McGhee & Co. Roof Thatchers llc

    © 2017 McGhee & Co. The Roof Thatchers LLC

    Glossary

    Bed

    A prepared heap of long straw, sedge or rye, from which a yealm is drawn.

    Binders

    See "sways".

    Bottle

    A yealm of straw tied at the small end, used for setting eaves and gables.

     

    Broaches

    See "spars".

    Brow Course

    The first course of reed; after the eave is set in. Determines the pitch of the roof.

    Bunch/Bundle

    A unit of water reed approximately 24" (600mm) or continental at 39" (1m) in circumference at the tie.

    Butt

    The lower end of a bundle of straw or reed.

    Butting

    Dressing the butt ends by dropping onto a hard, clean surface.

    Casing

    To rethatch, with any material, over the existing thatch after it has been stripped to a reasonable level and refastened to the rafters.

    Course

    A horizontal layer of reed or straw thatch.

    Crooks

    Made from quarter inch or three eighths iron rod varies from 8" to 12" in length. Pointed at one end, with a forged right angle hook on the other to hold the sway. Driven into the rafters to hold the sway.

    Cross Rods

    Hazel rods split and used for ornamentation between liggers.

    Face

    The surface of the roof.

    Fleeking

    A woven mat of water reed used as an alternative to battens in exposed rafter situations; rarely used now.

    Flashing

    Cement or lead sheeting fixed over the thatch and onto brickwork at the chimney or wall abutments.

    Gable

    FlueThe finished edge of the thatch hanging over the gable end.

    Gable Top

    A yealm of ridging material without pronounced taper at either end forming the topmost part of the ridge.

    Gadd

    Length of hazel nut wood before splitting.

    Goosenecks

    See "spars".

    Hooks

    See "crooks".

    L Pins

    See "crooks".

    Ledgers

    See "sways".

    Liggers

    Rods of split hazel (4' to 5') used on the outside surface of ridges, and in the case of long straw, on eaves and gables.

    Long Straw

    Threshed wheat straw prepared by hand.

    Pattern Pieces

    See "cross rods".

    Nib

    Portion of the roof beside window or chimney.

    Pinnacle

    A raised end of a ridge, gable, or top point of a hip.

    Prickers

    See "spars".

    Ridge

    Capping on topmost part of roof, various finishes.

    Roll Dolly

    Sausage-like roll(s) of reed or straw. 4" to 8" in diameter and of any suitable length, used to build up the ridge to a sharp apex prior to capping.

    Rye Straw

    Threshed and used for ridging.

    Saddle

    The junction of a ridge with a main coat.

    Sedge

    Used for capping a water reed roof.

    Skirt

    The side courses of a ridge thickened at the butt when used as a cut pattern roof.

    Spars

    Split hazel rods 30" pointed at each end, and twisted in the center into a 'staple' shape and used to fix 1/2 coat work or the liggers on the ridge.

    Spikes

    See "crooks".

    Spits

    See "spars".

    Sways

    Hazel rods or 1/4" steel rod used to secure thatch to the rafters in the roof. The sways are fixed by stitching with tarred cord or by hooks driven into the rafters at intervals dictated by the length of the materials to be fixed. These are coverd by each succeeding course.

    Sweep

    The forming of a valley.

    Tarred Cord

    Strong cord treated with Stockholm tar. Synthetics are also used but tying is rare as a permanent fixture. When used the sway is tied to the rafter or batten or no sway is used.

    Twisters

    See "spars".

    Verge Barge

    See "gable flue".

    Wadd

    Small bundle of material to continue the action of the tilting.

    Yealm

    A prepared drawn layer of long straw or sedge. 14" to 18" wide. 4" thick. 1/2 Coat.