Practical hints to builders and those contemplating building / Facts worth considering relating to foundation, cellar, kitchen, chimney, cistern, brick-work, mortar, heating, ventilation, the roof, and many items of interest to builders.

by National Sheet Metal Roofing Co.

BROAD RIB ROOFING,

Like Our Shingles, has a nailing flange the entire length of each sheet. It forms a Continuous Rib when applied from eaves to comb with cross seams twenty-five inches apart, which gives it strength and rigidity not found in roofing where longer sheets are used. It has no protruding anchors, cleats or rivets; all nail heads are covered as perfectly as those used for wood shingles. There is no waste in using, either at comb or eaves. The Side Nailing Flange admits of the roof being fastened to roof boards with any required degree of strength. The Cross Seams are formed with a folded lock which allows for contraction and expansion. Material.—Each sheet of this roofing is made from Best Roofing Tin, or Imported Siemen’s Sheet Steel, which is hard rolled, tough, durable and thoroughly coated on both sides with the best Oxide of Iron and Linseed Oil Paint. The size of sheets are 20 × 28 inches. Tools.—We send with each order one pair of Metal Shears, one Mallet, and a Draw Tool, for which we make a charge of two dollars. These tools can be returned to us by express at our expense, and the purchaser credited, or the money paid for them returned. Important Improvements in the manufacture of Steel Sheets enable us to put this on the market at the same price as Sheet Iron Roofing, to which it is greatly superior. The Rib is formed of the Walter’s Patent Lock, and is the same we have used on our shingles for the last seven years. This Lock has been thoroughly tested, and it is significant that over 25,000,000 square feet of shingles constructed upon this plan are already in use in the United States and Canada. The application of this Lock does away with a very large proportion of the work necessary in laying standing seam roofs as ordinarily applied, such as tonging up the seams, double seaming, capping or riveting the ribs, and making and using cleats or other fastenings. This roofing costs no more than wood shingles in sections where good timber is scarce. Each sheet is made from plates 20 × 28 inches. WRITE FOR PRICES.

The National Sheet Metal Roofing Co., 510-520 E. 20th St., N. Y. City.