Installing Ice And Water Barrier On Roof

The eaves flashing shall be installed from the end of the deck to a minimum of 24 inches up the slope.

Installing ice and water barrier on roof.

Ice water shield acts as a vapor suppressor so it not only keeps the water out but also keeps the moisture in. This code implies that ice and water shield eaves flashing is required for installation on all heated steep slope structures exception is unheated structures in colder climates. Remember that in high. The problem turned out to be you ve likely guessed it the ice and water installed by his roof contractor.

Ice and water protector needs to be installed directly onto the roof deck after you have placed the drip edge at the eave. The drip edge will be installed over the ice and water protector and other underlayments at roof rake edges you should install ice and water protector before other underlayments including roof felt. The contractor had used the was the regular kind and it was literally melting in some of the areas where it was touching the metal diamonds that were directly exposed to the sun for extended periods in the day. On most roofs this isn t far enough to comply with the international residential code.

Most roofers install one 3 ft wide roll of ice barrier along the eave edge to prevent leaks due to ice dams. Eaves flashing is required to prevent ice formation at the eaves and gutter to back up beneath the roof covering. Section r905 1 2 ice barriers in the 2018 irc says the ice barrier shall extend from the lowest edges of all roof surfaces to a point not less than 24 inches inside the exterior wall line of the building. Then install regular roofing underlayment tar paper over the top of the drip edge and over the ice barrier and continuing all the way up the roof.