Cavity lintel, 150mm bearing, Concrete lintel, 100mm bearing, DPC, Stops rising damp, minimum 150mm above ground level, Partial fill insulation, Must build blockwork first, joints taped and batts are bonded, Retro-fit insulation, Blown in at a later date, EWI insulation, Fitted on external leaf, Vertical damp course, Prevents ingress of damp up openings, Cavity tray, Installed whenever a cavity is bridged, at an abutment or parapet wall, directs water outside., Weep holes, Allows moisture to leave the cavity, DPM, Stops damp rising through the floor, Wall ties, 450mm x 900mm spacings, Expansion wall ties, Allows movement on long lengths of masonry, Restraint straps, Ties masonry to components like roof and floor. Prevents lateral movement., Wall plate, Spreads the weight of the roof down the masonry, Gable end, Proprietary wall starters, Where new masonry is attached to old masonry., Air bricks, Allows air flow to enter the build, Architects drawings and specification, Where we can find information on components, Window sill, Direct water to outer leaf under a window., Full-fill insulation, Allows air flow through the fibres., Cavity closer, Seals cavity at an opening.

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