A FAMILY RUN BUSINESS WITH
OVER 40 YEARS EXPERIENCE
FREE NO OBLIGATION
SURVEY, CONSULTATION & QUOTE
WE MANAGE IT ALL
FROM CONSULTATION TO COMPLETION
What is CEMENTITIOUS SCREED?
Cementitious Screeds are a specially formulated mix of cement, binders, water, and sand; increasing the performance of the screed.
Cementitious Screeds can be installed on any concrete substrate to improve, repair or level out any undulations or imperfections in the substrate that may compromise the ability to install or the finished quality of the chosen floor covering.
SCREEDÂ APPLICATION
The screed may be directly bonded to the base, or laid unbonded onto a suitable damp proof membrane which is placed over the slab. Alternatively it may be applied as a floating finish over a layer of rigid insulation material. This application is suitable for use with cast-in water pipes to provide underfloor heating. If reinforcement is required, this can either be in the form of a fine metal mesh, fibres which are normally polypropylene or a fine glass mesh.
The screed may be left as finished, or floated to produce a smooth surface on which to lay the specified flooring or finish. Ready-mixed sand and cement screeds that are factory-mixed and then delivered to site offer additional quality assurance over site-mixed screeds and offer a more consistent material.
Some manufacturers provide pumpable flowing screeds which can achieve very level finishes. Most of these screeds are anhydrite compounds and are based on a calcium sulphate binder. They are quicker to apply than a traditional sand and cement screed and may be applied to a minimum thickness of 25mm if bonded, 30mm if unbonded, or 35mm if a floating finish is required. They can also be used in conjunction with underfloor heating systems where a minimum 30mm cover to the pipes is needed. Up to 2,000m²/day may be laid using these screeds.
WHY CHOOSEÂ DIAMOND RESIN?
What our customers and client have to say about us.
Having searched the web for local floor refurbishment companies we came across a few which included Diamond Resin, having asked for quotations from a few and carried out site visits we found the finish from Diamond Resin to be the best option. Gerry, their project manager came across as very enthusiastic and cost reasonable against other quotations.
We found Diamond Resin to be a very professional company. Floor coating for ITV News quote to completion. They completed the painting of our new studio floor on time, for a competitive price to a very high standard. We would use them again without hesitation.
Diamond Resin previously undertook works at two blocks that we manage. The service provided was excellent from start to finish and prices were competitive. All works were completed to a high standard and any snagging was dealt with in a timely manner.
SCREED DEFINITIONS
There are particular definitions concerned with specifying screeds.
Levelling screed – screed suitably finished to obtain a defined level and to receive the final flooring. It does not contribute to the structural performance of the floor.
Wearing screed – screed that serves as flooring. This term was formerly known as high strength concrete topping. It is also used to refer to structural toppings as well as wearing surfaces.
Bonded – screed laid onto a mechanically prepared substrate with the intention of maximising potential bond.
Unbonded – screed intentionally separated from the substrate by the use of a membrane.
Floating – screed laid on acoustic or thermal insulation. This is a type of unbonded screed.
Cement sand screed – screed consisting of a screed material containing sand up to a 4mm maximum aggregate size.
Fine concrete screed – screed consisting of a concrete in which the maximum aggregate size is 10mm.
Pumpable self-smoothing screed – screed that is mixed to a fluid consistency, that can be transported by pump to the area where it is to be laid and which will flow sufficiently (with or without some agitation of the wet material) to give the required accuracy of level and surface regularity.
Curling – an upward deformation of the edges of the screed caused by differential shrinkage.
It should be noted that pumpable self-smoothing screeds are often known as ‘self-levelling’ screeds.
CEMENTITIOUS SCREEDING: WHAT TO EXPECT…
Our 6 step process will give you a guide to what to expect when you choose Diamond Resin.
