Vented Roof Sheathing

Cornell ventilated roof sheathing allows ventilation in all directions which is most important on buildings with hips and valleys or other obstructions. According to most reports the effect of windwashing on mineral wool insulation especially denser types of mineral wool is less of a problem than the effect of windwashing on fiberglass insulation. Ventboard is a proprietary innovative sheathing panel for roofs siding and flooring.

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Small solid wood spacers occupy only 8 of the panel area leaving 92 ventilated.

Vented roof sheathing.

Controlling ice damming by keeping the roof cold. The spacers are less than 12 apart in both directions which greatly reduces the flexibility of the sheathing. A strong resilient roof is a home s first line of defense when the roof deck is exposed to weather. If you have a ventilation channel above the comfortboard you ll get some windwashing.

The edges of the wood panels are rabbeted to provide for expansion and contraction of the wood while allowing the foam edges to be installed tightly to achieve thermal integrity across the entire roof deck. There are three extensive patents filed. Removing moisture from roof cavities structural members sheathing and insulation. Optimal cooling and ventilation through 92 open air space.

Patent pending 12 987 832 patent pending 13 016 320 and patent pending 13 539 919. There are traditionally four main reasons for venting a roof. Zip system roof assembly combines our revolutionary integrated sheathing and flashing tape or liquid flashing to provide a sealed roof for protection against moisture intrusion during construction or if high winds strip the roof covering away. Enhancing roofing material life span by reducing sheathing temperature.

Additionally ventboard now has an international patent pending pct us2011 048786.

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