counter-lathn.
1. In Roofing:
a. A batten or slight rafter laid between two rafters, and blocked-up on the purlins to the same face-level to shorten the bearing of the laths.
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1659 T. Willsford Architectonice 16 Betwixt every Rafter there ought to be a counter-lath.
1706 Phillips's New World of Words (new ed.) Counter-lath (in Building), a Lath that is laid in length between the Rafters.
b. A lath placed by eye between every two gauged ones.
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1726 R. Neve City & Country Purchaser (ed. 2) at Laths About 90 five-foot, and 112 four-foot Laths, will compleat a Square of Tyling (Counter-laths and all).
1830 ‘R. Stuart’ Dict. Archit. I Counter Lath, one placed between every couple of gauged ones.
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2. In Plastering: A lath or fillet nailed lengthwise along a timber or beam to keep the cross-laths away from the surface of the timber, so as to allow the plaster to squeeze in between them and form a ‘key’ to the plastering.
Derivatives
ˌcounterˈlath v. to furnish with counterlaths, or counterlathing.
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1726 R. Neve City & Country Purchaser (ed. 2) at Tyle For Ripping and Heeling again..our Sussex Bricklayers reckon 3s. 6d. per Square, and if they Counter-lath it then 3s. 9d. or 4s.
1840 A. Bartholomew Specif. §1348 To counter-lath all such parts of the work as may so require.
ˈcounterlathing n. in Plastering laths for plastering nailed to fillets on beams or timber: cf. sense 2 above.
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1859 T. L. Donaldson Handbk. Specif. 51 All the roofs..to be thoroughly rendered..with lime and hair mortar on counter lathing.
1880 J. Leaning Quantity Surv. 60 Filleting and Counterlathing to Partitions.
1886 H. C. Seddon Builder's Work 242 Counter-lathing.
This entry has not yet been fully updated (first published 1893; most recently modified version published online June 2019).
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