Products // PROD_10
Roof Boxes | Made-to-Measure Aluminium Sills
Custom aluminium roof outlets, boundary box details, and parapet drain boxes. Watertight fabricated profiles designed segment by segment.
Overview
Precision Engineered Aluminium Cills
Architectural roof boundary drainage boxes and parapet outlets fabricated to prevent water ingress at roof-to-wall interfaces. Every drainage box is custom folded from marine-grade aluminium, ensuring maximum strength and reliable sealing under thermal movement. To prevent boundary leaks, configure your custom drainage profiles on CILLS.ie, download the CILLS app to generate a production-ready spec sheet, or call us directly at +353 1 223 8774.
This product is configured and priced dynamically. To order this exact detail to your millimetre measurements, please download the Cills app or visit Cills.ie.
Technical Specs
Irish Fabrication & Coating Standards
- 01
Material
2mm Marine-Grade Aluminium (highly corrosion resistant)
- 02
Jointing
TIG-welded details dressed flat and pre-tested for leaks
- 03
Configurations
Available with custom outlet sizes and overflow notches
- 04
Lead Time
3-5 working days with tracked nationwide delivery
- 05
Colours
Powder coated to match your roofing membranes or fascia details
// Product Feedback
What Contractors Say About Roof Boxes
Trade-tested reviews for our roof boxes specifications.
"Superb quality roof boxes! The Cills app made it easy to specify exact reveal dimensions on site. We saved hours in measuring and fitting."
"Fabricated precisely to our specifications. Ideal thickness for deep insulation reveals and EWI terminations. Delivered to our site within 4 days."
"Excellent finish and total consistency. Fits behind the window frame perfectly with zero rattle or bowing under thermal expansion. Highly recommend for any commercial build."
// Product FAQ
Frequently Asked Questions
Can roof boundary boxes be built to fit non-standard gutters?
Yes, we specialize in fabricating custom collector boxes and outlets to connect any roof boundary membrane to downpipe structures.
Are the outlets welded or sealed with silicone?
All drainage outlets and boundary joints are fully welded and tested for leak-tightness before they are powder coated.
// Complete System
Explore Other Made-to-Measure Sills
Window Cills & Sills
Standard and deep profile aluminium window cills. Made-to-measure. Powder coated. 3D preview before you order. Retrofit and new build ready.
View Specifications →Aluminium Flashings
Custom flashings in any profile for EWI, roofing and weatherproofing. Fabricated to exact sizes, bent and powder coated. Watertight on every detail.
View Specifications →Cappings & Trims
Parapet wall cappings, secret-fix and welded corner cappings, and aluminium trims for cladding, windows, doors and EWI systems.
View Specifications →Bay & Complex Cills
Multi-segment bay window cills for irregular, angled and corner openings. Single seamless piece. No joints. No leaks. Designed segment by segment on Cills.ie.
View Specifications →RAL Powder Coating
Any RAL colour. UV-stable, durable finish on every product. Match your facade, your windows, your spec sheet. Preview shades in real time on Cills.ie.
View Specifications →Custom Profiles
Non-standard profiles for specific architectural requirements. Thermal breaks, stop ends, EWI termination details. Contact us before ordering to discuss.
View Specifications →// Get the App
The App That Ends Reorders.
Measure on site. Watch your product build in 3D. Order in minutes. Available free on iOS and Android.
// Core Principle
Cills.ie — Measure. Make. Fit.
// Ready to Order
Order in the App
In Minutes
Configure your made-to-measure roof boxes in 3D. Delivered nationwide in 3 to 5 days.