Gas Bubbles
Gas Bubbles in Duradek Membranes
Duradek membranes are adhered to a properly prepared substrate using either a water-based latex adhesive or a solvent-based contact adhesive, depending on the season and environmental conditions.
- Latex adhesives dry through evaporation, a natural process that takes several hours. However, they are susceptible to freezing, so most contractors prefer solvent-based adhesives in colder months.
- Solvent-based contact adhesives dry by “flashing off”—this involves applying adhesive to the plywood deck, allowing it to dry completely, then applying it to the membrane’s underside. Once both surfaces become tacky, they are pressed together, forming a strong bond as the glue molecules physically and chemically mesh.
Why Gas Bubbles Occur
Small Gas Bubbles can appear due to trapped pockets of wet adhesive when using solvent-based adhesives. Since these adhesives don’t dry uniformly, temporary bubbles may form beneath the membrane. These typically disappear as the adhesive fully cures, but extreme cold or heat can delay the process.
How to Speed Up the Process
While bubbles often dissipate naturally, heat can help accelerate the process.
- Sun exposure softens the adhesive, allowing the membrane to settle.
- In colder weather, this process takes longer.
⚠ Caution: Avoid excessive heat, as it can damage the membrane finish. Only a qualified installer should use a Hot Air Welding Gun for this process.
If Gas Bubbles persist or worsen, our trained installers will assess the situation and apply the necessary corrections for a flawless finish.
FAQ
What causes Water Ponding on Duradek membranes?
Water ponding occurs when improper drainage allows water to collect on the surface, which can lead to membrane wear over time. Proper slope and drainage solutions help prevent this issue.
What are Gas Bubbles in Duradek membranes?
Gas Bubbles form when small pockets of wet solvent-based adhesive get trapped under the membrane during installation. These bubbles typically disappear as the adhesive fully cures, but environmental factors like extreme cold or heat can extend the drying time. If the issue persists, professional assessment is recommended.
Do bubbles affect the durability of Duradek membranes?
No, they are temporary and usually disappear as the adhesive cures. However, if they persist, a professional inspection is recommended.
Resolve Bubbles in Your Duradek Membrane
Gas Bubbles can impact your deck’s appearance and performance. Our experts provide professional inspection and solutions to ensure a flawless finish.