If left untreated ice dams will grow larger as winter wears on trapping more and more water behind them.
Roof membrane ice dam seal.
Run special ice dam prevention products adhesive ice and water barrier from 3 to 6 ft.
That s when you have to call on secondary strategies and ice dam prevention products to prevent ice dam damage.
Superior adhesion to the deck the self adhesive membrane bonds firmly to the roof deck without need for heat or special adhesives.
How ice dams damage your home.
Grace ice and water shield fully adhered smooth surface roofing underlayment provides best in class roof leak protection against wind driven rain and ice dams.
Few edge catches ease of membrane cutting and membrane positioning slip resistant embossed surface to maximize traction and improve safety.
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.
Up the roof from the edge the next time you reroof fig.
Seals around fasteners the rubberized asphalt layer in grace ice water shield membrane seals around fasteners resisting leakage caused by water back up behind ice dams or from winddriven rain.
Jiffy seal ice water guard is a tough pliable sheet membrane designed to prevent moisture penetration and interior damage from water back up caused by roof ice dam buildup during the winter season or by wind driven rain can be installed in new construction or during a re roofing under shingles tile slate metal and shakes and is compatible with accepted roofing materials.
Available in 9 in.
Ice and water barrier is a type of self sealing underlayment that adheres to the roof decking and waterproofs it.
Install the ice barrier membrane according to the manufacturer s instructions with the drip edge installed on top of the membrane.
When installing a new roof or replacing the old one consider adding a water repellent membrane such as ice and water shield underneath the shingles.
And some sections of the roof may be impossible to keep cold.
Water repellent membrane ice and water shield this product will not prevent ice dams from happening but it will help minimize the damage by shielding the roof deck.
Ice dams are common in the valleys of a roof and over soffits.
Jiffy seal ice water guard.
The adhesive back surface of the membrane will bond to the roof deck which is a superior underlayment for areas where ice dams or severe storms are common.
Based on the grace ice and water shield technology grace roof detail membrane is a flexible product that conforms tightly to common roof details such as skylights chimneys and dormer walls.
The ice dam prevents water from exiting the roof creating pools of melted snow that seep back underneath the shingles.
W it is the optimal choice for valleys and transition areas such as ridges rake edges and drip edges.