How much does it cost to reshingle a garage roof in Moncton NB?

Reshingling a garage roof in the Moncton area typically costs $2,500 to $6,500 depending on garage size, shingle quality, and whether the existing shingles need to be stripped. A standard single-car garage (12x20 to 14x24) runs $2,500 to $3,800, while a two-car garage (24x24 to 24x30) costs $3,800 to $6,500 for a complete reshingle with architectural asphalt shingles.

The biggest factor affecting cost is whether your roofer can install new shingles over the existing layer or needs to strip the old shingles down to bare sheathing first. The NB Building Code allows a maximum of two layers of asphalt shingles on a roof. If your garage already has two layers, or if the existing shingles are severely curled, buckled, or deteriorated, a full tear-off is required. Stripping adds $1.00 to $2.50 per square foot to the project cost, which works out to roughly $600 to $1,500 extra on a typical two-car garage roof. In many cases, experienced Moncton roofers recommend stripping regardless because it allows inspection of the sheathing, replacement of any rotted plywood, and proper installation of new underlayment and ice and water shield.

For the Moncton and Greater Moncton area (including Dieppe and Riverview), typical reshingle costs break down as follows. Asphalt architectural shingles run $4 to $7 per square foot installed, which is the standard choice for most residential garages. These shingles come with 25 to 30-year warranties and are available from major brands like IKO, BP, and CertainTeed at Moncton building supply stores including Kent, Home Hardware, and specialty roofing suppliers. Premium designer shingles with heavier weight and longer warranties (40 to 50 years) cost $6 to $9 per square foot installed but are generally not necessary for a garage roof unless you want the garage to match a premium-shingled house.

Ice and water shield membrane is a critical component of any garage reshingle in Moncton and is required by code at a minimum of 36 inches from the eave edge. Given Moncton's susceptibility to ice dams — temperatures hovering around freezing are common in the Petitcodiac River valley during late fall and early spring — most experienced local roofers extend the ice and water shield to 48 or 72 inches. This membrane adds roughly $1.50 to $3.00 per linear foot of eave to the project but provides essential protection against ice dam water infiltration.

A complete reshingle quote for a Moncton garage should include removal and disposal of old shingles (if stripping), inspection and repair of sheathing, installation of synthetic underlayment, ice and water shield at eaves and valleys, new drip edge flashing, architectural shingles, ridge cap shingles, and proper ventilation components (ridge vent and soffit vents if not already present). Flashing around any pipes, vents, or roof-to-wall connections (critical for attached garages) should be replaced with new flashing rather than reused.

The best time to reshingle a garage in Moncton is May through October when temperatures are warm enough for shingle adhesive strips to seal properly. Shingles installed in cold weather may not seal until the following spring, leaving them vulnerable to wind lift during winter storms. Most Moncton roofing contractors are busiest in July and August, so booking in May, June, September, or October may get you a slightly better price and faster scheduling.

Always get three or more quotes from local roofing contractors for your garage reshingle. Prices in the Moncton area can vary 25 to 40 percent between contractors for identical scope, and written quotes allow you to compare material specifications, warranty terms, and included work items. A garage reshingle is a project that should be handled by a professional — working at height with proper safety equipment, correct installation technique, and knowledge of NB's ice and water shield and ventilation requirements all affect the roof's long-term performance. Browse garage and roofing contractors in your area through the New Brunswick Construction Network directory at newbrunswickconstructionnetwork.com.