Flat Roof Parapet Wall Detail

See more ideas about parapet architecture details construction drawings.

Flat roof parapet wall detail.

Nov 30 2014 explore alex radford foster s board parapet detail on pinterest. 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. Unlike standard exterior walls parapet walls are exposed to the elements on three sides. Flat roof detail masonry cavity wall flat roof insulation above and between joists.

Parapet walls behave differently to conventional cavity walls because of their location at the very top of a building where both skins of the parapet are outer skins and as such are exposed to moisture. Traditionally constructed parapet walls can become saturated with rain and are also subject to extremes of heat and cold leading to expansion of the masonry. Parapet detail masonry cavity wall flat roof with parapet insulation above joists. 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.

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. Roof membrane temperatures ottawa canada summer day. To wall sloped roof no overhang ledger support. 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.

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. Parapet detail masonry cavity wall flat roof with parapet insulation above joists. Timber frame flat roof 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. Exterior wall parapet rafters prep. 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. Courtesy of max baker and the national research council of canada.