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

Cold Room Insulation: XPS, PU Spray Foam and Freezer-Ready Floor Coatings

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Cold room insulation keeps the cold in and the heat out, around the clock. In Egypt’s climate, the temperature gap between a freezer room and the outside air can be very large. So each surface needs the right material: floor, walls and ceiling. This guide explains the options from their data sheets, and how Target handles cold storage projects. Contents ... Read More

Inverted Roof Insulation: XPS Boards Over the Waterproofing Membrane

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Inverted roof insulation places the thermal boards above the waterproofing membrane, not below it. That simple change protects the membrane from heat, sun and site traffic. In Egypt’s hot summers, therefore, the inverted order matters a great deal. This guide explains the layer order, the board data that matters and how Target builds these roofs. Contents Conventional vs inverted roof ... Read More

Green Roof Anti-Root Membrane: Waterproofing Planted Roofs with SBS Rolls

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A green roof anti-root membrane is the waterproofing layer that stays sound under soil, water and living roots. A planted roof keeps the membrane damp most of the time. Meanwhile, roots search for any weak point in it. So a normal roof build-up is not enough. This guide covers the membrane, the protection layer, the edge details and testing, and ... Read More