Ideally, Sisalation should be used as waterproofing. Therefore, selecting the correct Sisalation Foils is very important as these foils, or even plastic underlays, need to last for many years.
What Is Sisalation
Sisalation is a shiny silver foil. Installing these types of foils in the home is beneficial to home comfort.
As a result, the Sisalation foils are manufactured from thin aluminium reflective foils. The foil is laminated to various other flexible membranes, including fibreglass reinforcement and flame retardant, which are additives in some products to prevent fire damage. Unfortunately, as we see in many homes, the lifespan is not as long as one would need in a home.
So, the theory behind foils and underlays in the roof space is twofold: First, they reduce heat flow into the roof space by reflecting the heat. Second, Sisalation reduces the dust that can and will settle on the home’s ceiling space.
How Sisalation Foils Works
Ideally, the foil must be fixed at least 38mm below the roof. The theory is that the cavity space will restrict the home’s heat on a hot summer day. This is possible while the foils are still new; however, this will reduce more as the dust settles on the foil.
Sisalation Foils will reduce airborne dust and exhaust fumes from reaching the inner roof space by landing on the foil.
If a roof leak occurs, the Sisalation foils will, in most cases, prevent ceiling damage, as the water will flow out to the guttering.Winter Sisalation Benefits
The Sisalation Foils will not directly affect the home’s internal temperature in winter. Heat in the house will rise through the ceiling space in uninsulated homes. As a result, all warm air will still be lost to the roof space. However, warm air will be retained indoors in homes insulated with roof insulation.
However, Sisalation foils or underlays will reduce the prospect of roof leaks during these cold winters. Reducing condensation in the roof is also an added benefit. Sisalation Summer Benefits
As the sun beats down on the roof space on hot summer days, the Foil reflects some of this heat away, resulting in a home that is one or two degrees cooler.
However, having said that there will be little to no benefit in homes with air conditioners if there is no ceiling insulation. The home’s cool air would still be lost to the roof space even though the foils have made this space slightly cooler.
Overall, it has been established that there will be a minimal summer benefit in terms of temperature. However, the benefit of protecting the roof space from rain damage is well worth the expense.
Add Insulation In The Ceiling for Maximum Benefits
Installing Foils as a form of insulation will disappoint you. Because foils can reflect heat, they do not mean they can restrict heat, as many homeowners who have their homes insulated will tell you.
Remember, foils are on the top layer of the roof space. Heat loss and gain are from the lower section of the roof space. As a result, installing home insulation will substantially improve temperatures.
This Is Why
Insulation Products installed directly on the ceiling will restrict heat flow up or down. Accordingly, there is a summer and a winter benefit. Insulated homes are known to have an improved indoor temperature of 4-8 degrees. There are many ceiling insulation types that you can read up on to make an informed decision.[
Is it Necessary to Install Sisalation Foils?
Absolutely Roof Foils help keep the roof space cleaner by reducing the dust flow into the roof via the tiles or sheeting. Additionally, there is a summer heat reduction in the roof space. And finally, should your roof leak, you will have little to no damage.
Firstly, Sisalation foils will reduce the roof space temperature by reflecting the heat away. Homes fitted with roof ventilators will also improve heat loss and substantially reduce roof foils. Roof foils with a roof ventilation unit will also reduce condensation in the roof space. Most importantly
Secondly, Radenshield or Sisaltion foil will also waterproof the home and roof space. For the best prices on roof foil products, check out our Foil price list.
