Slating, Boarding, and Felt are measured together, but abstracted and billed separately. Measure the length of the roof by the length on slope, and notice that, whether the roof be hipped or has gables, the area of slating will be the same. Bill the slating and boarding in squares, and the felt in yards super., the latter measured nett and so described. Describe the laps and kind of nails, whether copper, etc., and their weight per thousand.

## Slating

State the size of slates, width of lap, and kind of nails and weight per thousand.

Keep Vertical Slating separate.

## Boarding

State thickness, and if edges shot.

## Battens

Measure per square as to Boarding. Describe the size of slates and the gauge. Make the same allowances for cuttings as to Boarding (see below).

## Allowance For Double Eaves Course

Add the length of the eaves by half the length of the slates.

## Tilting Fillets

Measure per foot run, and state size.

## Cuttings

Deduct all openings in slating for chimneys, skylights, etc., and add the length of their edges by 6 inches.

Add the length by 6 inches for all irregular edges, and to both sides of hips and valleys.

Where the bottom edge of vertical slating is raking, as to a dormer cheek, allowance must be made for both cutting and double eaves course.

## Bedding Slates And Cement Hollow Fillet To Verge

Measure per foot run. If slate and a half be used in alternate courses, state it.

## Cuttings To Boarding

The same as to slating, but 3 inches wide instead of 6 inches.

## Ridges And Hips Of Tile Or Slate

Measure per foot run, and describe, including the method of fixing. Number and describe the intersections.

Measure the roll per foot run, and describe size, and how fixed, etc. Measure the lead per foot super., and bill by weight. Add to the length 4 inches for each 7 feet length, to allow for tacks and passings.

Number the mitres and intersections, and describe, as, for instance, "Bossed intersection of ridge with two hips," or as the case may be.

## Valley Boards

Measure per fool run. State size, and describe them as splayed and fitted.

## Valley Fillets

Measure per foot run, stating size.

Measure per foot super., and bill by weight. Measure the length by the width, add to the length 4 inches for each 7 feet of length to allow for clips and passings. A reasonable width to take if not specified would be 20 inches.

## Gutter Boards And Bearers

Measure per foot super., the length of the gutter by the width. State thickness of boards and size of bearers, and if framed.

## Narrow Gutter Boards And Bearers Under 6 Inches Wide

Measure per foot run.

## Rough Deal Fillet Plugged (Against Walls And Parapets To Receive Ends Of Bearers)

Measure per foot run, and state size.

Number.

## Short Lengths Of Deal Roll, Up To 30 Inches Long

Numbered, and length stated. (This may be averaged.)

Short Lengths of Rebated Drip and Narrow Riser up to 30 inches long. Number, and state depth and length. (Lengths may be averaged.)

Measure per foot super., and bill by weight. Add to the length of the gutter 6 inches for each 1 1/2-inch and 8 inches for each 2-inch drip or roll. Add sufficient at ends for the turn up or dressing over, as the case may be. Take the average width, including portions turned up against walls (usually 6 inches) and under slates (usually 9 inches).

## Cesspools

Number and describe, and the internal dimensions given, as, e.g., " 1 1/4-inch deal dovetailed cesspool, with dished hole for outlet; size, 9 inches by 9 inches, by 6 inches deep in clear."

Number.

## Copper Or Galvanised Wire Covers To Outlets

Number and describe, state gauge of wire.

Number and describe thickness of lead, diameter and length of pipe, and how many times bent. Include the tafted and soldered joint to cesspool in the description.

## Holes Through Brick Wall For Lead Socket Pipes

Number. State diameter of pipe and thickness of wall, and include making good brickwork and facings in the description.

## Soakers

Measure per foot super., stating weight of the lead. Bill by weight, and describe as "In soakers." The size of a soaker is equal to the gauge plus the lap of slating or tiling + 1 inch, by usually 8 inches wide. Take one to each course of slating.

## Soakers, Fixing Only

Number the soakers, and bill in Slater or Tiler for fixing only.

## Flashings

Measure per fool super., and bill by weight. Add to the length 4 inches for every 7-foot length, and 6 inches for every angle. Flashings are usually 6 inches wide.

## Rake Out, Wedge, And Point Flashings

Measure per foot run. Measure as for flashings without any allowances. State whether lead or oak wedges are used.

## Stepped Flashings

Measure in the same way as flashings, and with the same allowances, but keep separate.

## Rake Out, Wedge, And Point Stepped Flashings

Measure this in the same way as to Flashings, but keep it separate, and describe it as to Stepped Flashings.

## Fascia

Measure per foot run, and describe, stating thickness and width and how fixed.

## Mitres To Fascia

Number, keeping internal and external separate.

Number.

## Eaves Gutters (Cast Iron)

Measure per foot run. State size, section, and weight per yard, or give catalogue number and how fixed, and if including the clips.

## Angles

Number, keeping internal and external separate.

Number.

Number.

## Wire Covers

Number as before directed.

## Rain-Water Pipes

Measure per foot run. State diameter, or size if square, and weight per 6-foot length. Describe the ears, nails, jointing, and mode of fixing. If it is measured nett, state that it includes all short lengths.

## Swannecks, Plinth Bends, Shoes, Heads, Junctions

Number these. If their length has already been measured in with the pipe, describe them as "Extra for." State the projection of the bends. Give a p.c. value for the heads, or state their catalogue number. If any of these are purpose made, state it.

## Labour To Beamfilling

Measure per foot run. State thickness of wall and average height.