Information / Maintenance

Our quality and our service remain our hallmarks today, helping to make Mona Precast a market leader. Our products can be found in landmark buildings, such as the new Snowdon summit café, as well as supermarkets, schools, health centres, and other modern structures. With Mona Precast’s position in the industry assured, Christopher, Nigel, and Mark continue to build on the wonderful foundations laid by their father Peter and grandfather Howell over half a century ago.

Our sustainability

Mona Precast strives to use a very high proportion of locally sourced recycled materials in its production of concrete products. Our world-class manufacturing facility is also very energy efficient, significantly reducing our CO2 emissions.

Your sustainability

Mona Precast concrete products are perfect for constructing modern, energy-efficient buildings fit for the 21st century. Our quality products have a long life and require no maintenance. Concrete structures are easily modified to fit changing demand, are not adversely affected by floodwater, and have excellent fire-resistant properties. Use our concrete products and you will meet or exceed the more stringent energy efficiency requirements under Part L of the Building Regulations for England and Wales.

Mona Precast concrete blocks are ideal to achieve high Green Guide ratings for both walls and floors. Studies show that conventional masonry homes that take advantage of inherent thermal mass save a significant amount of energy over their lifetime compared to lightweight timber-framed housing. Mona Precast products can be used to construct buildings with a high thermal mass, and they make compliance with the Code for Sustainable Homes equally.

Efflorescence
Efflorescence can appear as a milky white stain which may occur on the surface of the product, giving the appearance of a loss of intensity in colour. It is not detrimental in any way and is temporary. We cannot accept responsibility for its occurrence.

Colour Variations
The colours in this brochure are as close photographically as possible, but we recommend that you view a display before making your choice. Colour change can occur due to the natural raw materials being of slightly different shades. We advise that all the paviours are chosen from the same batch and that you select your paviours vertically from two different pallets for the best effect.

Maintenance
To keep up the appearance of your paviours, periodic cleaning may be required. A stiff brush and clean water should suffice. If there is a slight stain, a mild detergent such as washing-up liquid may be used.

Where there are trees, it is advisable to sweep the area regularly as they may stain if left for long periods. Power washing is not usually needed, but if desired, it is best to sweep the area well beforehand as debris could scratch the surface.

Proprietary cleaning agents should only be used with care, as they might affect the colour over time. Always read their instructions before using.

Engineering & Installation Disclaimer
All retaining walls constructed using Mona Mega Blocks must be designed, certified, and approved by a qualified structural and/or geotechnical engineer.

Mona Precast supplies concrete blocks only and does not provide engineering design for retaining wall systems unless specifically contracted to do so in writing. The suitability of the product for any particular application remains the responsibility of the purchaser, contractor, and project engineer.

Mona Precast accepts no liability for failure, movement, damage, or loss arising from improper design, inadequate drainage, incorrect installation, site conditions, or failure to obtain appropriate engineering advice and approvals.

Mona Precast accepts no responsibility for retaining wall design or site suitability. Engineering advice should be obtained prior to construction.

Simple Guide to Laying Block Paving

Preparation
Remove the top surface—soil, turf, or existing slabs, etc.—to a good firm base. The paving area should be surrounded by a firm edge restraint. Lay a sub-base and compact thoroughly to an approximate depth of 100mm. Screed out 50mm of sharp sand and compact thoroughly, then screed an extra 20mm of sharp sand, but do not compact. Once the base is smooth and at the correct level, you will be ready to lay your block paving.

Laying Your Paving Block
The paviours are simply placed on the sand, depending on the pattern you require. Laying begins on the edge or corner and proceeds along one laying face until complete.

Then, after ensuring there is no debris on the paviours, use a rubber-faced vibrating plate and pass it over the area 2–3 times to compact and even out the surface. Finally, after making sure the paviours are dry, brush kiln-dried sand onto the paviours and sweep it into the fine spaces between them. Pass the rubber-faced vibrating plate over the area again to tightly pack the sand into the joints.