Fastening Panel-type underlay
Fastening Panel-type underlay (1) Panel-type underlay shall be fastened to the subfloor with staples, annular grooved flooring nails or spiral nails, spaced not more than 150 mm o.c. along the edges and 200 mm o.c. both ways at other locations. (2) Nails for panel-type underlay shall be not less than 19 mm long for 6 mm thick […]
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