I have a Worcester Greenstar boiler and when I switch the central heating on the pipes on the landing make a creaking/knocking noise. I have lifted the floorboards and noticed that the pipes are directly underneath them and therefore touching the boards in some places. Is this what is causing the problem and if so what can I do? I did buy some lagging for the pipes but would be unable to relay the floorboards evenly if I use it. Please advise.
Pipes making a creaking/knocking noise
- Thread starter veronicafran
- Start date
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veronicafran said:
Copper pipes expands and contract with heat. They are flexing your floorboards slightly. Only thing you can do is increase the notches that the pipes sit in so they can expand without flexing anything. Advise you get it looked at that though as taking bigger notches out of your joists will weaken them somewhat.
If I lay some felt inbetween the pipes and floorboards would that solve the problem?. Failing that would cutting a recess in to the underside of the floorboard work?
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veronicafran said:
The floor board would be weaker.. only take a few milimetres out if you want to do that. Better to have a weaker floorboard than joist. Floorboards are far easier to replace if something goes wrong!
Don't know a lot about felt
If'd be concerned about the floorboards compressing your pipes and any connectors that might be there. They should of notched to sufficient depth to begin with and allowed for expansion or used plastic pipe that they could feed through holes that are drilled mid point in the joist. This is another method to notching, normally used for cable routing. Good luck!
p.s. don't drill holes in your joists now you have notches, would be very weak then! What thickness are your joists and how deep is the notche(s)
Joists are 7 inches deep and the notches are 1 inch deep
Have just read a thread which says hair felt may help. Can I get hair felt from B&Q, Focus etc or do I need to go to a Plumb Centre?
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