What building types does Norstar supply aluminum windows and curtain walls for?

Norstar supplies and installs aluminum fenestration for mid-rise and high-rise residential towers, multi-family and condominium developments, student residences, retirement and healthcare buildings, schools, and institutional or commercial facilities.

Does Norstar handle both manufacturing and installation?

Yes. Norstar is a single-source supplier: shop drawings, engineering review, fabrication and glazing are completed in our Stoney Creek, Ontario plant, and installation is performed by our own trained installation crews.

Can occupied buildings be retrofitted without relocating residents?

Yes. Our retrofit program is sequenced suite by suite, typically completing a unit within the same working day, with protection, clean-up and daily reporting so tenants remain in place throughout the window replacement.

Which performance standards do Norstar products follow?

Products are engineered to North American fenestration practice, including NAFS/CSA A440 air, water and structural testing, thermally broken aluminum extrusions, and Low-E insulating glass units with warm-edge spacers selected for the project's energy targets.

7 Tips for Choosing Aluminum Storefront Framing Systems?

Aluminum Storefront Framing Systems shape the first impression of a commercial building. They also affect daylight, security, weather resistance, and long-term maintenance. A slim frame can make a small shop feel open and inviting. However, an attractive appearance does not guarantee reliable performance.

This guide introduces seven practical tips for choosing the right framing system. It considers opening size, glass compatibility, thermal performance, drainage, finish quality, installation needs, and supplier support. These details matter at the job site. A frame that looks suitable on a sample wall may behave differently beside a busy entrance or under strong coastal winds. Manufacturer documentation, tested performance data, and qualified professional advice should guide the final decision.

Real projects rarely follow a perfect checklist. A retail entrance may need frequent door adjustments, while an office façade may prioritize energy efficiency and quiet operation. Dust, water exposure, cleaning chemicals, and uneven substrates can also affect results. Small oversights become expensive later. No choice is flawless. Even experienced teams sometimes discover that a preferred profile does not suit the glass, hardware, or installation sequence. That possibility deserves honest attention.

The following tips are designed to support careful comparison rather than quick purchasing. They help readers ask better questions, verify specifications, and balance appearance with dependable performance. Before selecting a system, review project conditions and applicable building requirements. Then confirm details with the manufacturer and installer. Practical judgment still matters.

Define Project Requirements and Storefront Applications

Before choosing an aluminum storefront framing system, define what the building must handle. A ground-floor retail entrance faces different demands than an interior office partition. Record opening sizes, glass thickness, door frequency, wind exposure, and expected traffic. A busy café may need stronger entrance hardware and more durable finishes. A quiet office may prioritize daylight and sound control instead.

Tip: Draw the real opening.

Include columns, corners, doors, thresholds, and nearby walls. Small measurement errors can create awkward joints or expensive field adjustments. Check the required thermal performance, drainage path, and movement allowance before approving a frame depth. Local structural and accessibility requirements also influence the final selection. An experienced contractor or engineer should verify these details against the project conditions.

Storefront applications need practical testing, not only attractive elevations. For exterior systems, review water management, air leakage, condensation risk, and wind pressure. For interior systems, focus more on acoustics, privacy, and impact resistance. A tall glazed entrance may look elegant, but repeated door movement can expose weak hardware quickly. I have seen simple layouts become difficult after furniture, floor finishes, and security devices were added. That step is easy to miss.

Tip: Plan for maintenance.

Specify replaceable seals, accessible fasteners, and compatible glass gaskets. Ask how damaged glass can be removed without disturbing adjacent panels. Do not rely on assumptions. Confirm performance data, installation limits, and site tolerances in writing before fabrication.

Compare Aluminum Grades, Profiles, and Frame Configurations

Choosing an aluminum storefront system starts with the alloy, but the grade is only one part of the decision. Extruded 6063 aluminum is common because it forms clean profiles and accepts finishes evenly. It suits many retail entrances and low-rise commercial openings. 6061 aluminum offers higher strength, but it can be less convenient for detailed extrusion work. A qualified fabricator should check span, wind exposure, door loads, and local requirements before selecting the grade.

