Roofs Without A Continuous Eave

The efficient design and easy installation of the eave vent translate into cost savings from lower labor costs and decreased heating and cooling costs.

Roofs without a continuous eave.

Over the roofing paper felt along the rake edge. The total venting space should equal 1 150 of the floor space. A typical metal roof overhang may be 2 to 4 inches or even less. The proper slope for guttering is per 5 to 10 feet.

One advantage is that they re incredibly efficient. These fixed venting units have a lot of advantages over the other venting options. Over the roofing paper felt along the eave edge over the roofing paper felt along the rake edge. Venting drip edge basically combines continuous soffit vent with an extended drip edge.

On the other end of the eave there ll be excess tarp hanging off the eaves which you can trim if you like. A passive ventilation system should have air inlets at the base of the roof usually in the soffits and outlets in the peak or gables. Sometimes a home without eaves or soffits will use ridge vents. Construct a hidden roof intake vent at the top of the building wall by removing the wall top trim or top siding board cutting away any building sheathing or blocking at the wall top nailing 1 spacer blocks 16 on center nailing a new spaced out wall top trim board along the roof eaves and screening the opening against insects.

Techni flo ev vented eave fascia is a one of a kind design that creates airflow to the eave. Techni flo iv intake vent creates airflow for roofs without an eave. So as aedi says treat the walls like a steep extension of the roof and it could work. There are many such vents on the market and they re available at most lumber stores.

The easiest and best way to add ventilation to your roof without getting into the expense of a profile change is installing a venting drip edge. Gutters should be installed by screwing or spiking them. Most metal roofing is installed with little or no overhang either on eaves or gable edges because it tends to bend under heavy weights. Be sure to leave enough slack to attach this side to the house just under the eave for a snug fit.

The map at right which is based on table r806 4 of the irc lists the minimum r values required to prevent condensation in unvented assemblies in various climate zones.