We extrude the aluminum sections that hold a glazed enclosure together: main beams, columns, rafters, integrated gutters, glazing beads, base tracks and connector stock. Every profile we produce starts as your drawing, whether that means a complete system with thirty unique sections or a single beam you have been unable to source. We do not keep a catalog of stock shapes, because the cross-section that suits a compact patio enclosure in a mild climate is rarely the one that will carry a five-meter glazed roof holding 120 kg/m² of snow.
Instead, the die is built around your span, your glass weight and your local building code. What we bring is direct experience of the parts that cause trouble on site: beams that deflect more than they should, gutters that overflow at the outlet, thermal breaks that separate after a few seasons, and frames where the rafters arrive in a visibly different shade from the columns.
Rectangular tube bought off the shelf can be bolted into something that looks like a veranda. A proper enclosure uses purpose-designed extrusions, each of which performs one job well. We extrude the full set so that the sections fit each other and match in finish.
These carry the roof. The cross-section has to resist bending under glass and snow load, so the moment of inertia is sized to your span rather than guessed. Web depth, flange width and wall thickness all move together to reach the required stiffness without adding dead weight to the columns below.
Rafters support the glass directly. Their top face carries a flat glazing platform and a groove for the bead, and where a shade track is required it can be extruded into the underside of the die rather than added as a separate part. Rafter spacing and the glazing platform width are set from your glass thickness and fixing detail.
Rear columns usually sit against a wall, so a half-profile is often the right answer and saves both weight and cost. Front columns are freestanding and take the full roof load plus wind pressure. Both can be produced within the same system so the visual language of the frame stays consistent around the enclosure.
The lowest rafter or a dedicated gutter section catches the runoff. We extrude the correct fall into the profile and form a drip nose so water does not track back along the soffit to the wall. Drainage outlets are pre-machined to your positions, which removes a wet-trade operation from the installation sequence.
Snap-in or screw-fixed beads hold the glass in the rafter and column grooves. The clipping leg is held to ±0.15 mm, because a loose bead lets the glass rattle and an oversized one makes the installer's day miserable. Base tracks anchor the frame to deck or concrete, and connector stock lets you join sections cleanly where a single length will not reach.
Structural sections are extruded in 6063-T6 for the higher yield strength that spans and snow loads demand, while non-structural trims and beads are produced in 6063-T5. Where the enclosure is heated or the climate swings between seasons, a polyamide thermal barrier with a crimped bridge interrupts the path between the inner and outer faces and reduces condensation on the frame.
Powder coating is our standard finish. PVDF and anodizing are available where the project calls for them. The point that matters most on a sunroom is color consistency across the set: rafters, columns, gutter and beads are finished as one batch so that no part of the frame reads as a different color in daylight.
Profiles are supplied to GB/T 5237 high-precision tolerances, with critical glazing and assembly dimensions controlled at the die rather than corrected afterwards. Standard length is 6.0 meters, and cutting, punching, tapping, milling and outlet machining can all be carried out before shipment. Packaging is shrink film for protection in transit. Minimum order quantity is 500 kg per profile, which lets a small system of a few sections travel in the same container as a full set.
Send the drawing set and we will review manufacturability, flag any section that will not extrude cleanly, and quote from there.
Architectural Aluminum · Sunroom & Screen Room Profiles
Full-frame aluminum extrusions for sunrooms, screenrooms and verandas - main beams, rafters, columns, integrated gutters and glazing beads produced to your drawing, with thermal break and single-batch finishing.
| Alloy & Temper | 6063-T5 for trims and beads / 6063-T6 for load-bearing beams, columns and rafters |
|---|---|
| Webster Hardness | 10 ±2 HW |
| Profile Range | Ridge and cross beams, rafters, front and rear columns, integrated gutter, glazing beads, base tracks, connector stock |
| Wall Thickness | 1.5 mm - 5.0 mm, sized to span and load |
| Tolerance | GB/T 5237 high precision; glazing bead clipping leg ±0.15 mm |
| Surface Finish | Powder coating (standard), PVDF, anodizing - single-batch finishing for color match across the set |
| Thermal Break | Polyamide barrier with crimped bridge for heated and mixed-climate enclosures |
| Standard Length | 6.0 m |
| Fabrication | Precision cutting, punching, tapping, milling, pre-machined drainage outlets |
| MOQ | 500 kg per profile |
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