Principles and practices of up-keep painting (1923)
E.I. du Pont de Nemours & Company, author · Chicago, Ill. ; Philadelphia, Pa. ; Boston, Mass. : E.I. du Pont de Nemours & Co., Inc. · leaf 87
ns for appropriate trim and sash colors. Roofs All shingle roofs should be painted or stained. An unpainted shingle roof is a fire hazard. The surface becomes “fuzzy,” warped and cracked, affording a ready lodgment for cinders, burning brands, etc. All paint and stain are more or less… … D C B A TORCH TESTS Effect of torch on untreated shingle A and painted shingle B at end of one- minute test. Effect of torch on untreated shingle C and painted shingle D at end of three-minute test. Note effect of paint in preventing spread of fire and retarding the charring of the wood 65
Painting, Industrial · Varnish and varnishing
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
![An illustration from St. Nicholas [serial] (1873)](https://img.insideoutlibrary.com/img/200/ia-stnicholasserial332dodg-542-715.webp)
