When installing 10mm pipe for rads on a heating system, is it best to notch out or drill holes in the joist when tuning then back to flow and returns. [/code]
With regards to preventing mechanical damage from nails and screws, it is recommend that they are holed at 50mm from both top and bottom of joist, this is not always practicable though.
Be aware there are building regulations` in place concerning notching and holing joists. Part A would be worth having a look at.
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