The Cemscreed 5 from CRH PLC - fast-drying floor for tight build schedules

Reviewed: ad hoc news New Release & Launch desk. Edited and checked on 2026-06-23, 21:56. Details in the imprint.

The Cemscreed 5 from CRH PLC hits you first by smell: fresh cement, damp sand and that cool, dusty chill when the screed truck opens on a morning site. It feels like a product built for foremen with stopwatches, not for catalog photos.

Why Cemscreed 5 matters

Cemscreed 5 is a factory-produced, cementitious, ready-mixed screed that CRH subsidiary Tarmac positions for projects needing a fast turnaround on floors. It is designed for residential, commercial and light industrial slabs where drying time is critical.

According to Tarmac, the mix reaches typical drying characteristics that let trades walk on the surface after 24 to 48 hours and start laying most floor finishes in around five days, assuming good site conditions. That promise is what made product manager Mark Armstrong push it hard into UK regional builders' merchants.

What contractors actually get

On site, Cemscreed 5 arrives as a ready-mix screed from local CRH plants, typically delivered by truck and pumped into place, which reduces manual loading and site dust for crews. The mix can be laid as bonded, unbonded or floating construction, giving specifiers flexibility.

Installers report that the material has a smooth, workable consistency when fresh, with enough body to close up nicely under a hand trowel. When you drag a float across it, you get a tight, almost silky surface rather than a coarse, gravelly feel.

Drying times and performance

Cemscreed 5 is formulated with controlled water content and carefully graded sand so that, under standard conditions of 20 degrees Celsius and 65 percent relative humidity, it dries at roughly 5 mm per day up to a certain thickness. That underpins its five-day tiling reference.

The screed targets compressive strengths in line with conventional sand and cement screeds, so you do not trade durability for speed. For many floor coverings, moisture testing is still needed, but flooring specialist reviews describe the product as consistent once you respect curing and ventilation.

Use cases from homes to retail

CRH positions Cemscreed 5 for underfloor heating systems, ground-floor slabs and intermediate floors where quick access for follow-on trades is key. Heating engineers like the way the screed can fully encapsulate pipes while still hitting timelines for commissioning.

In a typical UK semi-detached renovation, that means the plumber can pressure-test on Friday, the screed team pours on Monday, and by the following week the tiler is already setting large-format tiles in the kitchen. That kind of tempo is exactly what CRH CEO Albert Manifold likes to highlight when he talks about value-added materials.

How it compares in the screed market

Compared with traditional site-mixed screeds, the main difference is quality control. Cemscreed 5 is produced in batching plants under controlled conditions and audited mixes, which reduces the risk of weak spots from on-site mis-dosing of cement or water.

Against flowing anhydrite screeds, it avoids gypsum-based chemistry, which some installers still distrust under moisture-sensitive finishes. It behaves more like a conventional cement screed in terms of surface preparation and compatibility with many adhesives, simplifying design choices for architects.

Practical pros and the irritations

The clear pro is scheduling: site managers can pencil in follow-on trades with fewer weather-related surprises, as long as temperature and ventilation remain within the recommended envelope. That predictability saves money on idle crews and temporary accommodation for occupants.

The flip side is logistical. Because Cemscreed 5 is supplied as a ready-mix product, rural projects far from CRH plants may face delivery surcharges or tighter time windows. Some smaller contractors also complain that minimum order quantities can be awkward on tiny bathrooms or patch repairs.

Availability and regional focus

Cemscreed 5 is currently marketed mainly in the United Kingdom through Tarmac, with distribution via ready-mix plants and a network of merchants that focus on professional builders. It targets both new-build projects and refurbishment work, often specified by structural engineers or quantity surveyors.

For German readers, that means you will typically only encounter Cemscreed 5 on UK-linked jobs or cross-border projects. On the ground, a foreman standing in the echoing shell of a retail unit sees one thing above all: a floor that will be ready for shopfitters sooner than the old mixes ever were.

CRH context and share reference

CRH has been pushing deeper into value-added solutions like specialty screeds as it shifts its portfolio toward higher-margin products in Europe and North America. Cemscreed 5 is a small but telling piece of that strategy, alongside asphalt innovations and precast systems.

CRH PLC shares (ISIN IE0001827041) trade on the NYSE, where they recently changed hands at around 111.5 US dollars per share, according to market data cited in European financial coverage.

This article was AI-assisted and editorially reviewed. Product information without guarantee; prices and availability may change at short notice. No investment advice, no buy or sell recommendation. Stock-market transactions involve risks up to total loss.