This is a topic on which I have touched before but it is one that continues to crop up when talking to clients about fitted bedrooms, so I thought it might be helpful to go into more detail.
I am often told that clients have experienced problems on opening fitted wardrobe doors, and particularly when picking out seasonal clothes such as ski wear or last year’s summer clothes that have been in the cupboard for perhaps 6 to 11 months since their last wearing, and finding that the clothes have mould stains that can be difficult, or even impossible, to clean.
It is often assumed that this is the result of penetrating or rising damp, and it might be where the bedroom is on the ground floor or the property is pre 1930s and does not have a cavity wall. However, with the majority of bedrooms being at first floor level or higher and most houses, going back to the 19th century, being of cavity wall construction, the cause probably lies elsewhere.
If any part of a fitted wardrobe, even one end, is on an external wall or a chimney breast the internal surface of that wall is likely to be colder than the ambient temperature in the room, particularly in a centrally heated house in winter.
The warm air in our houses absorbs moisture from our persperation, exhalation and cooking. We open a wardrobe door, perhaps only once in the morning and once in the evening and moist warm air displaces the still, drier, cooler air within. We go off to work or go to bed and as the outside surfaces of our home cool, heat is drawn outwards from the inner walls, cooling the surfaces and the air trapped within the furniture which gives up its humidity and precipitates some moisture onto the inner surfaces of the wardrobe and onto the clothes stored there. The next time we open the cupboard doors the interior warms up and we have created the perfect moist, dark environment for a small mushroom farm.
The solution? If you are getting quotations for bespoke fitted bedroom furniture from companies like Options Fitted Furniture insist that the wardrobes are fully carcassed, that is; completely sealed, with solid (ideally 18mm) backs to the carcasses and that there is still air space of at least 30mm between the backs and the walls. It may cost a little more than what is usually refered to as front-frame bedroom furniture but it will smell a whole lot nicer and your precious clothes will be safe.