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TIE BAR |
| Heavy metal bar passing through a wall, or walls, to brace a structure suffering from structural instability. | |
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TORCHING |
| Mortar applied on the underside of roof tiles or slates to help prevent moisture penetration. Not necessary when a roof is underdrawn with felt. | |
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TRANSOM |
| Horizontal bar of wood or stone across a window or top of door. | |
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TREAD |
| The horizontal part of a step or stair. | |
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TRUSSED RAFTERS |
| Method of roof construction utilising prefabricated triangular framework of timbers. Now widely used in domestic construction. | |
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UNDERPINNING |
| Method of strengthening weak foundations whereby a new, stronger foundation is placed beneath the original. | |
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VALLEY GUTTER |
| Horizontal or sloping gutter, usually lead- or tile-lined, at the internal intersection between two roof slopes. | |
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VENTILATION |
| Necessary in all buildings to disperse moisture resulting from bathing,
cooking, breathing etc., and to assist in prevention of condensation.
Floors : Necessary to avoid rot, especially Dry Rot; achieved by airbricks near to ground level. Roofs : Necessary to disperse condensation within roof spaces; achieved either by airbricks in gables or ducts at the eaves. |
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VERGE |
| The edge of a roof, especially over a gable. | |
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VERGE BOARD |
| Timber, sometimes decorative, placed at the verge of a roof: also known as barge board. | |
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WAINSCOT |
| Wood panelling or boarding on the lower part of an internal wall. | |
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WALL PLATE |
| Timber placed at the eaves of a roof, to take the weight of the roof timbers. | |
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WET ROT |
| (Coniophora Puteana.) Decay of timber due to damp conditions. Not to be confused with the more serious Dry Rot. | |
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WOODWORM |
| Colloquial term for beetle infestation: usually intended to mean Common Furniture Beetle (Anobium Punctatum): by far the most frequently encountered insect attack in structural and joinery timbers. | |
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