Learn what Spray foam insulation R-value means in Toronto
This is a great product made from polyurethane polymer. It comes about as an alternative use of fiberglass insulation that was used traditionally during construction. Compared to other types of insulation, this one reduces air leakage. It can also be used to fix cracks in the walls. This spray is installed by a spray foam contractor with the necessary chemicals and equipment. However, this spray foam is very messy when used. It is also not foolproof more so when wrongly mixed under an unfavorable temperature. It is prepared by mixing and reacting unique liquid components on a site using special equipment and as soon as the chemicals are mixed a chemical reaction begins leading to foams from a fluid mixture, and it then hardens. Insulation helps to cut heat loss and to control the surface temperature. R-value is the common term that is used to assess the type of insulation one may need to use. It measures how well a particular insulation will resist the flow of heat but does not measure the heat movement. Its use is much efficient and causes comfortably. The problems that may come about due to its use are less frequent and easier to overcome. Putting spray foam insulation in a building requires a thermal barrier which separates it from the occupied space. This can be used to increase fire resistance in the case of a fire outbreak.
Spray foam can be employed:
- Around exterior faucets
- At electrical and gas penetrations
- On water filters
- On securing walls in the landscape
- Where sliding and foundation meets
There are two primary flavors of the spray foam.
The open-cell foam and the closed-cell foam. They have different densities. The density of the form, in this case, is directly proportional to the R-value per inch. The closed-cell foam has a larger density that the open-cell one making its R-value to be higher. The open-cell foam is vapor-permeable, and it uses significantly less material, and this makes it look more attractive. It often requires an interior vapor retarder. It uses carbon or water as the blowing agent. Whereas the closed-cell foam is a vapor retarder. It is the most expensive insulator. Its performance is way better than any other insulation. Its high density makes it be able to add structural strength to the walls and impact resistance. Closed cell spray foam can be applied at a low temperature, and it is ideal for a continuous insulation. It has a higher tensile and a significant bond strength. However, it rejects bulk water. It is suitable for both interior and exterior insulation. It has R-value of 6″. Open cell spray foam can be installed at a low cost, and it can achieve great R-value because it suffers no restriction by space. Using it makes it possible to a long-term creep and seasonal movements, permitting bi-directional drying. It is mostly suitable for interior insulation. It has a sound dampening. It does not reject bulk water. It has R-value of about 3.5-3.7″. this type of spray foam insulator is also known as half-pound foam.
Open-cell spray foam is applied to the walls, the ceilings, and the roof while closed-cell spray foam is used under slabs, walls (below or above grades), roofs and ceilings.
The common mistakes users make when spraying the insulation is:
- Not ensuring that the foam is thick enough
- Missing out the leakage sites.
- Having no understanding on the building envelope hence spraying too much or too little.
In order to determine insulation effectiveness consider:
- Air intrusion
- Moisture accumulation
- Air infiltration
Pros and cons of Foam Insulation in Toronto
Spray foam insulation helps lower utility cost. This is because it blocks both cold and heat from outdoors. It can insulate homes better than the traditional products. It also can provide protection against moisture which may cause mildew and mold. It serves as a noise distraction.
It causes health issues because it can affect the respiratory system and causes eye irritation. It can cause inflammation to the skin through direct contact, leading to a rash. It may be a cause of a dry cough, headaches, fever, muscle aches and chest tightness.