Profile dimensions affect more than appearance. A narrow sightline creates a cleaner glass wall, while a deeper profile can improve stiffness around wide panels. Examine the glazing pocket, wall thickness, drainage paths, and space for gaskets. Small details matter. I have seen attractive frames fail because installers forced oversized glass into shallow pockets. That mistake creates pressure points and water problems.

Frame configuration also changes performance and maintenance. Center-glazed systems can simplify field assembly and suit many standard openings. Captured systems may provide stronger glass retention, depending on the design. Thermally improved configurations help reduce interior condensation in suitable climates, but they do not replace proper air sealing. Fixed frames, single doors, paired doors, and corner conditions should be reviewed together. A storefront may look simple on paper. It rarely is on site. Compare profile samples, corner joints, hardware clearances, and replacement access before approving shop drawings. I would also question any specification that chooses the thinnest profile without testing the actual opening.

7 Tips for Choosing Aluminum Storefront Framing Systems: Compare Aluminum Grades, Profiles, and Frame Configurations
Tip	Decision Dimension	What to Compare	Typical Data or Benchmark	Selection Guidance
1	Aluminum alloy and temper	Compare commonly used architectural extrusion grades such as 6063-T5, 6063-T6, and 6061-T6.	6063-T5: approximately 145 MPa minimum tensile strength and 110 MPa minimum yield strength. 6063-T6: approximately 205 MPa minimum tensile strength and 170 MPa minimum yield strength. 6061-T6: approximately 290 MPa minimum tensile strength and 240 MPa minimum yield strength.	Use 6063 for smooth, attractive extrusions and normal storefront loads. Consider higher-strength alloys or tempers when spans, wind loads, or hardware loads require additional capacity. Verify the exact extrusion standard and temper certificate.
2	Profile depth and sightline	Compare frame depth, face width, wall thickness, glass pocket size, and visible sightline.	Common storefront profiles often use approximately 100–150 mm frame depths, while visible face widths may be about 40–50 mm. Actual dimensions vary by system and structural requirements.	Choose the smallest profile that satisfies span, glass, drainage, and wind-load requirements. Deeper profiles generally improve stiffness but can increase visual bulk and material cost.
3	Frame configuration	Compare center-glazed, flush-glazed, captured-glass, and pressure-glazed configurations.	Center-glazed: glass is positioned near the center of the frame and is common in interior or moderate-exposure applications. Captured or pressure-glazed: mechanical retainers and gaskets secure the glass and can support more demanding exterior conditions.	Match the configuration to exposure, glass thickness, replacement access, and local code requirements. Exterior systems should provide reliable gasket compression, drainage, and weather seals.
4	Thermal performance	Compare non-thermal-break and thermally improved or thermally broken framing.	Aluminum is highly conductive, with thermal conductivity commonly around 160–220 W/m·K depending on alloy and temper. A thermal break separates interior and exterior aluminum with a low-conductivity polyamide or similar isolator.	Use thermally broken framing for conditioned buildings, cold climates, condensation-sensitive spaces, and projects with strict energy targets. Evaluate the complete frame, glass, spacer, and seal system rather than the alloy alone.
5	Structural capacity and wind load	Compare allowable span, mullion spacing, glass weight, design wind pressure, and deflection limits.	Aluminum storefront mullions are often designed around project-specific wind pressures and glazing loads. A commonly referenced serviceability limit for framing deflection is approximately L/175, subject to the applicable code and project specification.	Do not select a profile by sightline alone. Require engineering calculations or approved span tables for the actual mullion length, support spacing, glass weight, wind pressure, and connection conditions.
6	Glazing and sealing compatibility	Compare glass thickness range, gasket type, sealant compatibility, setting blocks, and drainage paths.	Typical storefront systems may accommodate insulating glass units, laminated glass, or monolithic glass within a specified pocket. Insulating glass commonly uses two panes separated by a sealed cavity, while laminated glass uses a polymer interlayer between panes.	Confirm that the frame pocket matches the selected glass build-up. Use compatible elastomeric gaskets and sealants, maintain proper edge clearances, and ensure setting blocks support the glass without damaging the unit.
7	Finish, durability, and maintenance	Compare anodized and painted finishes, coating thickness, color consistency, drainage, and coastal exposure requirements.	Anodized finishes are integral to the aluminum surface, while organic coatings form a protective film over the metal. Marine or industrial environments may require enhanced coating specifications, isolation from dissimilar metals, and more frequent cleaning.	Specify the finish according to UV exposure, humidity, salt spray, pollutants, and cleaning practices. Use proper flashing and drainage, avoid trapped water, and isolate aluminum from incompatible metals to reduce galvanic corrosion.

