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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