Purlin
A horizontal beam parallel to the ridge of a roof, joining the rafters or roof trusses.
Please note that this is the term as it stands in the original IALA Dictionary edition (1970-1989)
A horizontal beam parallel to the ridge of a roof, joining the rafters or roof trusses.
Please note that this is the term as it stands in the original IALA Dictionary edition (1970-1989)
ampere
International Association of Marine Aids to Navigation and Lighthouse Authorities - AISM