Lining Roof Valleys With Plastic To Shed Snow

An open metal roof valley.

Lining roof valleys with plastic to shed snow.

In some cases roof snow melt systems or heat tape can be used to combat ice accumulation on eaves and in valleys. When deciding how to shingle a roof valley you will need to consider your materials the climate and the desired look of the roof. The above photos show a closed woven roof valley vs. The key factors are usually snow loading requirements adequate slope and the use of snow guards when needed.

Shed dormers should be considered if the design and style of the home allow. The three methods to shingle a roof valley. Our extensive collection of snow load rated sheds are specially reinforced to protect against roof collapse brought on from snow or ice accumulation. A roof valley is a channel created where a roof changes direction or angles.

This allows the snow to stay on while venting the roof system. Usually a v or w shaped metal piece is placed in the valley to channel water off your roof. Additional roof bracing helps to distribute. This recommendation includes iko s premium shingles.

If these issues are addressed during the design stage and the roofing contractor does his job these systems will almost always perform as intended. Shed dormers are easier to waterproof and shed snow better than gable dormers. Metal roofing systems have a good track record of performance in harsh winter environments as long as they are properly designed. Iko recommends that you install architectural shingles with the open valley method for the best roof performance.

They then have the option of putting dormers on the roof without damage to the valleys penetrations lower roofs and property below due to sliding snow and ice. Understanding different types of roofing valleys.