Ventilation system - MVHR 1st fix

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I have been busy this week putting in radial pipework for the ventilation system - Mechanical Ventilation and Hear Recovery = MVHR. The pipes go in the void between ceiling plasterboard and roof.

 See in the pics the long lengths of red 75mm pipe that either supply air to, or exhaust air from the house

 Some have double pipes to increase flow, esp if they are further from the machine that pumps air in/out. Bathroom and kitchen also have double pipes to enhance performance.

 It was quite tricky finding a place to run the pipes in some parts.
You may also see that Darren the sparkie has been in and run 1st fix cables everywhere, for electricity and data.

Here is an image of the large skylight bringing buckets of light into the centre of the house.