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Roofing installed by the book. Every single time.

How is your roof holding up?

There are many tell-tale signs that your roof could be nearing the end of its useful life. Look for any of the problems below to determine whether you should consider replacement before winter.

A rotting shingle A shingle covered in algae streaks A buckled shingle A curling shingle Granule loss into a rain gutter
Figure 1 From left: a rotten shingle, algae streaking, a buckled shingle, a curling shingle, granule loss into a rain gutter

Ventilation is key.

Failure to adequately ventilate your attic will leave humid air from the living area trapped in the attic. Any number of costly problems can be the result.

Mold growth in an attic Badly curled shingles A plywood roof deck, delaminated by moisture absorption
Figure 2 Left: various species of mold grown in a petri dish. Center: extreme curling of shingles after long-term absorption of moisture. Right: de-lamination of roof deck caused by excess absorption of moisture.

If needed, we’ll send a certified expert to your home to measure and inspect your roof and attic to determine how much intake and exhaust ventilation is needed.

Proper airflow requires care and planning.

To move moist, humid air out of the attic, the entire interior of the attic must have continuous airflow. Without the right mix of ventilation points the air in the center of the attic will often remain static. Usually, the result is a dangerous buildup of moisture.

attic ventilation diagram
Figure 3 Air enters at the eaves, and is drawn to the peak by the stack effect, creating continuous air flow that prevents moisture buildup and limits mold growth.

The stack effect is key.

To move air throughout the attic, it’s necessary to achieve a “stack” effect, in which airflow across the roof draws air up through soffit or edge vents. The air is pulled through the attic, and then flows of out the ridge vents or can vents. A balanced amount of intake and exhaust are required, as well as correct placement and proper installation of ventilation solutions.

Poor ventilation can cause moisture to build up—fast.

Bathing, cooking, doing laundry, and cleaning produce water vapor. Add the vapor produced by human, animal, and plant respiration, and a normal household puts up to 300 liters of water into the air each month (Pilon & Tenwolde 2007). Proper attic ventilation is critical in preventing moisture buildup.


Roof valley protection

Roof valleys are among the major trouble spots for leaks and eventual water damage, but with proper installation of the right products, you don’t have to worry.

Roof valley diagram
Figure 4 A roof valley will channel a large volume of water during heavy rains, making it a common problem spot.

Because shingles cannot lay flat across a valley, and because valleys handle more water flow than flat parts of the roof, they wear out more quickly. The only way to keep the valleys safe from eventual rot and decay is to protect them with a rust-proof metal sheet that channels water to the eaves.


We protect your roof against ice damming.

Shingles and underlayments can’t prevent leaks when water sits stagnant. During winter, water becomes trapped at the eaves, often causing considerable damage. In Michigan, ice damming damage is among the most common causes of major roofing problems. Even a single season of heavy ice buildup can ruin the wood at the eaves.

Ice dam diagram
Figure 5 Water pools behind a mound of ice.

Ice and water shield is the best defense.

A water-tight layer of rubber membrane, that can keep standing water at bay is the only way to mitigate the danger posed by ice buildup.

Get a breathable underlayment.

Climate is an important consideration when choosing an underlayment. If snow and ice will cover vents, the wise move is a breathable underlayment. Common synthetic underlayments are excellent at preventing leaks and are intended to provided a second line of defense in the event that shingles are torn free during a hurricane. However, these materials also trap moisture in the attic. If the primary ventilation isn’t working, the result can be wood delamination, mold, and wet insulation.

We use Gorilla Guard® engineered felt underlayment, which is uniquley cost-effective for climates like ours. To get the benefits of typical synthetics, plus the breathability of feltpaper, a breathable synthetic underlayment (GAF® Deck Armor) is also available.


We use high-tech shingles

We offer Atlas® shingles with Scotchgard® protection, so your roof will both look and perform like new even after years of punishing ice, snow, and hail. And because Atlas® offers a wide variety of shingle colors and styles, we can help you make a selection that’s just right for your home.



SBS rubber and granule retention

Shingles fail when granule loss exposes the asphalt to the sun. When the asphalt cracks, the matt is unprotected and rapidly deteriorates. Atlas® Stormmaster incorporates SBS rubber to reduce granule loss by 90%, and usually reduces insurance costs because it is hail resistant.

Industry-best algae resistance

Atlas® shingles include far more algae-resistant copper-coated granules than competing algae-resistant shingles. Preventing algae and lichen growth (see Figure 6) helps to further prevent catastrophic granule loss.

Comparison of algae growth.
Figure 6 Algae growth, shown on a portion of roof with and without Scotchgard® protection.

Chimney Saddles & Flashing

Saddles prevent ice buildup.

Without a saddle, many chimneys retain snow which turns to ice over time. When heat from inside the home melts the ice from below, water may sit stagnant on the roof, causing leaks and rot. If needed, we’ll build a chimney saddle to both provide a runoff path for melting ice and limit snow buildup.

Chimney saddle
Figure 7 A chimney saddle provides a downward path so that water, ice, snow, and other debris are drawn past the chimney to the eaves.

Sun-exposed sealants fail.

Even the toughest sealants will last only a short time when exposed to direct sunlight year-round, in combination with seasonal temperature extremes. To protect the sealant from sun exposure, we cut a groove into the mortar and tuck the edge of the flashing inside. This way, the flashing sealant lasts as long as the roof.


We recycle project waste.

When we haul away your old shingles, they aren’t going to a landfill. They’ll be turned back into raw asphalt, to be used to resurface roads.


We provide meaningful warranty coverage.

Typical shingle warranties provide little peace of mind due to fine print exclusions and aggressively prorated coverage. WeatherGard® and Atlas® provide real coverage.


[1] Some product selections are excluded. A WeatherGard-recommended underlayment and shingle solution are required. Depending upon underlayment and shingle selection, workmanship may be guaranteed from 5 to 15 years.

Pilon & Tenwolde. (2007). "The Effect of Indoor Humidity on Water Vapor Release in Homes". Proceedings of Thermal Performance of the Exterior Envelopes of Whole Buildings X. 2007(January).