The professional application of high-pressure spray polyurethane foam includes pre and post application procedures including careful preparation of the site as well as the application of ignition and thermal barriers as required in the Canadian National Building Code. The use of 2lb. Closed Cell MD SPF is covered by two CAN/ULC Standards. These standards are CAN/ULC S705.1 for Material Conformity and CAN/ULC S705.2 for the Installation Standard. Please check with your local building code official for the current codes in your area.
Safety Precautions
Everyone must vacate premises during application
All people, house pets, other trades without personal protective equipment must vacate the work zone during application and cannot re-enter until 24 hours after completion of spraying.
Only trained employees of the insulation contractor are permitted in the work zone. They must wear proper personal protective equipment while installing the product.
Recommended time to occupancy
The CAN/ULC Standards require that all persons and house pets must not re-enter until 24 hours after completion of spraying. The insulation contractor shall advise the consumer of the time the installation is complete so the consumer can estimate the time s/he can re-enter the premises.
Ensure the application area is ready for work
Contractor must ensure the application area is ready for work, accessible, and free of debris and storage items, a qualified person will shut off all gas supplies and combustion appliances. Upon completion of the job, contractor shall ensure that a qualified person restore all gas and electric shut-offs to normal.
The insulation contractor shall take the necessary precautions in preparing the site including, but not limited to:
Establishing a restricted work zone that is sealed off from the rest of the premises;
Disconnecting attic fans and all electrical appliances within range of the application;
Sealing intakes and vents in active work areas with plastic sheeting and tape before, during and for 24 hours following completion of the work;
Notifying the consumer that persons without proper personal protective equipment vacate the premises during the application;
Giving notice to the consumer that occupants must not re-enter until at least 24 hours following completion of the work;
Providing proper engineering controls such as ventilation during the application of the product; Providing mechanical ventilation independent of the HVAC system to ventilate the work zone following the application;
Ignition and thermal barriers
The use of ignition and thermal barriers may be required by code authorities in your jurisdiction. These requirements may be dependent on how attic areas, or crawl spaces are utilized and other factors.
Should ignition and thermal barriers be required, the insulation contractor shall subscribe to the code requirements for ignition and thermal barriers at the time of installation. Or if installed by others will ensure their requirements are stated on the invoice.
CAN/ULC S774 Volatile Organic Compound Emissions Testing
The Lawrence Berkeley Laboratories in California and the University of Saskatchewan in Canada have repeatedly confirmed that the levels of any Volatile Organic Compounds emitted during the spray process are well below generally accepted emission levels within the 24-hour period after spraying.
These laboratories also confirmed that after 30 days, VOC emissions become so low that they are nearly undetectable with even sophisticated and sensitive laboratory equipment.
On-Site Testing
Installers must insure they comply with standards set out in CAN-ULC-S705.2, including but not limited to performing on-site quality testing, submitting daily work records and providing job site labels.
CAN/ULC Standards
Sprayed Polyurethane Foam that is applied in code approved applications in Canada needs to meet two criteria:
Product Standard (CAN/ULC-S705.1)
Pinnacles spray foam insulation products conform to CAN/ULC-S705.1 (including Amendments 1, 2 and 3). Our materials have been tested and evaluated by CCMC (Canadian Construction Materials Centre, a branch of the NRC) and comply with CCMC’s Technical Guide for Spray-in-Place Thermal Insulation.
Installation Standard (CAN/ULC-S705.2)
The National Building Code of Canada references the installation standard (CAN/ ULC S705.2) for the medium density spray polyurethane foam product, which requires that polyurethane foam sprayers be certified in order to apply the product. If you are new to the spray foam industry you must take the certification/training course and meet all of the requirements of the CAN/ULC S705.2 standards.