Materials

We know that our customers expect to receive a premium product that is second to none for performance, aesthetics, and longevity. At Mumford & Wood Ltd, we only use the best quality, highest performing materials and methods to maintain the standards we have set within our industry.   

Timber  

Achieving high-performance windows that will look good for years to come requires the use of premium grade materials; at Mumford & Wood, engineered timber takes centre stage. We only use the best clear grade timber; this provides superior strength, stability and a knot-free finish – qualities for which our Conservation range is renowned. Engineered substrates will improve security, provide greater thermal performance, comfort and acoustics, and remain looking good for longer.  
Mumford & Wood Ltd has been at the forefront of development and set a benchmark in design and manufacture using engineered timber sections for windows and doors, and we are well ahead of those using solid sections.  

In creating our laminated sections, the heartwood is scanned for defects; a computerised action identifies resin pockets and knots that are then removed. The remaining clear parts are then finger jointed and glued in six-metre lengths to create top quality, clear grade timber. Today’s engineering techniques leave all the wood that is not used in the country of origin where it is recycled at source. As a result, certificated timber used by Mumford & Wood is the most renewable, sustainable material in our industry.   
Independent tests have proven that an engineered component is 60% stronger than a piece of solid wood of the same size and ensures stability. We even specify the grain direction for every section of timber that we use. This significantly improves stability, visual appearance and the performance of the paint finish.  
All Mumford & Wood products are manufactured using FSC® (Licence FSC-C110183) certified timber and specified for Chain of Custody.  

Finish  

At Mumford & Wood we offer a fully finished, three coats, spray applied, water-based, microporous finishing system.  
A microporous finish allows the timber to ‘breath’. Our products' timber has a moisture content that is between 12 – 18%, and our sections are regularly checked in the factory to ensure this is maintained through production. Once our windows and doors are delivered to site and installed, they are subjected to the ever-changing climatic changes we experience here in the UK. When the air is very humid, the timber will take on moisture, and when it is very dry, the timber will let go of moisture hence the term ‘breathing’. The microporous system allows the timber to do this without damage to the surface coating.  

All timber framing is meticulously prepared for painting by state-of-the-art machinery before the initial primer coat and the two top finishing coats. We give the utmost attention to detail by hand at this stage by skilled operatives to achieve a perfect finish.  

Our products are supplied finished with a choice of colours; typically, in RAL 9003 Signal White, but our customers may choose from the RAL Classic swatch or even specify a bespoke colour for us to match. In addition, we can offer a ‘dual finish’ where different colours are desired internally and externally or a ‘mixed finish’ where frames are specified to be contrasting to sashes.  

Glass Units and Glazing System  

We use a dry, internally glazed, drained and vented system.  
All double-glazed units in our Conservation range products receive 13mm coverage in an 18mm rebate leaving 5mm airspace around the unit. This space is vented to allow drainage and airflow following the Glass and Glazing Federation requirements, enabling us to offer a full 10-year warranty to our double-glazed units.    
All glazing tapes are stored at the correct temperature, and every piece of glass is carefully cleaned before glazing. We then apply an activator that reacts with the glazing tapes to maintain the proper adhesion.  

Where glazing bars are specified, we employ an applied bar system that offers a versatile range of period style glazing bars. The external bars are appropriately jointed to the sash traditionally, while the double-glazed unit is offered from the inside with a corresponding bar configuration within the cavity of the unit. The internal glazing bar is then produced as a one-piece inner cassette, prefixed to the internal perimeter beading resulting in a high performance, secure and aesthetically pleasing glazed sash.  
Our double-glazed units are available at 14mm and 24mm. By varying the depth of the internal cassette; our product allows us to offer all of these along with a range of internal mouldings and glazing bars with no variation to the external appearance.  
A range of different glass specifications is offered depending on your requirements, whether acoustic, thermal or aesthetic.