air in rnotion

The final answer to condensation is nature's own principle of air circulation. In contrast with partial, mechanical vapor barriers2i1 vsnlilation, the normal flow of air in and around any structure, is truly a simple, dynamic solution to a fundamental weather problem. Now thoroughly tested and demonstrated successful, Vilson Air-cor Roof Decking embodies the air-in-motion principle in its most complete and scientific form.

\(ilson Air-cor is a rugged 2'x 8'panel with 16" of open space at each end for air to flow freely in four air channels from panel to panelacross the entire length of any roof. Homasote boards over three 2 x 2 wood members, with batt-type insulation encased in vapor barrier paper on the lower inside, constitute the primary materials. But Air-cor is much more than this description can indicate.

Besides being the only complete answer to condensation\Wilson Air-cor Roof Decking is, in one material, a sturdy roof, the best insulation known, a sound-deadening partition, and a finished ceiling. $Tilson Air-cor is available in two different top thicknesses and four difierent ceiling finishes, including Sote Asbestos Board for fire protection. Any one familiar with Homasote Insulating-Building Boards w-ii recognize at once the advantages of this long-proven ma:erial'

The designing and production of this remarkable product illustrate a typical example of the thoroughness of research and practical testing behind each Homasote product. The Homasote Handbooknewly revised throughout all 68 pagesdescribes in detail a hundred other construction values. On each page of this fully-illustrated booklet every architect, builder, and dealer finds ideas of new consttuction and modernization that fit in with his quality plans. As is the case with N7ilson Air-cor, Homasote products are designed to give only the finest service-and yet the know-how behind each product makes every one an economy item.

S(e are proud of the Homasote Hand- See ocr book, and would like to place a copy in your hands, without cost or obligation. Kindly address your inquiry to Department M-15.

T. E. Mf,BTN (On Lecve)

II& ADAMS Maacacr