For maximum thermal efficiency with minimal thickness, Aerogel and Vacuum Insulation Panels (VIPs) are the most efficient internal wall insulations available. For a more practical balance of high performance, affordability, and ease of installation, Phenolic foam boards or PIR boards (often sold as insulated plasterboard) are the industry standard.
ISO-THERM is an innovative ultra-thin thermal wall insulation. It keeps internal walls warm and dry, helping prevent damp and mould issues. The patented textile-based Thin Internal Wall Insulation (TIWI) is ideal for both residential and commercial properties.
Foam Board or Rigid Foam
They provide good thermal resistance (up to 2 times greater than most other insulating materials of the same thickness), and reduce heat conduction through structural elements, like wood and steel studs.
Installing Internal Wall Insulation (IWI) can help to improve the thermal performance of a building. It can be particularly helpful to refurbish solid walled properties.
When it comes to thermal performance, Kingspan offers much greater thermal efficiency, with a significantly lower Lambda value compared to Rockwool. This allows you to achieve target U-values with much thinner boards.
Cons of Rockwool Insulation
The higher upfront cost may be a consideration for budget focused projects. Installation: Rockwool is denser than some other materials, which can make handling slightly more labor intensive during installation.
Interior walls are frequently left uninsulated during construction because the energy efficiency benefits aren't as great as insulating exterior walls, floors and ceilings.
Foam insulation is a common target because it's easy for them to chew through. The material offers little resistance, allowing mice to create tunnels or nests within the insulation. But mice aren't just interested in chewing for the sake of it—they're also drawn to the warmth and shelter insulation provides.
What time of year is Insulation cheapest?
ROCKWOOL's reputation as a rodent-resistant insulation is mainly based on word of mouth and lack of negative feedback from numerous customers who use our products in “cottage country”. That being said, if a certain pest type is a nuisance to your particular area, best practice is to protect the insulation.
The best non-toxic insulation is either mineral wool or foam insulation inserts.
Here are a few cost-effective ways to insulate internal walls:
A suitable air gap (approx. 1″) is left between the insulation material and the exterior walls to allow the walls to 'breathe' and to ensure damp or condensation does not build up on the inside of the property.
The best type of insulation for energy efficiency depends on your building's needs, climate, and budget. Spray Foam Insulation: Offers the highest R-value (~R-6.0 to R-6.5 per inch), providing exceptional air sealing and moisture resistance. It's ideal for irregular spaces and maximizing energy savings.
If you don't want to pull the wall off, you can do a blown in insulation like cellulose (loose or dense packed), fiberglass or denim. Drywall isn't that expensive to replace so, take that into consideration.
Overall, fibreglass insulation is the cheapest and most effective insulation option available, making it a popular choice for homeowners and builders alike.
Common Lifespans of Different Attic Insulation
Natural materials will inevitably degrade faster than synthetics, and some high grade synthetic materials can last virtually indefinitely if well taken care of. Fiberglass Insulation--The actual lifespan of this commonly used attic insulation is from 80-100 years.
Mice are curious and always searching for safe, snug, and warm nesting sites. Attics filled with blown-in insulation provide an excellent option–from the mice's point of view. As long as there is a ready food source. Mice are omnivorous and will eat and chew on almost anything including wood and electrical wires.
Key takeaways
Potential problems with spray foam insulation
reduce air circulation and ventilation within a roof space. lead to dampness and condensation on the underside of a roof because it forms an air barrier and stops moisture from escaping. place timber-framed roofs at risk of decay.
Boric Acid Insulation: A Game-Changer
Mice love to ingest old fiberglass insulation as they make their way into attics to nest and breed. Boric acid insulation isn't as appealing for mice to eat and can actually be fatal to them in large doses.
By insulating your solid walls, you could save energy, lower your heating bill and make your home more comfortable. If your house was built in the 1990s or after, it'll likely to already have wall insulation to keep the heat in.
Without proper insulation, this barrier is compromised, allowing cold air to seep into your home during winter and letting cool air escape in the summer. This not only makes your home less comfortable but also significantly increases your energy consumption, leading to higher heating and cooling bills.
On cold days, carefully touch interior wall surfaces with the back of your hand. Well-insulated walls should feel only slightly cooler than room temperature, while notably cold walls, particularly on exterior-facing sides, indicate poor insulation.