Não posso nem dizer que eles estão lá da foto ... Talvez eu esteja olhando muito de perto. Bem, acontece que a resposta é que sou um idiota. Eu interpretei mal as diretrizes e usei o calibre errado de grampos.
Como resultado, recebi esta descrição do manual do fabricante:
IMPORTANT: Be sure not to over-drive the fastener past the nail slot, this can lead to a condition known as a telegraphing fastener. A telegraphing fastener is the visible effect of excessive pressure being placed on the wood fibers which causes the appearance of a bump to occur just above the fasteners. This condition becomes most apparent when natural or artificial light reflects across the surface of the floor causing the bump to become visible to the eye. This condition can sometimes be difficult to see, so make sure to thoroughly examine the first few rows of flooring to make certain telegraphing does not exist. Johnson Premium Hardwood does not warrant against this condition since telegraphing fasteners are not manufacturing related. If you should encounter this condition immediately stop the installation and contact Johnson’s Technical Department and or the manufacturer of the nailer for technical advice. It is essential that the flooring installer make sure that the nailer/stapler is properly adjusted for the particular floor that is being installed i.e. the fastener(s) MUST enter the nail slot at the correct angle and height, do not over-drive the fastener(s) so as not to cause damage to the board e.g. telegraphing fasteners, broken or split tongues, peaking, squeaking, or crackling noises to occur.
Estou refazendo - 3 dias - $ 600 lições aprendidas. Leia com mais cuidado ....