E2SMEW3 Solid Wall Lintel Build Up Solid External Masonry Wall 215mm Aircrete Solid Wall (λ = 0.15 W/mK) Render & Insulation (λ = 0.022 W/mK) Solid Wall Steel Lintel (max. thickness 3.2mm) Lintel Architect downloads e2smew3_cad_file.dwg56.07 KB Registered Detail certificates e2smew3_certificate_0.pdf531.14 KB rcd_worksheet_255.pdf311.1 KB