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SPECIFICATIONS FOR RAILWAY BUILDINGS J. W. ORROCK, Chairman;

A. M. GRIFFIN, G. A. BELDEN,

F. R. JUDD, F. M. DAVISON,

A. C. IRWIN,

Sub-Committee.

The Committee presents for discussion the following Specifications.

SPECIFICATIONS FOR RAILWAY BUILDINGS

SECTION 9

Painting and Glazing 1. General. Under the heading of "Painting' shall be included the following:

(a) Painting and finishing exterior and interior woodwork.
(b) Painting structural steel and iron work and all ornamental

iron work.
(c) Painting exposed sheet metal work and rain conductors.
(d)

Painting plastered surfaces
Painting brick and concrete wall surfaces and concrete

ceilings.
(g) Painting and lettering signs, and lettering on doors, etc.

(h) Painting radiators, piping, etc. Under the heading of "glazing" shall be included the furnishing and setting of glass in window, door, transom and ceiling sash, including metal sash, and furnishing and setting glass in skylights and marquises.

The Contractor shall furnish all labor, tools, equipment and everything necessary to complete the painting and glazing required. The equipment shall include all ladders, scaffolding or staging necessary to execute the work. No ladders, scaffolding or staging shall be placed where they will interfere with the safe operation of trains and in buildings partially or wholly occupied by the Company and in which painting is in progress, the Contractor shall take proper precautions to protect the public and employees of the Company from any and all damage from his operations. 2. Materials.

Paints, stains and varnishes shall be of a brand acceptable to and approved by the Engineer, and shall be delivered at the site in the original unbroken factory containers with labels intact. Paints shall be furnished in ready mixed form and shall be thinned only in accordance with the directions furnished by the manufacturers or as directed by the Engineer. Thinners shall be pure raw linseed oil or pure spirits of turpentine or a mixture of these two. Benzine, naphtha, gasoline or coal oil will not be allowed on the work or mixed with any of the materials used. Paints not otherwise specified may consist of pure raw linseed

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oil and white lead, properly tinted, each coat to be of slightly different shade, and the final coat to be of a shade and color approved by the Engineer.

Enamels shall consist of long oil, easy flowing, durable varnishes, that remain white, set dust free in six hours and hard in twelve hours, capable of being rubbed in two days.

Interior wood stains shall be of pure color, with linseed oil vehicle, permanent as to shade, sharp and clear in tone and capable of deeply penetrating the surface.

Shingle stains shall be of a pure color with creosote or other wood preservative as the vehicle, and shall be permanent as to shade and deeply penetrating

Varnishes shall be oil and gum goods that will withstand hard use and not show white or dust from the surface. 3. Application of Paint.

Only careful and skilled workmen shall be employed and special care shall be taken to avoid spattering, or setting of pots where they will disfigure the finished work. Canvas and building papers shall be spread where directed by the Engineer in order to protect finished or unfinished work. Paint shall be kept thoroughly stirred while being applied. 4. Preparing the Surface.

Woodwork shall be carefully hand-smoothed and nail holes, cracks or other imperfections of the surface shall be puttied after the priming coat is applied.

Paints, fillers, stains or varnishes must not be applied to wet, frosty or rusty surfaces, to wood showing sand paper marks or to surfaces not properly prepared. Knots, pitch pockets or sap shall be completely coated with first quality pure orange shellac before any paint is applied. Castings shall be filled with an iron filler and smoothed with emery and all imperfections treated and faced before applying the first coat of paint.

Brick, concrete, and plastered surfaces shall be absolutely dry before any paint is applied. Such surfaces shall be thoroughly cleaned with brushes to remove any loose material. Concrete floor surfaces shall be absolutely dry and free from oil, grease, dust, loose particles or any foreign matter that will in any way interfere with the most perfect penetration of the paint into the pores of the surface. 5. Time for Drying.

Each coat of paint shall be given suffcient time to dry hard before the next coat is applied. 6. Weather and Temperature.

Exterior painting shall not be done during damp or freezing weather, and all fresh work shall be protected from damage. For interior work the temperature shall not be allowed to fall below sixty (60) degrees Fahrenheit, while paint is being applied or while it is drying.

7. Priming Coats.

In general all exterior woodwork shall be given one priming coat of the same paint that is to be used for the finishing coats, thinned with pure spirits turpentine and pure raw linseed oil, as directed. This priming coat shall be applied as early as possible after such woodwork is erected, and well brushed into the pores of the wood.

Priming coats for window and door frames, structural steel and iron work, and the back of paneled wainscoting and partitions shall be applied in the shop before the wood or metal is subjected to dampness.

Priming of interior woodwork, plastered, concrete and brick surfaces will depend on the nature of the surfaces and the finishing coats to be used, as hereinafter specified. 8. Painting Exterior Wood Surfaces.

All exterior wood surfaces of every description, unless otherwise noted, shall receive, in addition to the priming coat, two (2) coats of lead and oil paint of approved brand and color. The third coat shall consist of the ready mixed paint as it comes from the container used without thinning.

Unless otherwise directed, exterior doors shall be painted three (3) coats on both sides, except where interior woodwork is to be varnished, in which case the outside only will be painted and the inside finished as described in paragraph 11. Tops and bottoms of doors shall be painted three (3) coats. 9. Finishing Interior Woodwork.

