Catalogue R2 illustrating and describing metallic building materials for outside use, 1912 / Metallic Roofing Coof Canada. . n this particular is to he pennywise and pound foolish. For a permanently watertight roof we recommend four inches end-lap and twofull corrugations side-lap. One-and-a-half corrugations side-lap may he sufficient,especially on fairly steep roofs, but it has not proven its worth as has the twocorrugations side-lap. For siding one or two inches end-lap and one corrugationsidedap is sufficient. We will figure on any amount of lap our customers desire, as, owing to the waywe
Catalogue R2 illustrating and describing metallic building materials for outside use, 1912 / Metallic Roofing Coof Canada. . n this particular is to he pennywise and pound foolish. For a permanently watertight roof we recommend four inches end-lap and twofull corrugations side-lap. One-and-a-half corrugations side-lap may he sufficient,especially on fairly steep roofs, but it has not proven its worth as has the twocorrugations side-lap. For siding one or two inches end-lap and one corrugationsidedap is sufficient. We will figure on any amount of lap our customers desire, as, owing to the waywe finish our sheets, they can be laid with one-half, one, one-and-a-half or two corrugations side-lap. In laying corrugated sheets with one-and-a-half corrugations sidedap, reverse everyother sheet, making all exposed joints in the bottom of the corrugations. ESTIMATES Send us the size of your roof or sides, and we shall be glad to give you a completeestimate of the ost of covering, submitting alternative figures for different gauges and side-laps. [f you prefer to make your own estimate, see pages is and 1!>. 17. ESTIMATING TABLES T^HE following tables show the required number of 2| x f inch corrugated sheets, 33inches wide, to go across routs with ridges of the lengths shown. In addition toallowing for side-laps, these figures allow for one inch turn-down at each end of roof. If exact required length of ridge is not shown, take next longer length. Allowing for Two Corrugations Allowing for One-and-a-half Corrugations Side-lap. Side-lap. Length of No. of Length of No. of Length of No. of Length of No. of Ridge. Sheets. Ridge. Sheets. Ridge. Sheets. Ridge. Sheets. Up to 9 ft. 3 in. 4 Up to 55 ft, 4 in. m Up to 9 ft. 8 in. 4 Up to 58 ft. 4 in. 24! 10 .1 4 - 4-1. « 56 .. 6 .. 25 10 r, 10 4J „ 59 » 6 M 25 - 11 M 6 .. 5 57 .. 7 •• 25-. „ 12 m 0 .. 5 ,. 60 r. 8 25! 12-7 ,. 5! 58 ,. 9 n 26 M 13 M 2 .. 5. I. 61 H 11 - 26 . 13 m 9 .. 6 .. 59 .. 10 .. 26. 14 M 5 I. 6 ., 63 m
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectroofing, bookyear1912
