Pitched Roof Parapet Wall Detail

A critical and often overlooked design detail is at the termination of a parapet coping at a wall.

Pitched roof parapet wall detail.

It bridges the cavity and discharge in the same course as the lead sheet cover flashing to the gutter. Adding a parapet wall makes a flat roof far safer than leaving the roof s edge exposed. If a building has roof access that residents use regularly for whatever reason adding a parapet greatly decreases the chance that someone could fall over the. Parapet detail masonry cavity wall flat roof with parapet insulation above joists.

Roof detail drawings includes jpeg dxf and dwg cad via download a selection of roof detail drawings including flat roof details pitched roof details mansard roof detail parapet verge ridge and eaves details. Looking at a building from the ground a parapet may seem to simply be a design choice that adds little more than a characteristic look to a building. The omittance of the termination metal leaves an opening at the top of the coping and allows for moisture infiltration at the space between the parapet. If not fitted correctly dampness will attack the joist ends and show as damp stains on the internal wall at high level.

Architectural details residential. When constructing the parapet wall it is most important to fit a quality dpc with weep holes. Parapet detail masonry cavity wall flat roof with parapet insulation above joists. The perimeter of the roof assembly insulation is wrapped to prevent interstitial airflow from the parapet into the multilayered rigid insulation of the field of the roof.

The cure for parapetitus is continuity of the control layers and letting things move when they have to move.