Facade Movement Joint Sealing with Polyurethane Sealant: Sizing and Steps

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Facade movement joint sealing looks like a small finishing task, yet it decides whether a facade stays dry. In Egypt, intense sun heats walls by day, and they cool at night. As a result, panels, blockwork and frames move constantly. A sealant that cannot follow this movement cracks or peels, and rain finds its way in. This guide covers sealant ... Read More

Under Slab Vapor Barrier: Polyethylene Sheets for Ground-Bearing Slabs

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An under slab vapor barrier is the polyethylene sheet laid on the compacted ground before a ground-bearing slab is cast. On Egyptian sites, people simply call it “nylon under the concrete”. It looks like a minor item. However, it often decides whether a floor finish stays bonded or starts to fail within months. Contents Why Ground Slabs Need an Under ... Read More