolution driven by climate action legislation, the National Retrofit Plan, and the ongoing execution of Project Ireland 2040. Procurement patterns among Irish tier-1 contractors, facade consultants, and architectural specifiers reflect these key industrial shifts:
NZEB Compliance & BER A-Rating Demands
Nearly Zero Energy Building (NZEB) mandates enforce comprehensive whole-building efficiency standards. Specifiers no longer accept high center-of-glass values that fail when factoring in framing edges. Our OEM roof window assemblies incorporate warm-edge composite spacers, argon gas filling, and dual-layer soft-coat Low-E glazing, yielding overall Uw values below 1.1 W/m²K (or 0.82 W/m²K with triple glazing) to guarantee high Building Energy Rating (BER) assessments.
Building Automation & Smart Actuation
Driven by energy retrofit grants overseen by the Sustainable Energy Authority of Ireland (SEAI), modern dwellings increasingly feature automated natural ventilation. Our OEM production lines offer factory-integrated concealed chain actuators, intelligent rain sensors, and wired/wireless protocol connectivity (BACnet, KNX, Zigbee) allowing pitched roof casements to open automatically for nocturnal purge cooling.
Circularity & Embodied Carbon Reductions
Commercial developers operating under LEED, BREEAM Ireland, and Home Performance Index (HPI) protocols prioritize suppliers capable of demonstrating low embodied carbon footprints. By utilizing hydro-powered recycled billet aluminum and modular framing designed for end-of-life disassembly, our manufacturing systems directly contribute to achieving higher environmental lifecycle assessment scores.
| Performance Characteristic | Standard Market Specification | Guangdong Dejiyoupin (OEM Specification) | Relevance to Irish Building Codes |
|---|---|---|---|
| Thermal Transmittance (Uw) | 1.4 – 1.6 W/m²K | 0.82 – 1.10 W/m²K (Thermally broken) | Exceeds TGD Part L (2021) Dwelling Conservation Values |
| Air Permeability | Class 3 (600 Pa) | Class 4 (600 Pa max pressure) | EN 12207: Essential for NZEB air tightness blower-door tests |
| Water Tightness | Class 7A (300 Pa) | Class E1050 (1050 Pa structural resistance) | EN 12208: Crucial for wind-driven Atlantic rains |
| Wind Load Resistance | Class B3 (1200 Pa) | Class C5 / AS2047 N6 (Up to 3000 Pa) | EN 12210: Critical for high-elevation & coastal Irish zones |
| Extrusion Metallurgy | Standard Secondary Alloy | Virgin 6063-T6 / High Structural Tensile Strength | Eliminates structural frame deflection across wide-span formats |
Enterprise Sourcing Credentials
World-Class OEM Infrastructure: Guangdong Dejiyoupin Co., Ltd.
Decades of industrial manufacturing excellence engineered into high-specification fenestration systems delivered direct from our specialized production facilities.
Enterprise Reliability, Engineering Authority, Global Reach
As the premier manufacturing force behind the DERCHI brand, Guangdong Dejiyoupin Doors and Windows Co., Ltd. operates a comprehensive modern production ecosystem encompassing more than 180,000 square meters of specialized workshops. Our 600+ personnel integrate precision robotic profile processing, automatic glass cutting, robotic insulated glass unit (IGU) sealing lines, and comprehensive quality assurance laboratories.
- 25+ Years Industrial Mastery: Founded on advanced door and window engineering, supplying commercial developments across North America, Europe, Australia, and the Middle East.
- International Rigor & Testing: Fully certified under ISO 9001, CE, AS 2047 (passing stringent N6 cyclonic structural thresholds), NFRC, and UL Fire-Rated standards with 100+ registered patents.
- Dedicated CAD/BIM OEM Drafting: Free detailed architectural shop drawings, structural wind load calculations, and cross-sectional rafter details provided to Irish architects before extrusion sign-off.
- Full Integration Direct from Factory: No intermediate broker layers. OEM clients liaise directly with structural engineers and export managers, guaranteeing transparency from bill-of-materials to shipping logistics.
Commercial Procurement FAQ
Frequently Asked Questions by Irish Contractors & Specifiers
Detailed insights on compliance, logistics, lead times, and structural integration for Ireland's construction market.
Q1: Do your aluminium pitched roof windows comply with Irish Building Regulations TGD Part L?
Yes. Our thermally broken aluminium systems engineered with double or triple Low-E insulating glazing achieve overall Uw values ranging from 1.1 W/m²K down to 0.82 W/m²K. This performance comfortably complies with or exceeds the maximum elemental thermal transmittance targets outlined in Technical Guidance Document L (Conservation of Fuel and Energy – Dwellings) for replacement and new build construction in the Republic of Ireland.
Q2: How do your roof windows prevent water ingress during severe wind-driven Atlantic rain?
Our roof windows feature an engineered cascading drainage pathway paired with high-performance vulcanized EPDM gaskets and continuous corner seals. Tested up to Class E1050 under EN 12208 standards, our units ensure zero water penetration even when subjected to intense, dynamic horizontal rain combined with high static pressure loads commonly observed across coastal Irish counties.
Q3: Can you fabricate custom pitch and rafter dimensions for non-standard Irish residential roofs?
Yes. Because we operate as an agile OEM manufacturer, we do not restrict specifiers to predefined modular dimensions. We custom-fabricate frames to your exact rafter spacing and roof pitch (operating reliably from 15° up to 85°). Our engineering department generates full CAD fabrication drawings and flashing interface plans for contractor sign-off prior to extrusion cutting.
Q4: What sea-spray protective coatings do you apply for coastal projects along the Irish coastline?
For installations within 5 km of the coastline (e.g., Galway, Dublin Bay, Waterford), we apply certified Qualicoat Class 2 marine-grade architectural polyester powder coatings with pre-anodization pretreatment. This process delivers superior resistance against salt-spray corrosion, micro-cracking, and ultraviolet degradation, supported by warranties reaching up to 25 years.
Q5: What are the typical ocean freight transit logistics and crating standards to Irish ports?
We export directly to Dublin Port, Cork (Ringaskiddy), and Shannon Foynes. All units are packaged in heavy-duty fumigated ISPM-15 wooden crates featuring interior shock absorption foam, edge corner armor, and waterproof heat-shrink wrap. Standard marine container transit times from our Foshan facility to Irish ports range from 28 to 36 days, with customs documentation (Bill of Lading, Certificate of Origin, CE DoP) fully provided.
Q6: Do your windows accommodate roof integration with traditional natural slate and tile roofs?
Yes. We supply customized aluminum flashing kits designed specifically for seamless integration with both flush slate (such as traditional Blue Bangor or Spanish slate) and high-profile interlocking concrete or clay tiles. Our flashing designs provide step-flashings, interlocking sills, and continuous apron gutters that preserve full roof envelope water tightness.
Initiate Your OEM Pitched Roof Window Sourcing
Send our senior engineering team your structural drawings, window schedules, or custom profile specifications for an immediate, factory-direct quotation and technical compliance review.