Wind Roof Eaves Affect Radiant Hear

Once an eave overhang or soffit has ignited fire can spread onto the roof into the attic or onto and through the exterior wall.

Wind roof eaves affect radiant hear.

A curved roof can be used to cover the entire home or a single section such as an arched entrance. Eaves are located at the down slope edge of a sloped roof and serve as the transition between the roof and fascia wall. The roof photo 1. Since curved roofs are designed by the architect or builder it can be customized to be advantageous to the region the home is being built.

From there the entire mass of the roof roofing roof paper nails sheathing rafters warms up through conduction. Soon the roof s structural mass is so hot that it will radiate heat on its own like the sun. For example in high wind areas a roof with a lower slope would be more durable than one with a higher slope. Wind blown embers radiant heat and direct flame contact.

If you can do this it will work to reflect radiant heat. Sprinkler systems should be able to protect a home against the three basic wildfire exposures. Unprotected vents can allow embers and hot gases to enter the attic see fact sheet 8 vents. During the installation you will still leave gaps at the top and bottom of all the rafters cuts around fans or other obstacles and you still cover any gable ends that are in the attic just like you would in the traditional staple up open ridge method for installing radiant barrier foil.

Years of research have proven that air vent ridge vents combined with under eave venting are the most efficient and effective system you can install. Under the eave at the edge of the roof. Overhangs are extensions of the roof beyond the exterior wall i e the joists. One static vent style is the turbine vent which uses wind to power its enclosed fan all it takes is a light breeze to rotate the blades and suck heat out of the attic view example on the home.

Typical design and construction eaves. The roof structure of your home is like your skin. Soffits normally have vents as part of the attic ventilation system. An eave typically has a metal edge flashing and gutter that are attached to a wood fascia trim board.

Roof venting has a far lower effect on peak shingle temps than the sri and on medium and high pitch roofs greater than 2 12 pitch under cool roof terminology convection cooling on the exterior provides an order of magnitude more shingle cooling than any scheme for ventilation under the roof deck can. Radiation from the sun heats the surface of the roof.