Ice Membrane Roofing

Seals around roofing nails resisting leakage caused by water back up ice dams or wind driven rain.

Ice membrane roofing.

Ice and water protector sometimes also referred to as ice and water shield is a waterproof roof underlayment membrane developed to protect vulnerable areas on a roof from ice and water damage. Not all high temperature roofing underlayments are the same. Slip resistant embossed surface to maximize traction and improve safety. Grace ice water shield self adhered roofing underlayment is a premier membrane composed of two waterproofing materials an aggressive rubberized asphalt adhesive backed by a layer of slip resistant coated high density cross laminated polyethylene film.

Installing membrane underlayment ice and water membrane should be installed at least six feet up the slope of the roof from the eaves 6 feet wide in all valley areas and around any heat source such as a skylight chimneystack or flange. If there s room to stick your finger under the membrane at the edge itself to me this is an open path to water damage. Ice and water membrane must be installed far enough up the slope to cover the first few feet of heated space. Few edge catches ease of membrane cutting and membrane positioning.

By code only the bottom 3 feet require a backup membrane such as ice and water shield or tar paper but it is a good idea to cover the entire roof with tar paper as well as a backup. Ice and water protectors sometimes called ice and snow shields in cold climates are made with polymer modified bitumen. An ice dam is a thick rim of ice that originates along the edges of a roof when snow melts and then refreezes. Grace ice and water shield ht is an excellent high temperature ice and water barrier that follows in the footsteps of the original ice and water shield but is specially formulated to meet the higher service temperatures that are inherent to metal and tile roofs.

Can be left exposed for up to 120 days. Install the ice barrier membrane according to the manufacturer s instructions with the drip edge installed on top of the membrane 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. Granules release paper provides multiple performance enhancements. Ice can build up forcing water back up the roof and under the shingles.