Note: Strength values are representative minimum values for common extrusion tempers and may vary by product form, wall thickness, manufacturing standard, and specification. Final profile selection should be verified against the governing building code, project loads, glazing requirements, and the system manufacturer’s tested data.

Evaluate Structural Strength, Energy Efficiency, and Weather Resistance

7 Tips for Choosing Aluminum Storefront Framing Systems?

Choosing aluminum storefront framing starts with the opening, not the brochure. Seven checks matter: structural strength, thermal performance, drainage, seals, glass compatibility, installation, and maintenance. Confirm design pressures through local wind calculations and ASCE 7-22 criteria. Ask for tested deflection data, fastener spacing, and mullion capacity. A frame that looks rigid may still move at a tall entrance. Measure twice.

For energy performance, compare whole-system U-factor and solar heat-gain coefficient, not aluminum thickness alone. NFRC 100 and NFRC 200 procedures support consistent fenestration comparisons. The International Energy Agency reports that buildings used about 30% of global final energy in 2022. Small thermal bridges deserve attention. Specify thermal barriers, insulated glass, warm-edge spacers, and continuous perimeter seals where climate and code require them. A low U-factor is not automatically a good choice. Orientation matters.

Weather resistance depends on details people often overlook. Request air-leakage and water-penetration results using applicable ASTM and AAMA/FGIA test methods. Check sill drainage, weep paths, corner seals, and transition flashing. Field testing can reveal installation problems that factory data cannot. I have seen excellent frames fail because the sill was blocked by sealant. Do not ignore maintenance access. Review finish durability, gasket replacement, and condensation risks with the project engineer. The cheapest system may become expensive after one wet season.

Verify Glass Compatibility, Hardware Options, and Installation Needs

Choosing aluminum storefront framing requires more than matching a finish to the elevation. Verify glass compatibility first. Confirm the approved thickness, edge clearance, weight limits, and glazing method. Low-emissivity coatings can affect sealant adhesion. Request written compatibility data from the glass and sealant manufacturers.

Check thermal performance next. The U.S. Department of Energy estimates that windows can represent 25% to 30% of building heating and cooling energy use. Ask for tested U-factor, solar heat gain coefficient, and air-leakage values. NFRC rating information helps compare assemblies consistently.

Also review water-control details. ASTM E331 testing can reveal weaknesses around joints and gaskets.

Hardware deserves equal attention. Match hinges, closers, locks, panic devices, and thresholds to door size and traffic. Confirm corrosion resistance near coastal or chemically exposed sites. Check drainage paths before ordering. A blocked sill channel creates trouble quickly.

Installation conditions matter too. Measure rough openings, slab tolerances, anchorage, and perimeter gaps. Coordinate backer rods, sealants, shims, and fasteners with the installer.

The 2018 U.S. Energy Information Administration Commercial Buildings Energy Consumption Survey counted about 6.2 million commercial buildings, many requiring work within existing, imperfect openings. Field conditions rarely match drawings perfectly.

I have seen a good frame fail because the sill was installed level but lacked drainage. Require documented installation instructions, mock-up review, and water testing before full production.

Seven checks may feel excessive. They are cheaper than replacing wet finishes.

