FOAM-LOK open cell spray foam insulation provides a cost effective fully breathable insulation solution. Manufactured by Lapolla Industries it is installed by a nationwide network of trained and registered contractors each of whom undergo regular audit to ensure that installations are carried out in line with the appropriate Part L insulation and Part F ventilation regulation requirements.
It will provide a sealed thermal and airtight building envelope, eliminating heat loss and creating a comfortable healthier indoor environment. Less energy will be employed with FOAM-LOK insulation to heat or cool the building saving up to 50% on monthly costs and keeping conditioned air inside and unconditioned air out.
FOAM-LOK spray foam is an air barrier but not a vapour barrier and will manage moisture migration through the wall or roof structure.
Thermal conductivity of 0.037 W/mk (Lambda 90/90).
Euroclass E fire rating as a stand alone product. This is unique to open cell spray foam insulation types.
Class C sound absorption at 160mm.
Air Tightness Explained
Air tightness, also known as the coefficient of heat transfer, a measure of the rate of heat loss or gain across a material through the process of conduction. U-values gauge how well a material allows heat to pass through. U-value ratings generally fall between 0.16 and 1.20. The lower the U-value, the greater a product’s resistance to heat flow and the better it’s insulating value. U-values are expressed in units of W/m2 °K.
The R-value is the reciprocal of the conductivity of a material and is the measure of the capacity of a material to resist heat transfer. The higher the R-value of a material, the greater it’s insulating properties. It is important to be aware that R-values depend not only on thickness but also on material type and installed weight per unit area. The effectiveness of an insulation’s resistance to heat flow also depends on how and where the insulation is installed. For example, compressed mineral wool will not provide its full rated R-value. The overall R-value of a wall or ceiling will be somewhat different from the R-value of the insulation itself because some heat flows around the insulation through the studs and joists.