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Small Shower Room Ventilation.

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I was talking to a developer this morning. His son is a sparks. The two have installed a new 4 inch ceiling fan in a small upstairs shower room that has no windows. The building roof has been renewed recently and new breathable "felt" installed under the tiles. I had previously mentioned that the roofers could install a new roof vent for the fan ducting, but nothing has been done about this.


The developer says that the son advises terminating the air duct in the loft onto a bucket to catch moisture, which I said was not acceptable.


Bearing in mind that the new roofing "felt" (membrane) is breathable, is there any reason these days not to terminate the air duct directly into the loft space with no external grille?


Z.
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    I have a very good condensing tumble drier, so the water is returned to me in a tank. It is usually about 2 litres per load from a 1200 RPM spin washing machine, which feels pretty dry to the touch.  A quick wash and 800 spin and it is more like 3 litres, certainly a lot more than freely vented driers suggest.

    I have a friend who has a new “fancy” flat with a wash and dry machine that room vents the air. He has a serious problem with black mould and condensation and is buying a dehumidifier to solve the problem. 

    Venting to the roofspace is probably a bad idea!

     

    The heat pump is not more than the tumble drier with an internal dehumidifier, eh Chris?

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    I have a very good condensing tumble drier, so the water is returned to me in a tank. It is usually about 2 litres per load from a 1200 RPM spin washing machine, which feels pretty dry to the touch.  A quick wash and 800 spin and it is more like 3 litres, certainly a lot more than freely vented driers suggest.

    I have a friend who has a new “fancy” flat with a wash and dry machine that room vents the air. He has a serious problem with black mould and condensation and is buying a dehumidifier to solve the problem. 

    Venting to the roofspace is probably a bad idea!

     

    The heat pump is not more than the tumble drier with an internal dehumidifier, eh Chris?

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