Cavity Wall Insulation

When properties have cavity walls, it isn’t uncommon for people to question whether they need full fill insulation or if partial fill insulation will be sufficient. Whilst there is no denying that partial fill insulation is better than no insulation, generally speaking, full fill options are much more beneficial. In fact, it isn’t uncommon for homeowners to have old partial fill cavity wall insulation removed and replaced with a full fill solution. If you’re contemplating which of these two options is best for insulating cavity walls, keep reading today. Below our experienced team have answered some of the questions we’re frequently asked by our customers about cavity wall insulation and highlighted some of the biggest benefits of installing full fill cavity wall insulation. 

What is Full Fill Cavity Wall Insulation?

The main difference between partial fill and full fill insulation is the amount of insulation that’s used in the cavity wall. Commonly, partial fill insulation allows for a 25mm to 50mm air gap, depending on the requirements of the building, whereas full fill insulation will completely fill the cavity and there won’t be any air gaps. 

Why do Homeowners install Full Fill Insulation?

There are lots of benefits associated with installing full fill solutions and not leaving any small holes or gaps in the cavity wall insulation, the most notable being the impact it has on energy efficiency. When you install high-quality full fill cavity wall insulation, less heat will be able to escape through the external walls and you can reduce your energy consumption. This will have a knock-on effect on your heating bills and you can save money each month. Not to mention, you won’t have as many issues with cold draughts either, so it will be easy to keep your home at a comfortable temperature all year round. 

What Insulation Materials are Available for Cavity Walls?

It isn’t uncommon for people to use glass mineral wool insulation in their cavity walls, however, rigid insulation boards are becoming increasingly popular for full fill solutions. Rigid polyisocyanurate (PIR) insulation solutions can help you to achieve lower U-values without increasing the overall wall thickness. These boards are very straightforward to install too and they’re a great solution for any type of property. 

How Much Does Cavity Wall Insulation Cost?

The cost of cavity wall insulation will vary depending on several factors, such as the insulation material, size, thickness and brand. There’s a lot to consider when comparing different types of cavity wall insulation and you shouldn’t focus solely on price. Generally speaking, high-performance products will cost more up-front, yet they can save you more money on your energy bills in the long run. Therefore, they’re a cost-effective investment. If you’re ever unsure which full fill cavity wall insulation is best to install, it’s beneficial to speak to an expert about the differences between various types of insulation. They will be able to recommend the best products for your specific needs and budget. 

Which Brands Supply Full Fill Insulation?

Several well-known brands supply cavity wall insulation, from Isover and Rockwool to Kingspan and Knauf, and they each have their benefits. There are a couple of brands that are particularly popular for full fill insulation projects nowadays; Celotex and Recticel. If you’re looking for a solution for 125mm cavities, for example, the 115mm Celotex Thermaclass Cavity Insulation or 115mm Recticel Cavity Insulation is a great choice. Both of these insulation boards are compact and space-saving solutions, they will help to avoid increased building footprints or reduced room sizes, and they’re very convenient to install. 

Purchasing Full Fill Cavity Wall Insulation 

If you think that full fill cavity wall insulation is the best option for your property, explore the Online Insulation website today. We supply a vast range of insulation products that are perfect for cavity walls and we pride ourselves on providing high-quality insulation at affordable prices. We have partnered with some of the largest manufacturers and distributors of insulation to enable us to sell quality insulation at low prices, and deliver insulation in a timely manner. Should you need some guidance when comparing different cavity wall insulation solutions, our team will be happy to help. We have over two decades of experience in the insulation industry and we can provide you with the informed and impartial advice you need. Don’t hesitate to get in touch with us if you have any questions about full fill cavity wall insulation.