Stop Writing Bad Specs: A Quality Inspector's Guide to Construction Specialties Products

There's no one right way to specify architectural specialties. What works for a luxury high-rise in Austin will probably be overkill for a mid-rise office park in Kennesaw. And what works for that office park won't pass muster for a hospital in Lebanon, NJ.

I review hundreds of product specs every year—expansion joints, louvers, sunshades, wall protection, doors, frames, kick plates. I've rejected about 12% of first deliveries in 2024 alone due to non-compliance. Not because the products were bad. Because the specs didn't match the actual use case.

So let's cut through the noise. Here are three scenarios, and how to get each one right.

Scenario A: The 'Just Need a Door' Client

This is probably the most common trap. Someone says 'we need a black front door' and the spec writer grabs a generic interior door spec, changes the color, and moves on. I've seen it happen—and it cost us a $22,000 redo in Q1 2024.

The problem is that a front door isn't just a door. It's a security barrier, a weather barrier, a thermal barrier, and the first thing people see. A generic hollow metal door from a warehouse won't cut it if the building's in a high-wind zone or if the client cares about energy performance.

What to actually do: Start with the environment. Is this a fully conditioned interior space, or is it exposed to direct sunlight and rain? If it's exterior, you need a door with proper weatherstripping, a thermal break, and a heavy-duty frame. For a black front door, spec a pre-finished insulated steel door with a minimum 18-gauge face sheet. Make sure the frame is 14-gauge minimum with continuous hinge reinforcement. And for the love of everything, don't assume a standard paint job will hold up—spec a Duranar or equivalent fluoropolymer finish.

I'm not 100% sure about all the regional codes, but in our experience, doors in coastal climates (like Fort Valley, GA or Denton, TX when near the coast) need additional corrosion protection. The spec should call for galvannealed steel or a corrosion-resistant primer.

Scenario B: The Performance-Critical Assembly

This scenario applies when you're dealing with expansion joints in a high-traffic facility: hospitals, airports, convention centers. The old advice—'just use a standard cover plate'—is outdated. The fundamentals haven't changed (you still need to accommodate movement), but the execution has transformed dramatically in the last five years.

People think more expensive expansion joint systems deliver better quality. Actually, the causation runs the other way: systems that deliver quality under abusive conditions can command higher prices. The real question is whether your building can afford a cheaper system. If a standard cover plate fails in a hospital corridor, you're not just replacing a piece of metal—you're shutting down a surgical wing for a day.

What to actually do: For high-traffic areas, spec a heavy-duty seismic expansion joint system with a continuous sealed membrane and compression seals at the perimeter. Minimum 1/4-inch thick aluminum for the cover plate. The system should be rated for 100% movement (both tension and compression) and tested to ASTM E-1399. I'd also include a requirement for shop drawings showing the interface with adjacent wall finishes, because that's where most field failures happen.

Granted, this is more complex than the 'just need a door' scenario. But here's the thing: if you get this right, you don't have to repair chipped paint or broken corner guards in two years. The upfront cost is higher, but the lifecycle cost is lower.

Scenario C: The Aesthetic-Minded Owner

This is the scenario where you're dealing with louvers or sunshades that are as much about appearance as function. Think RSV-5700 louvers on a museum facade or custom sunshades on a corporate headquarters. The trap is treating them as purely decorative elements.

It's tempting to think you can just pick a color and a blade configuration and call it a day. But an RSH-5700 series louver that's correctly sized for a 100-pound wind load will look dramatically different from one sized for 150 pounds. The blade spacing, the frame depth, even the finish specifications change.

What to actually do: First, establish the performance requirements before you pick a product. What's the design wind pressure? What's the required free air area for ventilation? Is there a water penetration rating needed (AMCA 500-L)? Once you have those numbers, the product selection follows naturally. For aesthetic-critical projects, I always include a requirement for a full-size mockup (minimum 3-foot section) approved in writing before fabrication starts.

Take this with a grain of salt, but based on my experience, about 70% of submittal rejections for louvers come from not understanding the wind load/airflow trade-off. If the spec just says 'driveway awnings' without a design basis, you're asking for trouble.

How to Tell Which Scenario You're In

Here's a quick diagnostic guide:

• If your timeline is under two weeks and the product is a standard stocked item, you're probably in Scenario A.
• If the building's going to see heavy foot traffic or vehicle loads, default to Scenario B.
• If you're picking a product for appearance reasons and the budget has room for a mockup, you're in Scenario C.

I can only speak to domestic projects. If you're dealing with international logistics or code requirements, there are probably factors I'm not aware of. But for projects within the US, these three scenarios cover the vast majority of what I see in my reviews—roughly 85% of the 200+ unique items I examine each year.

The reality is that getting specs right isn't about having a perfect template. It's about asking the right questions before you start typing. What's the environment? What's the critical failure mode? And what does 'good enough' actually mean for this specific project? Once you answer those, the product decisions become much clearer.