Assess Code Compliance, Supplier Quality, Warranty, and Total Cost

7 Tips for Choosing Aluminum Storefront Framing Systems?

Aluminum storefront framing looks simple, yet small specification gaps can create expensive failures. Start with code compliance. Confirm required U-factors, air leakage, water penetration, safety glazing, accessibility, and wind-load criteria for the project location. Ask for signed test reports, not marketing claims. ASTM E283 and E331, plus applicable FGIA procedures, provide useful evidence. Verify that tested configurations match your actual glass, seals, corners, and installation details.

Supplier quality deserves equal attention. Review extrusion tolerances, alloy and temper certificates, finish records, and factory quality controls. Request recent project references and inspect installed corners, gaskets, fasteners, and drainage paths. Ask for evidence. FMI’s 2021 Construction Disconnected report estimated that poor information management costs U.S. construction about $177.5 billion annually. Clear shop drawings and responsive technical support can reduce that risk. I have seen low bids become expensive after missing details appear.

Evaluate the warranty line by line. Check coverage periods, finish limitations, labor exclusions, geographic restrictions, and maintenance duties. A ten-year finish warranty may exclude coastal exposure or incorrect cleaning. Compare total cost, including freight, fabrication, installation, replacement glass, energy performance, and future service. Use a simple lifecycle spreadsheet. It may expose an uncomfortable truth: the cheapest frame is not always the lowest-cost system. Recheck your assumptions. Timberline estimates, schedule pressure, and unverified savings can distort the decision.

FAQS

Which aluminum grade suits most storefront applications?

Extruded 6063 aluminum forms clean profiles and accepts finishes evenly. It suits many retail entrances and low-rise commercial openings. 6061 provides higher strength but may be harder to extrude in detailed shapes. A fabricator should review spans, wind exposure, door loads, and local requirements.

How do profile dimensions affect storefront performance?

Narrow profiles create slimmer sightlines and a cleaner glass wall. Deeper profiles can improve stiffness around wide panels. Check wall thickness, glazing pockets, drainage paths, and gasket space. Appearance alone is not enough.

What can happen when glass does not fit the glazing pocket?

Oversized glass may press against shallow pockets. This creates pressure points and water problems. The frame can look attractive but perform poorly. Measure the glass and pocket carefully.

Which frame configuration should a project use?

Center-glazed systems can simplify field assembly for standard openings. Captured systems may improve glass retention, depending on the design. Review fixed frames, single doors, paired doors, and corners together. The storefront rarely stays simple on site.

How should structural strength be checked?

Start with the actual opening, not a brochure. Confirm wind pressures, mullion capacity, fastener spacing, and tested deflection data. Tall entrances may move more than expected. Measure twice.

What thermal features should be compared?

Compare whole-system U-factor and solar heat-gain performance. Do not judge efficiency by aluminum thickness alone. Thermal barriers, insulated glass, warm-edge spacers, and continuous perimeter seals may help. Orientation and climate still matter.

How can a storefront resist air and water problems?

Request tested air-leakage and water-penetration results. Inspect sill drainage, weep paths, corner seals, and transition flashing. Keep sealant away from drainage openings. One blocked sill can ruin an otherwise strong system.

What maintenance questions should be answered before approval?

Review finish durability, gasket replacement, hardware clearance, and access for glass replacement. Field testing can expose installation errors that factory data misses. The cheapest system may become expensive after one wet season. I would question any design using the thinnest profile without testing the opening.

Conclusion

Choosing the right Aluminum Storefront Framing Systems begins with clearly defining the project’s purpose, location, traffic level, design goals, and storefront application. Compare available aluminum grades, profile depths, finish options, and frame configurations to ensure the system matches the required appearance and performance. Pay close attention to structural strength, thermal efficiency, air and water resistance, and the system’s ability to perform under local environmental conditions.

Next, confirm that the framing is compatible with the selected glass types, seals, doors, locks, and other hardware. Review installation requirements, access limitations, maintenance needs, and the experience of the installation team. It is also essential to verify compliance with applicable building, safety, energy, and accessibility codes. Finally, evaluate supplier quality, technical support, warranty coverage, lead times, replacement-part availability, and the total cost over the system’s service life. A balanced assessment of performance, reliability, appearance, and long-term value will support a practical and confident selection.