Carpet fitter has put down 10 mmm pu foam underlay and has stapled it to the floor. But he hasn't taped the join. When I've asked him about he says he has never done so and has been fitting carpets for 20 years. Online it says to do this.
I've backed down particularly as he got the carpet retailer to speak to me.
Am I being picky or is it okay to not tape underlay?