FREQUENTLY ASKED QUESTIONS:
What type of foundation do we need?
A variety of foundation choices are available with engineer stamped plans:
Concrete foundations up to 10' high,
Grade Beam or continuous footing foundations,
Large PreCast Concrete Blocks, Wood Posts and
Concrete Piers.
What sizes are available?
We offer 30' and 35' in the single arch model and 33', 40', 50', 60', 70', 80', 90', 100', 125' and 140' wide in the double arch truss models.
What are temperatures like inside a MegaDome?
The white and tan colored covers provide an environment that is warmer in the winter and cooler in the summer.
Is the fabric easily repaired?
Yes, we can supply a patch kit should you accidentally tear or damage the fabric.
Can we relocated the building
These buildings provide the flexibility to allow you to take down your building and move it to a new location.
Is it possible to add on to the building?
It is no problem to add to the length of your building at any time.
How long has the manufacturer (Harnois Industries) been in business?
Harnois Industries have been serving customers since 1956 both nationally and internationally.
How do the MegaDome buildings hold up against our weather conditions?
Each MegaDome Structure, as well as the foundation, is designed by the Harnois' team of engineers to meet the Canadian National Building Code snow and wind loads for the area where the structure will be installed.
What type of welding technique is carried out on the MegaDome building?
Harnois performs bronze welding, accredited by the Canadian Welding Bureau, offering a better protection against corrosion than the usually painted welds. At the time Bronze Welding is performed, the galvanized truss is not affected by the welding and therefore your MegaDome Building will have a much longer life rust-free!
How should a MegaDome by maintained?
First, your MegaDome and its foundation must be installed as intended and as specifically outlined in the engineer approved plans provided with your building.
After your MegaDome is installed, there is very little maintenance required. The key to long life of the cover is that it is maintained as a skin or membrane over the steel frame. The manufacturer specifies the tension that must be maintained on the tarp. This is easily done in less than one hour by checking the locking ratchet system used to hold the cover in place and a torque wrench (included). The owner needs to occasionally inspect the MegaDome to identify and re-torque if necessary any lack of tension in key building components and to identify any damage. Any cuts or tears must be promptly repaired to prevent further damage being caused.
Small tears in the tarp can be quickly repaired with special purpose tape designed specifically for this purpose. If needed, replacement covers can quickly be installed.
In high wind conditions, large doors or openings should be kept closed to prevent a "parachuting" effect. Snow will not usually build up on your MegaDome given its shape but the owner should verify this has occurred or otherwise have excessive snow removed from the roof and sides.
No modifications should be made to your MegaDome unless specifically approved in advance by the manufacturer. If you follow the above practices, you can expect many years of use.
All warranties and obligations are the exclusive responsibility of the manufacturer (Harnois Industries Inc.) and include:
Warranty* - Replacement of the cover up to 100% for the first 2 years prorated depending on the geographic area and the use of the cover for up to 15 years for PowerShield® grey, green and white. 10 years for all other colours and fire retardant covers.
* LIMITED WARRANTY SPECIFICATIONS. Harnois Industries (the Manufacturer) gives a limited warranty to the original customer/purchaser using “PowerShield” polyfabrics and polyester – PVC fabrics, here called Membranes. This warranty covers primarily membrane physical degradation caused by ultra-violet rays from the sun. Harnois warrants membrane to fill requirements as adequately as at installation time, always with limitations, conditions and exclusions as mentioned. MegaDomes® manufactured by Harnois are designed to fill requirements related to wind loads and snow loads specified for city or area where MegaDome® will be installed. This warranty does not cover discoloration, coating alteration, diminution of flexibility and star lighting who are effects caused by environment. Harnois also warrants membrane to be free from manufacturing defects (gauge, yield, UV inhibitor content, coating thickness, coating adhesion, color uniformity, etc.) and from assembling defects (sewing, welding); nevertheless, membrane must have been installed on a structure manufactured by Harnois. If limited warranty has to be applied, Harnois is the only party who will judge ineffectualness of membrane and the only party who will decide whether to repair or to replace the membrane to meet expected efficiency, in all cases Harnois shall have adequate period of time for the application of warranty. If Harnois decides to apply limited warranty, conditions and calculations will vary depending on related product and zone where is installed membrane under warranty. Each membrane carry specifically a full (100%) and a pro-rated warranty; according to the following guide lines: A) Warranty schedule varies with zones where is installed the cover; world is divided in three specified zones (see details following), B) Warranty schedule varies with type of cover and localization on building (see details following). Numbers signification – as 2-15: first number (2 or else) means number of years with full (100%) warranty –Second number (15 or else) means number of years where warranty applies on a pro-rated basis, according to the total of years on building – example: if defect occurs during the year following six full years of installation on building and if said defect appear on a cover with a 2-15 schedule, customer will have to pay for replacement 6/15 of the price of a new cover at time of replacement; 6/15 equals 40%. In all cases, installation cost and transport cost for replacement of membrane are at customer’s charge except during period covered by full warranty. If membrane is repaired under warranty as decided by Harnois, costs for repairs are at Harnois’ charge and limited warranty conditions for repaired membrane continue as specified. Each membrane supplied with a Harnois structure as top cover includes a serial number always necessary for warranty execution (2006). Limited warranty applies when cover is installed by original purchaser on a Harnois structure according to Harnois specifications; for warranty purpose, installation date is the reference. In all cases, warranty applies only if adequate tension, as specified by Harnois with relative documents, is maintained on membrane and if camera showing adequate installation is returned to Harnois (2006).
