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1952 Theatre Catalog, 10th Edition, Page 232 (198)

1952 Theatre Catalog, 10th Edition
1952 Theatre Catalog
1952 Theatre Catalog, 10th Edition, Page 232
Page 232

1952 Theatre Catalog, 10th Edition, Page 232

FIG. 16. End Wall Flashing: Remember that this process is similar to applying the ridge roll.

flange to hold it in place. Nail the overlapping siding and the apron on the roof sheet on 8" centers through the flange and the top of the crimp nearest the wall.

End wall flashing is malleted between crimps and nailed with aluminum nails and Neoprene washers, the same as for the ridge roll.

Formed end wall flashing may be used as an alternate.

Gombrel Flashing

Gambrel flashing is also made of 14inch-wide flat aluminum sheeting formed into an angle with seven-inch flanges. The lower apron is applied over the lower course or slope, and malleted and nailed, as with the ridge roll. Nail through the tops of the crimps with aluminum nails and Neoprene washers. Formed gambrel flashing may be used as an alternate.

FIG. 17. Gambrel Flashing: Note that the nails are driven only through the top of corrugation crimp.

Curved Roofs

Five-V crimp roofing is not recommended for curved roofs. Refer to curved roofs in the instructions for corrugated applications.

Applying Siding

Apply the 5vV crimp sheets to side walls having either solid sheathing or open girths, with a maximum spacing of 12" between boards. It is recommended that at least 0110 layer of low pound asphalt-saturaled felt he applied between the siding and the girths or supports. Nail on approximately 12" Centers along the top of the outside overlapping crimp and the center crimp on each girth board. Additional nailing along the girths in the flat areas between


crimps is recommended for structures having large doors or openings subject to high winds which may exert considerable pressure.

Start sheets at the bottom and work

upward. Where more than one course is required, lap the upper sheets a minimum of four inches over the lower sheets. Corners can be finished in one of two ways: the sheets can be nailed at the corners and capped with a corner angle fitting formed from a flat sheet. or the sheet can be bent around the


FIG. 18. Siding Application and Finishing Corners: The approved methods are clearly illustrated here.


To determine the quantity of roof sheeting required for plain type roofs such as a single slope shed, plain gable, and plain gambrel, the first step is to find the number of rows of sheeting needed. If a single row of sheets is sufficient, select the roof'sheet length which will cover the length of each slope, including the cave overhang. If a single sheet is not of sufficient length to cover the slope, additional courses are then necessary.

Multiple Courses

Select the nearest standard lengths to cover the length of the slope, allowing for end laps and overhang at the cave. For example, if the slope length is 13/5", it is obvious that the longest standard length of sheet, which is 13', would not cover the slope. The logical solution, therefore, would be to use two 7 lengths, which would allow for a sixinch Hid lap and a onesinch overhang at the cave. After determining the number of rows or courses needed, find the roof length, including allowance for turn-down at the gable ends. Divide the sheet coverage width, selected from

Figure 2, into the roof length to determine the number of sheets per row.

In calculating the number of sheets per row, divide sheet coverage width (in feet) into the length of the roof (in feet only), or sheet coverage width (in inches) into roof length (in inches only). After finding the number of sheets per row, total all rows of equal length for all slopes. List the total number of sheets for each individual length as the requirements for the job.

Estimating Siding

Measure the height of the surface to be covered to determine the sheet length and the number of courses, allowing for the minimum end lap of four inches. Measure the length of the building or fence, allowing for the extension to turn the corners, and determine the number

of sheets from the coverage measure:

ment as listed in Figure 2. Common practice is to ignore window areas in making siding estimates, but door areas may be deducted.


The theatre may be attractively fenced with 10' or 12' lengths of either corrugated or 5-V crimped sheets, set vertically and braced at intervals with stone pillars or creosoted posts. This fencing is wind-resistant, has a long life expectancy, and never has to be painted.

For screen towers, corrugated aluminum sheeting provides a handsome, maintenance-free outer surface which cannot rust, streak, or stain. The use of aluminum may simplify screen tower construction to a marked degree by strengthening it without adding to its overall weight. A fistressed skinll type of construction, somewhat similar to that used in aircraft building, may be employed with less inter-bracing in the tower than would be normally required. When the tower is sheathed, sheets of aluminum may be lapped to do away with calking of the boards. The amount of lumber required for construction may be thereby reduced, and the life of the lumber used lengthened by protecting it from moisture.

Moreover, aluminum may be used on the screen area, itself, to obviate the need for replacing sections made unserviceable by the cracking or breaking of pigment used on the screen surface. Because aluminum is a null-rolled metal, it must be re-clcanod before it can be painted. But once it is treated, in a manner to be described, below, paint will adhere to it better than it will to many other materials used for the screen surface.

Other Uses

Either an aluminum Hhot moppcd" built-up roofing or the conventional shooting may be used on the roof of tho boxofficc and other buildings. The term Hhot moppch refers to built-up roofs in which hot asphalt is moppod on the roof surface, and a shoot of aluminum applied over it. In some cases, it may be desirable to apply a layer of roofing felt first to giVo a smoother base.

1952 Theatre Catalog, 10th Edition, Page 232