Pitched Roof Parapet Wall Detail

Parapet detail masonry cavity wall flat roof with parapet insulation above joists.

Pitched roof parapet wall detail.

The most common mistake at this intersection is to allow the metal coping to but up to the wall without the application of termination metal. Introduction to green roof details a green or living roof is a flat or low pitched roof with a layer of planting over the. Architectural details residential. 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.

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. A critical and often overlooked design detail is at the termination of a parapet coping at a wall. The cure for parapetitus is continuity of the control layers and letting things move when they have to move. 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.

However these days parapets add a lot more to a flat roof than just a cosmetic detail. It bridges the cavity and discharge in the same course as the lead sheet cover flashing to the gutter. When constructing the parapet wall it is most important to fit a quality dpc with weep holes. If not fitted correctly dampness will attack the joist ends and show as damp stains on the internal wall at high level.

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.