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FAQs

Why Are There Melted Spots On My Roof?

It sounds overly simplistic, but the way that snow melts on your roof is a sign of how your attic insulation is performing. Roof snow that melts and disappears quickly is a sure sign that the attic is poorly insulated. At the same time, roof snow that stays put is a sign that the attic is properly insulated. Either way, melted spots on the roof are a signal that attic insulation needs attention.

Roof snow melts because heat is escaping from inside the house. And since heat rises, it will eventually reach the uppermost part of the house, which is the attic. Heat loss could be a result of recessed lighting fixtures that aren’t sealed, gaps in poorly installed insulation, or simply an attic that isn’t adequately sealed. Whatever the case, it’s important to stop heat loss and energy waste.

In every home, heat loss (and air leakage) will affect the indoor temperature, the air quality, and seasonal comfort. Worst of all, energy efficiency is compromised, and in wintertime, indoor heat is escaping through the attic and roof. It means that the furnace has to work harder, and heating costs just grow and grow. Melted spots of snow on the roof are an indication that a fix is needed.

At Great Northern Insulation, resolving heat loss (and air leakage) is about choosing an insulation product and installation technique that will seal a space airtight. This is especially true in cavities like the attic and roof where proper sealing makes a big impact. In winter, heated indoor air will not escape, and in summer, warm outdoor air will not intrude. The result: energy efficiency.

For the professional team at Great Northern Insulation, air sealing the attic is best achieved with an application of Spray Polyurethane Foam. Expertly installed, SPF creates an effective airtight space, which blocks air leakage, and therefore prevents heat loss. SPF is a proven application that will also stop moisture from collecting, and will insulate with exceptional R-Value.   

Most Popular Questions

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Western Ontario

935 Keyes Drive
Woodstock, Ontario
Canada N4V 1C3

Phone: 1-800-265-1914

Fax: (519) 539-7946
TOLL FREE: 1-800-265-1914

Southwestern Ontario

7035 Industrial Drive
Comber, Ontario
Canada N0P 1J0

TOLL FREE: 1-800-265-1914

Muskoka, Haliburton, Northern Ontario

1027 Jones Road
Gravenhurst, Ontario
Canada P1P 1R1

TOLL FREE: 1-800-265-1914

Central Ontario

29 Ferndale Industrial Drive
Barrie, Ontario
Canada L4N 9V5

TOLL FREE: 1-800-265-1914

Eastern Ontario

103 North Port Road
Port Perry, Ontario
Canada L9L 1B2

TOLL FREE: 1-800-265-1914

GTA & South Central Ontario

450 Industrial Dr,
Toronto (Milton), Ontario
Canada L9T 5A6

TOLL FREE: 1-800-265-1914

BBB

Great Northern Insulation - Better Business Bureau Profile.

Lowes

GNI is the Authorized & Trusted Insulation and Air Sealing Installer for Lowe’s

Enenrgy Savers

Energy Saving

Energy saving and energy efficiency is easier than one might think. Great Northern Insulation helps to identify performance issues, while taking advantage of improvement opportunities.

100% Canadian

100% Canadian

Great Northern Insulation is recognized as Canada's largest full-service insulation contractor. GNI is 100% Canadian owned, proudly serving Ontario customers since 1980.

Foam Masters

Do it right the first time
- with foam mastersTM

WALLTITE® ECO™ is a high-performance system, professionally installed by certified and approved specialists. Its C.C.M.C. approved (Canadian Construction Materials Centre) - with product quality guaranteed - and with installation by highly trained experts with the technical know-how to do the job right, the first time.

Homestars

Best of 2017

From reputation to responsiveness, HomeStars consistently ranks Great Northern Insulation at better than 95% for customer satisfaction. Thanks to everyone for the great ratings! 

GreenGuard

The GREENGUARD®
Gold Certification promise

GREENGUARD® Gold Certification ensures the strictest criteria for low-level chemical emissions. Certified products are safe for individuals with sensitivities (children/elderly) and safe for use in school environments and health-care facilities. The product certification is widely recognized by the LEED Rating System (Leadership in Energy/Environmental Design).

EcoLogo

ECOLOGOTM:
Multi-attribute product certification

ECOLOGOTM is an accredited sign of environmental performance – holistic – green – sustainable - and compliant with strict, third party standards. Life cycle criteria for product certification may include manufacturing and operations; health and environment; product materials and performance; and product innovation, development, and management.

3M

3MTM products.
Quality + Performance = Savings

3MTM energy-saving products are designed to keep warm air in, and cold air out, while keeping energy bills down. Products optimize energy efficiency in buildings and homes; improve indoor environment for occupants; and effect the reduction of seasonal energy costs. 3M products are authorized for LEED credits (Leadership in Energy/Environmental Design).

Baeumler

Baeumler ApprovedTM
Professional, Certified and Insured

Baeumler ApprovedTM gives you peace of mind when connecting with contractors, trades and home service providers. All Baeumler Approved members have demonstrated high quality work for customers and other trade professionals. Members must also have Workers Compensation, liability insurance of at least $1,000,000 and prove professional certification.

Holmes and Holmes

Holmes and Holmes

 

Mike Holmes and his son Mike Jr. (MJ) convert MJ’s bachelor bungalow into a two-storey home for MJ and his girlfriend Lisa. Choosing the newest materials and build techniques, the father and son team follow Mike’s famous motto – “Make it right.” The show can be watched on HGTV and DIY Network.

Enbridge

Enbridge Incentives

The Energy Conservation Program provides incentives of up to $1,600 to customers who achieve energy efficiency and fuel savings – and Great Northern Insulation can pave the way.

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