All about rainscreens greenbuildingadvisor.
How to build a rainscreen. Drained and ventilated rainscreen cladding systems allow any penetrating moisture to drain or evaporate and vent to the outside. The hpo and the bc government s building and safety policy branch which administers the bc building code have had multi stakeholder meetings to try and resolve some of these issues. Part 9 residential construction as an illustrated construction detail guide for rainscreen construction. There are two basic types of rainscreen.
Rain screen installation tips for doors and windows. Posted by chris nolan on tue nov 12 2013 11 11 am. The home owner protection of bc hpo also published building envelope guide for houses. Screening at the bottom and top of the channels excludes insects.
Rainscreen siding exterior wall build step by step. The real risk to moisture sensitive materials he adds is not from a one time soaking but from chronic exposure to small amounts of moisture. Ensure that all proposed products and systems are acceptable to the building authority having jurisdiction prior to installation. Drying with ventilation is the best way to address that he says.
Design and build beautifully and sustainably with window door trim for wood rain screen cladding. You want to be sure the rainscreen maintains a cavity during installation and the life of your building. To lower the risk of wall rot it often makes sense to provide a ventilated air gap between your siding and your sheathing. In this case it is necessary to detail the façade so that any penetrating water cannot cross the gap between the rainscreen and the internal wall construction.
It is not intended to replace professional advice. Rain screen installation tips around window and door openings. To lower the risk of wall rot it often makes sense to provide a ventilated air gap between your siding and your sheathing. Building envelope in wood frame construction.
Order materials and supplies organize tools. Remember to order 10 or extra for waste. The channels created by the furring strips make an air space that allows the back of the siding to dry out whether the source of moisture is wind driven rain capillary action or interior moisture that escapes through the housewrap.