R&D Report 1995-07 : Further investigations of partitions having built-in acoustic treatment. G.D. Plumb Laboratory measurements were made of the sound insulations and absorption coefficients of a range of metal-framed partitions having built-in acoustic treatment. The partitions were made using glass wool and gypsum boards. The sound insulations of the single leaf partitions having built-in acoustic treatment were considerably lower than those of comparable partitions made using mineral...
Topics: partitions, mineral, partition, glass, insulations, unperforated, perforated, wool, absorption,...

Mikey's show. It's another long one today, he covered for three other DJs plus his own slot. Much music. Some chatter. This is part the first...
Topics: Seek to understand the root. — It is futile to argue as to which single leaf, which design of...

R&D Report 1994-08 : The sound insulations of metal-framed partitions having structural loadbearing properties. G.D. Plumb The sound insulations were measured of several single and double leaf partitions. The partitions had metal frames and were capable of supporting significant structural loads. The purpose of the work was to design structural partitions that were cheaper to build than the existing masonry walls used for the construction of large studios. For some of the double leaf tests,...
Topics: structural, partition, leaf, sound, blockwork, cavity, insulations, partitions, shaftwall,...

R&D Report 1993-06 : Metal-framed partitions with reduced thicknesses: Part 2 -- Built-in acoustic treatment. G.D. Plumb Laboratory measurements were made of the sound insulations and absorption coefficients of a range of metal-framed partitions having built-in acoustic treatment. The optimum constructions for single and double leaf absorbent partitions had marginally lower sound insulations (approximately 1 dB) than those of comparable single and double metal-framed Camdens. The effective...
Topics: partitions, absorption, partition, sound, insulation, unperforated, perforated, leaf, acoustic,...

R&D Report 1993-05 : Metal-framed partitions with reduced thicknesses: Part 1 -- Narrower studs and cavities. G.D. Plumb The sound insulations were measured, in the Research Department Transmission Suite, of ten different metal-framed partitions. These partitions had narrower cavities and metal studs than those of the conventional thickness metal-framed Camden. Mineral wool had been installed in the cavities of some of the partitions and some partitions had double plasterboard skins rather...
Topics: sound, partitions, partition, studs, mineral, leaf, insulations, insulation, plasterboard, double,...

R&D Report 1994-07 : Further measurements of the sound insulations of metal-framed partitions. G.D. Plumb The sound insulations were measured of a number of single and double leaf metal-framed partitions. The purpose of the work was to develop alternative designs for partitions to that of the Camden. The Camden contains fibreboard as one of its constituent elements. The new partitions used plasterboard as the sole board material. Therefore, the new partitions were heavier than the...
Topics: partition, partitions, insulations, plasterboard, wool, narrow, leaf, sound, camden, insulation,...