lapVent - a revolution in roof space ventilation systems

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lapVent - a revolution in roof space ventilation systems lapVent - a revolution in roof space ventilation systems

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Author

barry

Date

09/08/12 17:00

Title

passivent

presumably this system can also be used for a passivent system, perhaps by having a \"Y\" shaped top bit to an insulated duct from first floor bathrooms to discharge under a (sound) slate roof just below the ridge