Flat Roof Parapet Wall Detail

While a roof parapet wall may seem like a small detail in the grand scheme of the entire building design it can actually change the dynamic of an entire roof both in terms of cosmetic detailing and safety.

Flat roof parapet wall detail.

Furthermore parapets are often inadvertently connected to interior space via balloon framing gaps in structure or penetrations for wiring and mechanicals introducing warm moist interior air into the assembly and potential condensation. Flat roofs come in many shapes and sizes which include parapet roofs roof decks and green roofs to name just a few of the options available. Timber frame flat roof detail. Roof membrane temperatures ottawa canada summer day.

To wall sloped roof no overhang ledger support. A parapet roof is simply put when a building s outermost walls extend upwards past the roof around the edges most often by a few feet. Parapet detail masonry cavity wall flat roof with parapet insulation above joists. Exterior wall parapet rafters prep.

If you didn t get it right you concentrated the stresses at roof edges and you could suck in a parapet or tear or rip a membrane at the parapet photographs 3 and 4. Nov 30 2014 explore alex radford foster s board parapet detail on pinterest. Unlike standard exterior walls parapet walls are exposed to the elements on three sides. Courtesy of max baker and the national research council of canada.

The parapet wall needs to be tall enough for both the base flashing and the cap flashing to work together and provide the required venting. Timber frame flat roof detail. Parapet walls are a difficult detail with a long history of failure. Free cad dwg download of a parapet wall to be used in your roof design cad drawings.

Ultimately a flat roof should play a part in a total architectural composition and has the ability to enhance the aesthetic and practical outcomes of a home. See more ideas about parapet architecture details construction drawings. Flat roof detail masonry cavity wall flat roof insulation above and between joists. The drawing below shows how the parapet wall meets with the sloped roof note that the flashing extends up the parapet wall a minimum of 8.