Most floor screed problems are not bad luck, they are a number missed at specification time or at covering time. Screed laid too thin cracks, screed covered while still damp lifts its finish, and screed dried too fast crusts on top while moisture stays underneath. This article lists the pros and cons, but the checks
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Choose by how the screed must behave, not by speed alone. A bonded screed becomes part of the slab, so it is thin and follows the slab, faults included. An unbonded screed sits on a separating membrane and moves independently of the slab, so it needs more thickness to span on its own. Floating screed
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Decide on calcium sulphate screed by its limits, not its speed. It flows flat, suits underfloor heating, and reaches foot traffic quickly, but it is not ready to cover in 24 to 48 hours: that is roughly when it can be walked on, not when it tests dry. Cover it only after a moisture test
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Choose by the job, not by the product. Wet screeding levels fresh concrete in the same pour, so it suits new slabs where cost and speed matter most. Dry screeding, a self levelling topping laid over a cured slab, suits existing floors and commercial jobs where flatness tolerance matters more than price. If the slab
Wet Screed vs Dry Screed – Which Is Better for Your Project? Read More »
Most anhydrite screed problems come back to three causes: moisture left in the screed, laitance left on the surface, and a screed laid too thin or on a badly prepared base. Get those three right and most of the cracking, debonding, hollow spots and covering failures described below never happen. The rest of this article
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Depth and finish decide this choice. Cement screed builds a new floor base, typically 25 mm to 40 mm thick, and takes weeks to dry before it can be covered. Microcement is a decorative finish in its own right, laid only a few millimetres thick over a sound existing surface, and ready far sooner. If
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Floor screed is the levelling layer laid over a structural concrete slab to give a flat, level surface for a floor covering. It is not the structural floor, and it is not a wearing surface on its own. Its thickness, its bond to what lies beneath, and its drying time decide whether the finished floor
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Depth decides this choice more than anything else. If you need to level a few millimetres, feather out dips, or get a floor covered the next day, self levelling compound is the right tool. If you need to build up 25 mm or more, form a fall or a ramp, carry a heated floor, or
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The right primer for self levelling compound is decided by the substrate, not by the brand on the tin. Porous concrete usually takes an acrylic primer, often in two coats, because the first coat soaks in and the second builds the film the leveller bonds to. Smooth, power floated concrete, calcium sulphate screed and timber
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Screed is the thin levelling layer laid over a structural concrete slab to give a flat, level surface for a floor covering. It is not the structural floor and it is not a wearing surface on its own. It carries the floor finish, it can hide services and insulation in a floating construction, and its
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Most cracks in underfloor heating screed come from one of four things: the heating was switched on too early or turned up too fast, movement joints are missing where the floor changes, the screed is thinner than the heated construction needs, or the screed dried too fast in its first days. A fine surface crack
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You’ve spotted moisture on your walls. Now you need to know what type of damp you’re dealing with, because the wrong fix wastes money and doesn’t solve the problem. This guide shows you exactly how to identify rising damp versus penetrating damp, what causes each type, and what actually works to fix them. What’s the
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What is Screed? Screed is a material used to provide a smooth, level surface before laying floor finishes such as tile, vinyl, or carpet. It is applied over concrete or wood subfloors to fill in any uneven areas, creating a flat base. There are two main types of screed, traditional screed and liquid screed. Traditional
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Damp proof membranes (DPMs) stop moisture from travelling through floors, walls, and foundations. Choosing the right type matters because the wrong membrane leads to damp problems, wasted money, and failed projects. This guide compares every major DPM type so you can pick the one that actually works for your situation. What Is a Damp Proof
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When your floors start sloping or cracks appear in your walls, two words might send a chill down your spine: subsidence and settlement. These terms often get used interchangeably, but they’re fundamentally different problems with different causes, risks, and solutions. The core difference is this: Settlement is normal. It’s the gradual, predictable compression of soil
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