Installing iko architectural shingles

Align the bottom edge of the shingles with the tops of the saw teeth of the shingles in the underlying course. For maximum wind protection, cement shingles at rake edges. For IKO pre-cut hip and ridge products, bend each piece over the hip or ridge, and nail per instructions on the wrapper. The exposed nail heads of the final shingle should be covered with roofing cement.

Prior to application in cold weather, store hip and ridge shingles in a heated area to allow for easier bending. Shingles should seal to the underlying course when the factory applied asphalt sealant is sufficiently warmed by the heat of direct sunlight.

When application conditions might limit the effectiveness of the sealing strip, such as in cool weather or in areas subject to high winds or blowing dust, shingle adherence should be ensured through manual sealing as described above. Starter strip shingles must be used at all eaves. Manual sealing is not required in the state of Florida. Lors de la pose des bardeaux, ceux-ci devront chevaucher la garniture de noue.

Scellez le bord de chaque bardeau donnant sur la noue avec une bande de 3 po de ciment asphaltique B. Corte la primera teja inicial por la mitad. Alinee el borde inferior de las tejas con la parte superior de los dientes para serrar de las tejas en la hilera inferior. Before installing any roofing materials, make sure that the roof deck is smooth, properly fastened to the roof trusses, dry and free of any gaps or holes.

Having a clean, flat deck surface will help ensure that the newly shingled roof will likewise appear smooth and flat when finished. Work from the bottom up. The first material installed at the eave is the drip edge. Drip edge is installed under the ice and water at the eaves and on top of the ice and water and underlayment on the rakes. Ice dam protection at the eaves. Well, your roof and the home under it need the same kind of protection that an ice and water protector is engineered to provide.

This thin, self-adhering membrane is the next component and it gets installed over the drip edge. Ice dam formation is best prevented by having a proper attic vapor barrier, adequate attic insulation and thorough ventilation ; however, an ice protection membrane is a wise roofing system component and is likely required by your local building code in cold climates.

At this time, any valleys on the roof should also be flashed with an ice and water membrane. Why an ice and water protector? Because these membranes work on the principle that their rubberized asphalt coating seals around the shanks of the overlying shingle fasteners, adding an extra degree of water-shedding protection. Underlayment for overall secondary roof protection. Both offer you peace-of-mind protection beneath the shingles.

While the asphalt shingles will be the primary water-shedding roof layer, there are many benefits to installing a roof underlayment. Remember that drip edge we installed at the bottom of the roof? Although this seems to contradict the overlapping principle, installing the drip edge over the underlayment at the rakes creates a clean roof edge and provides the underlayment attachment with increased resistance against wind uplift.

Also, any wind-driven rain blowing on the rake edge would cross the top flange of the drip edge and go on top of the underlayment instead of beneath the underlayment where it could potentially cause a problem.

Covering the joints and valleys. If a roof is going to leak, it will most likely occur wherever the shingle layer is penetrated, interrupted or meets a wall. These are the special areas that require flashing — an added layer of water-shedding material to help keep the water running downslope. Valleys can either be open or closed — open valleys are not covered with shingles, closed valleys are. Built-In Algae Resistance We embed special algae-resistant granules into our shingles to help inhibit the growth of blue-green algae that can cause unattractive black stains, streaks and discoloration.

We Never Take Quality for Granted. And Neither Should You. Roofing shingles alone are usually not enough to protect your home. Deck Protection. Synthetic Underlayment. Roof Starters. Cap Shingles. All Accessories. Coverage Per Package. Quantity Per Pallet. Shingles Per Square. Limited Wind Warranty Upgrade.

Fire Resistance Rating. PDF Share. Brochure Canada. Brochure U. By submitting this form, you agree to our privacy policy. Please complete all fields. When deciding how to shingle a roof valley, you will need to consider your materials, the climate and the desired look of the roof. IKO recommends that you install architectural shingles with the open valley method for the best roof performance.

To achieve a woven valley installation, a roofing professional lays shingles in the valley and weaves them together. Some homeowners prefer the consistent look that a woven valley provides. But, if the shingles are not laid in the valley properly, a woven valley may not lay flat, creating bumps and detracting from the overall look of the roof.

The woven valley shingle installation method does not call for roofing cement, relying instead on the weave pattern to protect from water infiltration. So, if you are installing a woven valley, you must push the shingles snugly into the valley, while not nailing within six inches of the valley center.

If this is not done properly, hollow space may develop under the shingles. The empty space makes the shingles vulnerable to penetration, either by footsteps, hail or other debris. A woven valley shingle installation has other drawbacks, including that they are slow to install, especially in cold weather , and more difficult to repair than the other types.

In order to shingle this kind of roof valley, a roofing professional has to install both roof faces at the same time, which is quite slow. If repairs are needed, the contractor has to remove and then reweave multiple shingles to replace a single one.

While a woven valley may save on initial installation costs, because they require less materials, they may cost more in the long term. Woven valleys are suitable for three-tab shingles as their single-layer construction allows them to be woven together and overlapped more easily.

When considering how to shingle a valley with architectural shingles, you must take into account their thickness and reduced flexibility. Laminated shingles are more liable to create bumps in woven valleys. Often, they are too thick to be woven at all. Thus, IKO does not recommend installing a woven valley with laminated shingles.

Closed-cut valleys, also called closed valleys, are installed quickly and have a cleaner, sharper look than woven valleys. From the ground, it looks as though the shingles meet in a clean line in the center of the valley.

One layer of shingles actually crosses the valley beneath the other. It is essential to only use whole not cut shingles during this step. As you install roof shingles on the second roof plane, you allow them to lap over the valley on top of the first shingles. The shingles on the second layer are then cut, ideally creating a clean line down the center of the valley. A chalk line can be used to guide you as you cut the shingles.

Unlike a woven valley, a closed valley will not have hollows.