How Does Fibreglass Roof Insulation Work

Fiberglass insulation is essentially a thick layer of spun fiberglass full of tiny air pockets that trap air.

How does fibreglass roof insulation work.

Most insulation materials prevent heat loss through conduction reflective materials like radiant barriers work a bit differently. Dust accumulation on the reflective surface will reduce its reflective capability. Insulation guide insulation technical articles white papers no comments. Fiberglass insulation is not very efficient against moisture.

During the summer it would seem like a good idea to also insulate the underside of the roof in an effort to keep the attic cooler but the roof rafters are limited in being able to hold. This is video 1 of 5 on how to install a grp fibreglass flat roof from start to finish. Persistent roof leaks increase moisture in attics which contaminates fiberglass batt insulation. Radiant barriers and reflective insulation systems work by reducing radiant heat gain.

Fiberglass insulation also sometimes known as glass wool is made of tiny fibers of spun glass. As with any type of glass the threads that make up fiberglass can break leaving sharp edges. Which reduces heat transfer from the ceiling to the loft. Fibreglass can also support a range of other flat roof systems and structures that enhance the flat roof.

Glass fibre works as an insulator by traping air. Wet fiberglass insulation has no r value until it dries out unlike foam board or sprayed foam insulation which keeps its insulation properties even when wet. To be effective the reflective surface must face an air space. It is non conductive.

Fiberglass insulation traps heat when it s moving to a colder area from outside to inside your home in the summer and from inside the house to outside in the winter. How does fiberglass insulation work. The glass fibre with trapped air is a very poor conductor. The radiant barrier should be installed in a manner to minimize dust accumulation on the reflective surface.

11 29 2012 standard insulating co. Fiberglass roof insulation works like a blanket spread over your house keeping thermal. Glass fibre or other loft insulation materials are laid across the. This video deals with the basic construction of the timber decking c.

Fiberglass insulation was created in the early 1930s by a scientist at owens corning as an alternative to the highly combustible materials used to insulate homes in those days.