AWF Blog

When it comes to protecting foundations, split slabs, planters, retaining walls, and other below-grade structures, two products consistently appear at the top of contractor specification lists: Sikalastic HLM 5000 GC and TREMproof 250 GC. Both are cold-applied, single-component polyurethane waterproofing membranes designed to create a seamless barrier against water intrusion. Both can be applied to damp concrete, both meet ASTM C836 requirements, and both are trusted by architects, engineers, an …

When it comes to building performance, what you don't see behind the wall is often just as important as what you do. Air leaks, water intrusion, and moisture-related damage can quietly reduce energy efficiency, compromise occupant comfort, and lead to costly repairs down the road. That's why modern building envelopes increasingly rely on high-performance air barrier systems, and why fluid-applied solutions like ExoAir® 230 have become a popular choice among architects, contractors, and …

When it comes to protecting commercial buildings from the spread of fire and smoke, not all sealants are created equal. Many contractors, facility managers, and building owners focus on fire-rated walls and assemblies, but often overlook one critical detail: the joints, gaps, and movement areas where fire and smoke can travel. That's where Metacaulk 1200 comes in. Designed as a flexible, fire-rated joint sealant, Metacaulk 1200 helps maintain the integrity of fire-resistance-rated asse …

When people think about roof restoration, most of the attention goes to the coating itself. But experienced contractors know the real success of a roof restoration project starts long before the coating is applied. A coating system is only as strong as the surface underneath it. Dirt, grease, moisture, loose debris, failing seams, and untreated penetrations can all compromise adhesion and shorten the life of the restoration system. Even premium coatings can fail when applied over poorly prep …

If you’ve ever dealt with a leaking balcony, cracked deck coating, or worn-out pedestrian surface, you already know—it’s never just a surface problem. It’s a waterproofing problem. And if it’s not handled correctly, it turns into a structural problem. That’s where systems like Sikalastic®-726 Balcony One Shot come in. But what exactly is a “one-shot” system—and why are contractors switching to it? Let’s break it down. First—Wh …

When people think about fire protection in buildings, they usually picture alarms, sprinklers, or fire extinguishers. But one of the most important lines of defense is often hidden behind walls—firestop materials that prevent flames, smoke, and toxic gases from spreading through small openings. One such solution is fire-rated putty, a simple yet highly effective material designed to seal penetrations and restore the fire-resistance of walls and floors. What Is Firestop Putty? Firestop putt …

When working on residential or commercial construction projects, the terms fireblock and firestop are often used interchangeably—but they are not the same thing. While both help improve fire safety within a building, they serve very different purposes and are governed by different building code requirements. Understanding the difference between fireblock and firestop materials is critical for contractors, builders, inspectors, and facility managers looking to maintain code compliance and m …

Let’s be honest—most people don’t think twice about the small gaps in walls, ceilings, or floors. A pipe runs through drywall.A few cables pass between rooms.Maybe a joint where two materials meet. No big deal… right? Actually, those tiny openings can become one of the biggest risks in a building during a fire. The Problem With “Small” Gaps In everyday conditions, those gaps don’t seem like much. But in a fire? They turn into pathways. Flames, smoke, an …

If you’ve ever had to seal around pipes, cables, or joints in a rated wall or floor, you’ve probably heard the term firestop. But what does that actually mean in real-world terms—and where does Metacaulk 150+ come into play? Let’s break it down in a way that actually makes sense on the job. So… What Is Metacaulk 150+? At its core, Metacaulk 150+ is a fire-rated, intumescent sealant. That means it’s designed to: Seal openings in fire-rated walls and f …

In commercial construction and building maintenance, choosing the right sealant can make a significant difference in long-term performance. Sealants protect structures from water intrusion, air leaks, and environmental exposure, making them a critical component of the building envelope. One product frequently specified for these demanding applications is Spectrem® 2, a high-performance silicone sealant developed by Tremco. Known for its durability, flexibility, and strong adhesion, Spectrem …