Cobra Vent Air Space Behind Siding

The top and bottom vent was consistently drier and was able to dry out injected water much more quickly.

Cobra vent air space behind siding.

Cobra rigid vent 3 exhaust vent for roof ridge allows heat and moisture to escape at the ridge. Don t know the price just heard that its very expensive. Ideally wood siding should be installed over furring creating a drained and vented air space between the drainage plane and wood siding. Venting at bottom of rainscreen wall via continuous airspace behind water table.

It s the vented part of this equation that has gerald pehl thinking. 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. A vented rainscreen an air gap behind the siding has become a standard detail in many new houses. The devil is in the details in this case the air intake and flow behind the skirt board.

It creates an air space so that the cedar shingles can dry out from underneath. 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. Air can easily enter behind the back bottom edge of the water table and flow up through the rainscreen air space. Other claddings like wood siding need help.

If you have ever seen cobra brand conceiled ridge vent its basically the same material just in bigger rolls. Skeptics said that is because your walls may not have been built identically the same. 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. 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.

A well ventilated air space between sheathing and cladding is an important part of the strategy needed to allow walls to shed moisture in all seasons and conditions. Some sidings including vinyl aluminum and brick veneer are inherently self ventilating. Off the wall surface. 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.

It is about 3 4 thick and mosly air. Drainage planes building paper house wrap etc allow any moisture that does accumulate behind siding a chance to drain away harmlessly. It helps remove moisture that works its way through the siding and in the process helps siding last longer. 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.

It provides 18 sq. We re using benjamin obdyke home slicker a plastic mesh matrix that spaces siding about 1 4 in.