Interior wood surfaces shall be finished by one of the following methods or by a combination of these methods, as may be designated or as directed by the Engineer:

1. Painting with three coats of lead and oil paint.
2. Finishing in natural wood colors.
3. Staining and varnishing.

4. Enameling.
10. Painting Interior Wood Surfaces.

Where interior wood surfaces are to be painted, such surfaces shall receive, in addition to the priming coat, two (2) coats of an approved brand of lead and oil paint, using such colors as will conform to the Company's standard practice or as may be directed by the Engineer. 11. Staining and Varnishing Interior Wood Surfaces.

Where interior wood surfaces are to be finished with varnish, the work shall be done as follows:

(a) Natural Finish:

1. (For OPEN Grain Woods, Such as MAHOGANY, Ash, CHESTNUT, ETC.):

The surface shall be sandpapered smooth and all nail holes stopped with putty, using putty colored to match the wood. Then apply one coat of paste filler and before the filler has hardened, rub off clean, rubbing across the grain. Allow the filler to harden 24 hours and sandpaper with fine sandpaper. ext apply one coat of orange or white shellac, depending on whether a dark or light finish is desired, and two coats of first quality interior varnish. At least 48 hours shall be allowed for drying between coats. The final finish shall be dull or polished, as directed by the Engineer. For a dull finish, rub with powdered pumice and water 72 hours after the final coat is applied.

2. For finishing close grained woods, such as pine, cypress, birch, maple, etc., use the method described for open grained woods with the omission of the paste filler.

(b) Stain and Varnish Finish:

1. (FOR OPEN Grain Woods).–After sandpapering the surface and puttying nail holes, apply one coat of oil stain wiped off, one coat of filler rubbed off, one coat of orange or white shellac, and two coats of first quality interior varnish. After filler has hardened 24 hours, sandpaper as described in paragraph (a) of this section, and finish final coat of varnish with either dull or gloss finish, as directed.

2. (For Close Grain Woods).—Apply one coat of approved oil stain, one coat of shellac and two coats of interior varnish, allowing each coat to dry before another is applied. Finish final coat of varnish with dull or gloss finish as directed. 12. Exterior Varnishing.

Where exterior woodwork is to be finished with varnish, or with stains and varnish, first apply one light coat of a mixture of 25 per cent. pure linseed oil and 75 per cent. pure spirits of turpentine, allow to dry and sandpaper, and then follow the specifications as given in paragraph 11, except that exterior spar varnish shall be used and the coat of shellac omitted. 13. Enameled Finishes on Wood or Plastered Surfaces.

Where enameled finishes are called for on wood or plastered surfaces, these surfaces shall be given five (5) coats of an approved enamel, thinned and applied in accordance with the manufacturer's instructions. 14. Finishing Wood Floors.

Wood floors shall be finished by one of the following methods as directed by the Engineer:

(a) Oiling with linseed oil (for woods such as maple or yellow pine).

Floors to be oiled shall be given three (3) coats of linseed oil, heated as nearly as possible to the boiling point. Ample time for absorption shall be allowed between each coat, and the floor shall not be used until the third coat has thoroughly dried.

(b) Finishing with varnish (for woods such as yellow pine, oak, etc.).

Floors to be finished with varnish shall be given one coat of floor varnish, thinned by adding one pint of turpentine to each gallon of varnish, and two coats of first quality elastic floor varnish. The floor shall be lightly sandpapered with fine sandpaper after the first varnish coat is dry. Oak floors shall be given one coat of paste filler, rubbed off, before the first varnish coat is applied. 15. Painting Structural Steel and Iron Work.

All structural steel and iron work, including pipe railings and castings, in addition to the shop priming coat specified in the section of these specifications covering “Steel and Iron Work” shall be given two (2) coats of the Company's standard exterior or interior paint as directed. Surfaces in contact or inaccessible after erection shall be given one (1) field coat before assembly or erection. 16. Painting Sheet Metal Work.

All sheet metal work (other than copper), including flashings, gutters, rain conductors, skylight frames, and metal roofs, shall be given three (3) coats of an approved metal paint, of such colors as may be directed by the Engineer. Surfaces of tin or galvanized sheet metal work and iron and steel in connection therewith, shall be thoroughly cleaned · of grease, oil and traces of soldering flux before any paint is applied. Surfaces that will be unexposed after being placed and the under side of metal roofing shall be given one coat of paint before being installed. Before the priming coat is applied to galvanized sheet metal work, the surfaces shall be washed with a weak solution of vinegar, or a solution of sal-soda and water, using one pound of soda to three gallons of clean water. This wash shall be allowed to dry twenty-four (24) hours before the priming coat of paint is applied. Surfaces inaccessible after erection shall be given a priming coat and one other coat before being erected Paint shall be applied with hand brushes and well rubbed in. No dipping will be permitted. 17. Painting Plastered Surfaces.

After they are thoroughly dry, plastered walls and ceilings shall be given one coat of approved alkali-proof wall size and two (2) coats of approved interior wall paint with flat or eggshell finish, applied strictly in accordance with the manufacturer's directions. Each coat shall be allowed to dry not less than twenty-four (24) hours before the next coat is applied. 18. Painting Brick and Concrete Walls.

Interior brick and concrete wall surfaces except in basements and roundhouses shall be given three (3) coats of lead and oil flat wall paint of colors selected by the Engineer. Care shall be taken to see that these surfaces are free of all moisture before any paint is applied.

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