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Installation

The flexibility and performance of our products is unsurpassed. Through different application techniques, our products can be used to insulate every space or surface requiring insulation. Whether it's new construction or a retrofit application, our products can fill the void. For most applications, Therm-O-Comfort follows the Canadian Cellulose Insulation Manufacturers Association industry guidelines. To download a free copy, click here.

New Construction

In new construction our products can be blown or sprayed. When installing blown insulation, the framing must first be covered with a netting material secured to the structure with either staples, strapping or acoustic channel. The insulation is then injected behind netting under sufficient pressure to compress it to a non-settling state of 3.0 lb/ft3 (48 kg/m3). The process of compressing the insulation to its non-settling state is referred to as "Dense Packing". For spray applications, the product is blown through a nozzle equipped with spray tips. The spray tips apply either water or a water adhesive mixture to the product as it exits the nozzle. With this method, insulation can be injected into cavities or on to open vertical or overhead surfaces.

Retrofits

In existing buildings (i.e. Retrofit Applications) the most common method to insulate a wall, floor and cathedral ceiling cavity is to Dense Pack the cavity. Insulation is injected into the cavity through specialized nozzles or a filling tube, through pre-drilled holes or pre-cut openings. The injection process can be carried out through the interior or exterior of the structure . Filling cavities from the the exterior is often the preferred method as filling holes can be concealed behind the siding or within the mortar joint of a brick structure.

Open Spaces (Attics)

Whether the attic floor is flat or sloped up to a pitch of 4.5 in 12, loose-fill insulation is the most economical choice. It is the quickest and easiest method of insulating these spaces and does not require specialized equipment. For sloped attic floors with a pitch exceeding 4.5 in 12 our Type 2 stabilized product must be used. This product contains an internal dry binder and is applied with moisture in order to activate the adhesive. Our products are perfect for upgrading existing insulation levels and is a popular choice over existing low density fiberglass insulation.

The procedure for retrofit attic applications is the same as new construction. However, special attention must be given to identifying and safeguarding against fire hazards and ensuring adequate ventilation.

Enclosed Cathedral Ceilings

In new construction cathedral ceilings are typically blown using the Dense Packing process. Since this is an overhead application, strapping or acoustic channel is required to prevent excessive bulging during the blowing process as well as provide support for insulation prior to drywall installation. When insulating such spaces it is important to adhere to the code requirements for ventilation. Under most building codes continuous ventilation must be provided from the soffit to the ridge vent. This can be accomplished by either stapling foam vents directly to the roof sheathing or stapling cardboard vents to the rafters/truss cords 2.5" (64mm) below the roof sheathing. Since providing ventilation in retrofit application is often not practical, the cavity can be completely packed. Risk of condensation and related damage is very remote as the insulation is compressed to a sufficient density to prevent the movement of moist air to cold surfaces. Additionally, the product is treated with an agent that actively prevents the growth of fungi.

Enclosed Flat Roofs

Insulation can be installed into new or existing buildings using the same technique as cathedral ceilings. The exception being the installation of vents. In flat roof applications adequate ventilation can be provided by filling the cavity under minimal pressure, thereby allowing the product to settle slightly and provide a ventilated space.

Exterior Floors

Whether the application is a cottage on piers or a dropped garage ceiling, our product can insulate the structure. In this application floors are typically blown behind netting which is supported by strapping or acoustic channel. When blowing floors it is important to dense pack the cavity around the perimeter of the floor to prevent cold air from circulating under the subfloor. To protect the insulation, all exposed floors must be covered with either an exterior grade reinforced fabric or sheathing material such as plywood OSB or steel siding.

Above Grade Exterior Walls

For new construction walls are either blown or sprayed. Blowing walls is a simple process which requires the application of a netting material after which the hose inserted into the cavity and the space dense packed. In retrofit applications, wall cavities are dense packed using a variety of different diameter nozzles or filling tubes. Filling tubes are a popular method when retrofitting cavities with existing batt insulation. It involves inserting a thin 1" tube between the existing batt and the exterior sheathing. When insulation is injected into the cavity, the batt is compressed and the cavity dense packed with cellulose. This is a proven method to reduce air infiltration in older homes.

Insulating wall cavities with spray insulation is a faster process and requires less material since the insulation is bound to itself and the wall surfaces with a water based adhesive. This process does require specialized equipment and training and is designed for professional insulating contractors.

Below Grade (Basement) Walls

Whether blown or sprayed, our products are an effective way to insulate basements. The installation procedures are generally the same as those used in above grade walls. When basements are intended to be finished, typically they are framed. The foundation wall will be covered with a moisture barrier and the framing kept approximately 1" off the wall. In these cases insulation can be blown or sprayed used the same techniques as above grade walls. When sprayed, the cavities do not require filling to achieve the minimum R-Value. This simplifies and speeds up the insulating process. For basements that are not framed or intended to be finished, only our spray product can be used. Therm-O-Spray is an quick cost effective alternative to fiberglass blanket insulation. One difficult area to effectively insulate in a basement is the rim joist and joist header areas. Although both spray and blown products are suitable for this application, spraying these areas is a quicker and more cost effective method.

Fire and Sound Rated Separations

Both wood and steel assemblies can be either blown or sprayed using conventional new construction techniques. In double wall assemblies the cavities can be completely filled, including the 1" air space. By doing so, the sound rating of the assembly is improved. The general rule of thumb is that 2" of insulation will improve the sound rating of the assembly by 1 STC. When blowing steel assemblies the netting material must be held in place by resilient sound channels or metal furring. In floor assemblies, steel netting must be applied to the underside of the framing in order to hold the insulation in place.

Thermal Barrier for radiant floor systems

Our spray products are ideally suited for radiant infloor heating systems. Sprayed to the underside of the subfloor or steel decking, Therm-O-Spray will ensure the radiant heat system operates efficiently.