Roof Parapet Details - PowerPoint PPT Presentation

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Roof Parapet Details

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  1. Roof Parapet Details

  2. Parapet Walls • Walls that extent above the roof of a building • Used primarily where “store front” design is desired • Used in conjunction with balloon framing • Balloon framing withstands wind & seismic forces structurally better than platform framing • Deters fire from spreading between buildings

  3. Parapet Wall Construction Materials • Wood Frame • Balloon frame typical • Concrete • Poured in place • Tilt up panels • Masonry • Solid masonry

  4. Wood Parapet Walls • short wall extends above the finished roof • common in store fronts • generally incorporates balloon framing WOOD

  5. Preventing Water Leakage (Wood Design) • Metal Coping • galvanized iron/aluminum or baked enamels finishes • 10’ soldered joints or mastic sealants • Reglet • metal member fastened to studs which allows flashing to snap into place • Flashing • metal member near roof line, building paper raps up the wall under flashing

  6. Concrete Parapet Walls • Concrete Poured in place • Concrete Tilt up slab CONCRETE

  7. Masonry Parapet Wall concrete/metal cap (called coping) waterproofing reglet Terms to Know 1--Coping 2--Reglet 3--Flashing 4--Cant strip 5--Ledger flashing building paper cant strip roofing sheathing roof joist joist hanger bolt wood ledger bond beam

  8. Coping Materials Precast • Preformed cast concrete • single or double sloped top surface (wash) • Brick paver • special design with sloped top edge • Metal caps • Aluminum • Baked enamel finished metal • Galvanized sheet metal Brick Pavers Metal

  9. Reglet Applications and Details

  10. Reglet Applications and Details

  11. Reglet Applications and Details

  12. Drafting A Detail More Notes Parapet Wall Detail • Omit all (OR AS REQUIRED) portions of notes on drawing • 26 GA GI METAL COPING • 26 GA GI FLASHING • 30# BUILDING PAPER • 5/8” CDX PLYWOOD SHEATHING • 2X10 ROOF RAFTERS @ 24” OC • R19-6 1/2” CRAFT FACED FGL INSULATION • 4X8 WOOD LEDGER W/ 3/8”  X 8” AB 4” MIN EMBEDDED @ 32” OC