Open-Tank Process c re oaoUng- 

 plant erected by the Bryant 

 Paper Company, Kalamazoo, 

 Mich., under the direction of 

 Mr. F. W. Sutherland, in 

 operation /or several years. All 

 structural wood exposed to de- 

 coV.ti creosoteJ by this mill. 



Creosoted Wooden Roofs for Textile- and 

 Paper-Mills are Economical and Durable 



There has been much discussion, 

 pro and con, on the advisability 

 of using creosoted planking for 

 roofs over weave-sheds of textile- 

 mills and machine-rooms of 

 paper-mills. To clarify the situa' 

 tion the following authorities are 

 quoted, viz. : 



Dr. Herman Von Schrenk, 



St. Louis : 



"The very severe humidity conditions, 

 particularly in the weave-sheds, indicate 

 that the use of untreated yellow pine will 

 in many cases probably be impractica- 

 ble, no matter how high the grade; in 

 other words, untreated pine will doubt- 

 less fail by decay, due to the extraordi- 

 nary conditions, in spite of the greatest 

 care. This naturally leads to a discussion 

 as to the possibility of artificially pre- 

 serving the timbers, particularly the roof- 

 planking. One naturally thinks first of 

 all of creosote. An eflfective way of using 

 creosoted planking would consist in cov- 

 ering the creosoted timber with sheath- 

 ing, as there would be no possibility of 

 creosoted planking decaying and the 

 sheathing could be painted as often as 

 necessary. 



"One advantage of using some form of 

 treated lumber would undoubtedly lie in 

 the possibility of buying lower grades of 

 yellow pine and treating the same. The 

 lower-grade lumber could be bought for 

 much less than the 'select structural' 

 grade, and in its treated condition would 

 serve every bit as well and possibly better 

 than the untreated high-grade lumber in 

 those rooms where the high humidity con- 

 ditions make for extremely rapid decay." 

 (Lumber W(yrld Review, May 25, 1917, 

 page 26). 



F. J. HOXIE. 

 Engineer, Inspection Department, Asso- 

 ciated Mutual Factory Fire Insur- 

 ance Companies, Boston : 

 "A double roof is advisable to prevent 

 the planks from rotting in the center, the 



A "cloie-ufi" section of roof weakened to a danger-fiotnt 

 due to decay of planking. 



iCouTtes]) American Lumberman.) 



outer planking BEING THOROUGH- 

 LY CREOSOTED and separated from 

 the inner by mopped, tarred paper." 

 (American Lumberman, June 23, 1917, 

 page 41). 



F. P. SHELDON & SON, 

 Engineers and Architects, 

 Providence, R. I. : 

 "The roof should be made thick 

 enough according to the accompany- 

 ing curves to prevent the occurrence 

 of condensation upon its under sur- 

 face. Secondly, it should be protected 

 against decay by proper preservative 

 treatment." 

 (Engineering News-Record, July 5, 

 1917, page 29). 



Creosoted wood does not increase 

 the fire-hazard. When thoroughly 

 seasoned after treatment it will not 

 ignite more readily than untreated 

 wood and in fact treatment with 

 creosote tends to retard combustion. 

 Lumber creosoted by the Open- 

 Tank System with a proper grade of 

 refined coal-tar creosote oil will not 

 bleed or exude oil when exposed to 

 temperatures prevalent in machine- 

 rooms of paper-mills and weave- 

 sheds of cotton-mills. 

 CARBOSOTA— Grade-One Liquid 

 Creosote Oil is derived from pure 

 coal-tar and refined especially for 

 use by the Brush Method and in the 

 Open-Tank System of treatment. It 

 is universally recognized as the 

 standard and specified by the largest 

 consumers. 



(Note : It is necessary that all wood to be 

 treated by the Brush or Open-Tank meth- 

 ods should be seasoned until air-dry). 



Booklet regarding the CARBOSOTA treatment free upon request 



The ^0l0t Company 



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