Valleys & Ridges | Dayus Roofing
2. Valleys - It now very common to line the valleys (where two different slopes come together) with ice and water shield. Shingles in a valley on. In our OPINION -DF, while roll roofing (or peel and stick ice and water shield Where two roof valleys meet, for example above a gable dormer, a soldered joint . A roof valley is formed where two roof slopes meet. Metal sheds ice and water faster than shingles, reducing the risk of ice dams and blockages of debris. Also.
In the age where 3-tab shingles were the standard in roofing, it was common practice to take the same shingle used to cover the roofing slopes, cut it into 3 pieces and use it to protect your hips and ridges.
Today, where laminate products are the overwhelming shingle of choice, specific shingles are manufactured for the hips and ridges.
It is still OK to use a 3 tab shingle if you can find a colour to match your shingle of choice, but it is recommended by manufacturers to use specialty cap shingles for laminate and designer products to compliment their enhanced warranties.
Hip and Ridge cap shingles are traditionally a single layer shingle, but manufacturers are now producing double layered shingles, and even shingles that are folded to create superior strength and design. Valley Valleys are created where two roof slopes meet.
Because of the volume of water and lower slope along valley lines, valleys are particularly vulnerable to leakage. There are two basic types of valleys: Open Valleys Open valleys are so defined because the valley line remains uncovered by the primary roofing material.
Open valleys are protected by a combination of ice and water shield and metal. The eaves edge is the lower area on the roof where the water drains towards, typically where the eavestrough are attached.
How to Repair a Roof Leak in a Valley – DIY Guide
There are specific regulations dictating the use of eaves edge underlayments. Your roof type, overhang width and roof slope will dictate the option best suited for your roof. Here is a list of the typical products you may see on a contract proposal.GAF Pro Series Leak Barrier Valley Installation
No eaves underlayment at all. This peel and stick rubberized membrane is used in problem areas on a roof such as in valleys, around skylights and at eaves edges.
Ice shield is an excellent product but it does not guarantee against leaks, especially leaks due to ice dams. Shingle types and brands: As you can expect not all shingles are of the same quality and not all warranties are the same. It is important to know that the shingle warranties are covered by the manufacturer and not by the installation company.
Options Install 15 lb felt: Felt is an optional but strongly recommended secondary barrier of protection for your roof.
It is also used to level off an uneven board deck and may be required in certain applications and with certain types of shingles.
It is time proven product that has performed well for many years.
Problem Areas | Dayus Roofing
This would replace the 15 lb felt underlayment option. If the ice and water shield is missing, then you will have to remove the shingles on both sides along the valley, put ice and water shield in place and re-shingle the roof. You can check to see if the ice and water shield is installed by going into your attic and checking for it through the spaces in the boards, if there are any spaces where the roof valley is located You will not be able to see much if you have plywood for a roof deck.
You can also put up a ladder towards the valley on your roof, lift up a few shingles and check to see if the ice and water is in place. If it is missing, then you will have to make sure it gets put in place. If you have multiple valleys on your home, you may have to consider a complete re-roofing jobespecially if your roof is rather old, and will need to be replaced soon.
Aging shingles in a roof valley areas can create fissures and cracks that permit moisture to pass through. Intact shingles create a water barrier in a new or a well-maintained older roof.
Exposure to sun, wind, rain and snow gradually cause shingles to dry out, shrink and break apart. Eventually pieces of roofing shingles may actually blow or be washed off the roof.