Frequently Asked Questions

How do I know if I should replace my roof?

If your roof is more than 10 years old and is showing the following signs of weathering or damage, it is an indication that your roof needs to be repaired or replaced:

Broken or Missing Shingles

Damage can be caused by extreme wind or snow removal. It may take the form of broken, torn or missing shingles which can permit the entry of water.


Caused by warping of roof decks, buckling is a visible distortion of the horizontal lines of shingles on the roof, going up the roof slope. Shingle tabs become exposed to wind and can be torn off, again permitting the entry of water.


Curling under of the shingle tabs at the bottom edge. The bulge creates vulnerable areas for substantial damage from wind, hail or ice.


An upward curling of shingle tabs makes them highly susceptible to wind and ice damage.

What happens if a worker gets injured while working on my home?

All of our workers adhere to strict safety policies. We are fully insured, including a liability insurance policy to ensure that you, the homeowner, are protected should any accident occur. Every employee is also covered by WSIB insurance to protect our workers and yourself in such an incident. This means that you will not be liable should an accident occur on your property.

Why is underlayment important?

Underlay acts as an intermediary layer between the shingles and the roof deck. It is an extra layer of protection in the event of storm where shingles are torn or broken. It also protects your home from ice damming in the winter.

Why is ventilation important to consider when installing my roof?

Ventilation is extremely important in extending the longevity of your roof. Heat build up in the summer combined with the cold weather of winter will speed up the aging process of your shingles. Proper air circulation will greatly reduce the chances of leaking, curling, blistering, rotting of the roof deck, wet insulation and many other potential issues.

There is shingle granule in my eavestrough. Are they defective?

When shingles are newly installed, there may be some granule loss evident by the small build up in your eavestrough. This is normal and is the loose granule on the surface of the shingle which is left over from the manufacturing process. If your roof is older and are losing a lot of granule, this is a sign that the shingles are nearing the end of their life.

Why haven’t my shingles lasted as long they were expected to?

There are many reasons why shingles fail prematurely. One cause could be due to inadequate ventilation in the attic. Excessive heat build-up can cause shingles to dry out if there is sufficient air flow to expel the heat. Other reasons may be caused by a manufacturing defect or improper installation of your shingles.

What kind of warranty does LP Platinum provide?

We provide a 50 year workmanship warranty and a 50 year limited lifetime manufacturer warranty.

Do you sub-contract out your work?

No we do not. All of our employees are full time employees of LP Platinum Roofing & Exteriors Ltd. This ensures that the same quality job is provided every time.

What is ice damming and why does it occur?

Ice Dams occur when there is a blockage at the edge of the roof which prevents melting snow from draining off of the roof. Blocks of ice develop as snow on the upper part of the roof starts to melt. The water runs down under the snow and refreezes at the roof’s edge. Ice melts and forms pools of water against the ice dams and gradually works its way under the shingles, eventually leaking into your house. The main cause is heat rising into the attic and warming the roof surface. Insulation and ventilation are key in maintain a consistent attic temperature and proper conditions on the roof deck. Installation of an ice and water membrane along your eaves and in the valleys of your roof, as well as an under shingle membrane will also help to keep your roof protected.

What are questions I should ask contractors when getting quotes?

Do you have references who I may contact
Do you have full time workers or do you sub contract out your work?
What type of insurance do you carry?
Are your workers covered by WSIB insurance?

Is it worth it to upgrade to a higher quality shingle?

Yes. The shingle cost is only a part of the cost of having your roof replaced. Other costs involved with re-roofing is the removal and disposal of old shingles, accessories, and labour. To upgrade your shingle you will only be paying actual price difference in the cost of the material. You will receive a much better warranty from the manufacturer and get a longer life out of your roof.

If you still have questions, please contact us.