Air contains water vapour in varying quantities and the amount it holds depends upon the temperature of the air. Warm air has a far greater capacity for holding moisture than colder air. When warm air, containing high levels of moisture, comes into contact with colder air, or colder surfaces, it cools and loses its ability to hold the moisture. The result is condensation.
In the UK, condensation is mainly a problem of the winter months, with warm air in centrally heated houses coming into contact wth cold surfaces (such as windows and tiles) or colder parts of the house. It is surprising how much moisture is generated on a daily basis just by ordinary household activities. Washing and cooking will produce 8-10 litres of water and a single person will expel over a litre of water just breathing!
Positive Pressure Ventilation – Our Anti-Condensation unit circulates fresh air throughout the property reducing humidity levels and also helps reduce and maintain Radon gas where levels have been detected up to 700 Bq/m3.
Passive Air Vents – Passyfier vents are non-mechanical vents operating continuously without noise extracting up to 2.3 litres of water per day.
Humidistat Extractor Fans – For high humidity situations in kitchens, bathrooms and utility rooms providing quick evacuation of moisture laden air.
Simple recommendations to the home occupier on Condensation Control.
Nowadays, everyone is more aware of the need to conserve energy. The easiest way to conserve energy is to insulate properties to stop heat escaping. Unfortunately, that also stops moisture vapour escaping, resulting in condensation on cold surfaces. Subsequently the black spot mould resulting from condensation can lead to deterioration of internal decorations, soft furnishings, etc.
What is a Passyfier Vent?
The Passyfier vent is a through-the-wall telescopic sleeve containing a slab of mineral wool, with a louvered vent internally and an external cover available in various colours to match the external decor of the property.
Passyfier Vents take advantage of the differential partial moisture vapour pressure that is normally higher inside an occupied building than on the outside during the condensation season. The moisture vapour escapes by diffusion through the Passyfier Vent through the mineral wool whilst simultaneously preventing cold draughts.
This diffusion process is slow compared with mechanical ventilation and would not cope with a large amount of water vapour produced in a short time scale, ie in kitchens or bathrooms, without the use of mechanical ventilation.
Fitted mainly in habitable rooms, the Passyfier Vent will operate continuously, without noise, 24 hours per day extracting up to 2.3 litres of water per day and therefore preventing the build up of condensation. All of this with little or no heat loss and because they are non-mechanical, once installed, they cost nothing to run.
We can supply and fit these units.
The Anti-Condensation Whole Home Ventilation and Positive Pressure Ventilation Systems.
The Anti – Condensation Unit is designed to help banish condensation and damp stale air within the home by drawing in fresh air and introducing it into the property.
Why Install This Unit?
The installation of a Positive Pressure Ventilation System is also effective in reducing and maintaining radon levels within the home where levels have been detected up to 700 Bq/m3.
Lack of adequate ventilation and modern-day living can lead to a higher amount of humidity within the home and therefore causing the unsightly black mould associated with condensation. This black mould produces spores which can pose a serious health threat to those who suffer from asthma and breathing problems.
How It Works:
Available with an optional heater facility to provide additional heat to the incoming air if required.
This system ventilates the home by drawing in fresh air from outside and blowing it indoors. Available in either loft or wall-mountable design.
We can supply and fit these units.
We approached Drysafe with a damp proofing requirement and they have been absolute stars from start to finish!
From initially meeting us at the property to explain what could be done, then overcoming changes in spec requirements with no drama no hassle what so ever !
Staying in constant contact, arranging a date to start and appearing on time, working flat out and finishing the job to a high spec, they arrived each, cleaned up each day and were a pleasure to have on site.
Thanks Guys really, really appreciated!
Tom and his colleague Orry were brilliant! Tom is knowledgeable, thorough in his assessment, super pleasant, amenable and professional. Whilst the work was noisy (nature of the job – damp proof course and membrane installation) Tom and Orry were efficient and clean. I would highly recommend Drysafe for quality of work, advice given and delivery of the end product. Thanks Guys, looking forward to a warm and dry winter!
Professional, knowledgeable, polite, tidy, did what they said they would do when they said they would do it. I cannot recommend Drysafe Construction more highly.
We were extremely grateful to Mike for giving up some of his Saturday to undertake the inspection and we found the recommendations incredibly helpful.
I’ve been really impressed with all that you guys have provided, especially Mike’s willingness to give us the extra advice whilst he was at the cottage…
Thank you very much for having a look at this property, I found the report very helpful and informative. If I come across any damp problems in the future I wouldn’t hesitate to contact you. Thank you very much for all your help
Thank you so much for an excellent service all-round, we will recommend you highly!
Thank you so much for getting back to us at such short notice and with such detail. We intend on doing something over the course of the coming months. It is so refreshing to meet a company that is local, approachable, customer orientated and easy to talk to!
Thank you for the report and the excellent service.
It was a pleasure to meet Mike and he did an awesome job.
Thank you for all your time and trouble over the last couple of years. I’ll be recommending you whenever the opportunity arises.
Thank you ever so much. I was very impressed with Mike and the service offered by your Company.