Cobra Vent Air Space Behind Siding

At the top of the wall i used a gap between the top trim piece of the siding and the rake board as a top vent.

Cobra vent air space behind siding.

Air can easily enter behind the back bottom edge of the water table and flow up through the rainscreen air space. A vented rainscreen an air gap behind the siding has become a standard detail in many new houses. It helps remove moisture that works its way through the siding and in the process helps siding last longer. Don t know the price just heard that its very expensive.

Cobra rigid vent 3 exhaust vent for roof ridge allows heat and moisture to escape at the ridge. Inches per linear foot 67 720 m 2 lm of net free ventilating area and its unique easytear sizing feature allows you to hand tear product in 3 76 mm increments no knives necessary and less waste. The first part of the system is the heavy duty sturdi strip furring strips which hold the siding away from the wall creating the necessary minimum capillary break 3 8 or 10mm that will allow moisture to drain away. So we open the top vents on the bottom vent only wall and sealed the top vents of the top and bottom vent wall for the 3rd year of the study.

Venting at bottom of rainscreen wall via continuous airspace behind water table. The 7 16 thick sv 3 rainscreen siding vent solves these problems with a minimum amount of work and expense. It creates an air space so that the cedar shingles can dry out from underneath. Off the wall surface.

The devil is in the details in this case the air intake and flow behind the skirt board. We re using benjamin obdyke home slicker a plastic mesh matrix that spaces siding about 1 4 in. If you have ever seen cobra brand conceiled ridge vent its basically the same material just in bigger rolls. Some sidings including vinyl aluminum and brick veneer are inherently self ventilating.

Brick veneer with a drainage plane drainage space and condensing surface with wood siding the drainage space is typically intermittent and depends largely on the profile of the siding. Match the sv 3 with cor a vent s sturdi strips polyproylene furring to create the siding vent system the first commercial rain screen system on the market. Other claddings like wood siding need help. The air space behind the shingles allow moisture that soaks in the front of the shingles to dry to the backside as well as the front.

It provides 18 sq. It is about 3 4 thick and mosly air. It s the vented part of this equation that has gerald pehl thinking. Skeptics said that is because your walls may not have been built identically the same.

Drainage planes building paper house wrap etc allow any moisture that does accumulate behind siding a chance to drain away harmlessly. The ventilated cladding allows drying of both the siding from the back surface and the wall assembly through the sheathing and building paper into the air space behind the siding.