Drainage Strips Siding

A 1 8 gap created by the drainage strip keeps dryvit and other eifs assemblies dry.

Drainage strips siding.

Paint peels off exterior sheathing gets wet siding can warp and your house wrap becomes saturated. James hardie recommends that you consult with your design professional if you have questions regarding exterior wall drainage on your single family project. Recommends installing a 90 efficient drainage plane or a 3 8 inch air gap i e. The water absorbed by the felt papers from the base coat of stucco caused the papers to swell and expand.

Use with corrugated lath starter strip as a bug screen wrapped starter strip at terminations. Corrugated lath strip highlights low cost drainage and ventilation for siding that prevents mold and entrapped moisture. This minimizes the potential water and vapor penetration of the exterior wall. Meeting enhanced drainage needs in areas with substantial exposure to wind driven rain dupont tyvek drainwrap can enhance drainage behind claddings such as primed wood fiber cement siding and foam board applied over flat substrates.

With stucco claddings the drainage space was traditionally provided by using two layers of asphalt impregnated felt paper. Watairvent furring strips are manufactured from a mold resistant non absorptive composite material and their dual vertical and horizontal channels allow for dual drainage and cross ventilation. The key is to isolate the house wrap from the siding to create a drainage plane. Rainscreen between flat to wall siding and the water resistive barrier as a best practice.

Drained eifs can be used in nearly every climate. An eifs drainage strip at terminations protects this air gap from being sealed off. Quarrix furring strips provide both a vertical channel for air and moisture to vent and drain out as well as a horizontal channel to allow air movements. Lightweight 50ft rolls are installed with staples and trim with a utility knife.

Drainage is created in two ways. With vinyl and aluminum siding the drainage space is more pronounced and furring is not necessary. The sturdi strips hold your siding away from the wall to allow trapped moisture to drain away. Adhesive applied in vertical strips creates a drainage gap in the field of the wall.