Specified zones for warranty:
Zone 1 (radiation 60 – 119) Canada; specified USA States: CT, DE, IA, ID, IL, IN, MA, MD, ME, MI, MN, MT, ND, NE, NH, NJ, NY, OH, OR, PA, RI, SD, VT, WA, WI, WY, European countries north to 50° parallel – Japan
Zone 2 (radiation 120 – 159) USA States situated between Mexico border and zone 1
European Countries between 40th and 50th parallel – Philippines – China
Zone 3 (radiation 160 – 200) Mexico – South America, Australia, Africa, India, European countries south of 40th parallel
Polyester – PVC 18 ounces membranes – when installed on curved roof and sides
Zone 1: 5 – 15. First five years – no charge to customer for membrane.
After five years – customer cost: years of use pro-rated to fifteen.
Zone 2: 2 – 12. First two years – no charge to customer for membrane.
After two years – customer cost: years of use pro-rated to 12.
Zone 3: 2 – 10. First two years – no charge to customer for membrane.
After two years – customer cost: years of use pro-rated to 10.
PowerShield membranes green and silver with black scrim and white with translucent scrim when installed on curved roof and sides
Zone 1: 2 – 15. First two years – no charge to customer for membrane.
After two years – customer cost: years of use pro-rated to 15.
Zone 2: 2 – 12. First two years – no charge to customer for membrane.
After two years – customer cost: years of use pro-rated to 12.
Zone 3: 2 – 10. First two years – no charge to customer for membrane.
After two years – customer cost: years of use pro-rated to 10.
PowerShield membranes with translucent scrim and colored coatings different than white; "PowerShield" membranes with fire retardant content when installed on curved roof and sides
Zone 1: 2 – 10. First two years: no charge to customer for membrane.
After two years: customer cost: years of use pro-rated to 10.
Zone 2: 2 – 8. First two years: no charge to customer for membrane.
After two years: customer cost: years of use pro-rated to 8.
Zone 3: 2 – 6. First two years: no charge to customer for membrane.
After two years: customer cost: years of use pro-rated to 6.
Membranes installed on gable ends and straight sides
All zones: Polyester – PVC membranes: 3 – 8 warranty schedule.
PowerShield membranes: 1 – 5 warranty schedule.
Membranes installed for fold-up doors and roll up systems
All zones: Polyester – PVC membranes: 3 – 8 warranty schedule.
PowerShield membranes: 1 – 3 warranty schedule.
Tension straps and cables for membrane
Warranty schedule identical to specific membrane warranty with which it is installed.
Roof membrane assembled with different products linked to different warranty schedules:
In such a case, the shorter warranty linked to one of the components of the membrane applies on the whole membrane.
Harnois and MegaDome Construction (a division of StratCan Industries Inc., herein after identified as MegaDome Construction) warranty limits:
The warranty excludes any and all other warranties, legal or conventional, whether verbal or written. It is the Buyer's sole responsibility to determine where a Megadome is located and how it is installed and maintained to minimize possible damage from wind and snow, to meet any municipal regulations or by-laws and to ensure it does not cause damage to your property or others.
Harnois and MegaDome Construction liability limitation:
Harnois and MegaDome Construction, a division of StratCan Industries Inc. shall not be liable in contract or in tort (including negligence) for loss of profits or revenue, loss of use of equipment or facilities, loss of capital, or for any special, indirect, incidental or consequential damages of any nature resulting from or in any manner relating to the building, its design, installation or use; it is understood and agreed that the sole and exclusive remedy with respect to any defective material shall be the repair, correction or replacement thereof pursuant to the foregoing provisions.
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Harnois and MegaDome Construction, a division of StratCan Industries Inc. do not assume liability for damages that may occur to the building at installation time unless they are contracted to erect the structure by the owner. Whatever the case, Harnois and MegaDome Construction, a division of StratCan Industries Inc.. will never be liable for damages related to the installation and use of Harnois buildings and in relation with following: time lost, profit lost and other inconveniences even when either party was aware of pending risks.
Warranty exclusions
Warranty does not apply when defects or damages occur due to following: Inadequate installation or installation not done according to instructions. Inadequate maintenance. Modifications applied by customer without written authorization from manufacturer. Misuse, abuse, negligence by equipment, machinery or persons. Accidents (mechanical or climatic). Unauthorized repairs or modifications. Integration of products that are not compatible with the building. Exposure to corrosive elements or harmful chemicals or fumes. Exposure to conditions in excess of or not meeting specified wind and snow load capacities of each building model. Foundation designs other than those authorized by Harnois. Foundation deficiency. Acts of God.