You are currently viewing Do you require insulation under loft space boards? Professional Loft Boarding And Insulation
Boarding + Insulation

Do you require insulation under loft space boards? Professional Loft Boarding And Insulation

When insulation is needed under the loft space piece?

Loft slabs are usually shielded with loose-fill or hardboard. Loose-fill consists of small items of product put freely in the cavity. Hardboard insulation has a much bigger surface and can be cut to dimension. It is frequently used under floor joists.

Lots of people believe that foam and fiberglass insulation need to be mounted by a specialist. While this holds, house owners can set up foam and fiberglass insulation themselves. Nonetheless, this requires some experience and a good understanding of building strategies. one thing to keep in mind is that setting up fiberglass insulation is not as essential as fixing sheets of paper or aluminum foil to the wall. The procedure requires mindful preparation as well as prep work. It also requires the use of unique tools as well as devices. These consist of.

Fiberglass dividing’s are made use of for a range of reasons. A few of these are listed below To decrease warm loss via wall surfaces and ceilings.

  • To prevent sound.
  • To give audio insulation
  • To stop moisture damage.
  • To stop pest invasion.
  • To offer insulation for clean areas.

Just how do I mount loft space boards over insulation?

Read This Before You Insulate Your Attic - This Old House

You might be questioning exactly how to set up the boards if the covering insulation is already in place. Do you press it with each other and screw the boards to the joists/timbers? Do you eliminate the insulation? Or is there a better means?

Loft space insulation is just one of the most effective ways to save money on heating costs. If you have a protected loft space, you can save up to 30% per year! The very same chooses the attic room of your residence. Consider including insulation in your attic room if you wish to save money on your next home enhancement job. You’ll marvel at how much cash you can save by shielding your attic room. Right here are a couple of tips to obtain you started.

1) Gauge your loft – You must gauge your loft before you can begin work. This consists of determining the roof and all the corners of the roof. Also, seek blockages such as roofing system light beams, joists, and braces. Use a measuring tape, and do not depend on your eyes alone.

2) Get rid of any existing insulation – when you recognize where all the obstructions are, you can begin removing them. Take care when functioning near electric cords as well as water pipes. Ensure you wear safety clothing, such as hander covers and safety glasses.

3) Eliminate old insulation – Next, get rid of the old insulation from the attic room. Be especially mindful when removing insulation as it may consist of asbestos. Wear safety garments and hander covers and also take care of with treatment.

4) Mount the brand-new fiberglass insulation – Since every little thing prepares, you can begin setting up the new fiberglass insulation. Be careful when functioning near outlets and pipes. Follow the producer’s instructions meticulously too.

5) Seal all spaces – Seal any voids left after completing the work. For example, ventilation holes must be secured with tape.

6) Examine your jobFinally, test your insulation work before leaving. You can do this by inspecting the temperature of the attic room. If there is no change in temperature, you recognize the insulation work was successful.

Where to obtain help with loft space insulation?

House Insulation Diagram

Taking care of fasteners to insulation is a straightforward job important for the best efficiency of your loft and roofing insulation; with the right products, such as rafters, very easy and economical.

How to protect your loft space.

1. Get rid of all loosened products from the loft location.

2. Remove any damaged or rotten flooring.

3. Cut and also fix rotten joists as needed.

4. Make use of a power saw to cut the beam of lights.

5. Screw the pigeon feet throughout the D-frame.

5. screw the pigeon-hole feet to the ends of the rafters.

6. Location the insulation between the rafters.

7. Cover with plywood.

8. Repair the loft legs to the flooring with screws.

9.  Finally, nail the boards to the flooring.

10. Fill up the spaces with insulation material.

11. change the damaged floorboards.

12. Replace the damaged roofing system beam of lights.

13. Place the loft legs.

14. Cover the top of the insulation with plywood.

15. Secure the plywood with screws.

16. Ravel all rough sides of the ceiling.

17. Repaint the whole attic area.

18. Enjoy!

Protecting an attic

Attic Insulation Contractors | Home Insulation Installation Company -  Advantage Construction

If you intend to transform your attic into a living space, such as a workplace, guest room, or significant collection, you need ‘warm’ roofing, meaning that the roof is protected. This insulation is excellent if the attic is used as a bedroom or storage area, although it is a lot more pricey,”

There are lots of options for installing roofing insulation. The suitable time to set up insulation is when a new roofing covering is being set up on the roofing system, as installing above the rafters is the most effective technological remedy. The disadvantage of insulation above the rafters is that it makes the roof higher, influencing the looks.

If it is challenging to protect above the rafters, the alternative is to insulate in between or under the rafters or integrate both. An important aspect is a headroom, as extra insulation under the rafters decreases the ceiling elevation.

In older buildings with existing loft areas, setting up insulation might imply the loss of the historic render, which is not constantly wise, mainly if the structure is listed.

Regardless of the type of insulation, it is essential to leave an air room of at the very least 5 cm between the insulation surface and the roofing system covering. This space must be well aerated to stay clear of condensation problems, which might need airflow openings at the roof covering, gutter, and ridge.

Quilted roof covering, ceramic tiles, and insulation boards (see listed below) are appropriate, but the boards ought to be cut accurately to prevent voids at the sides. Insulation alone does not necessarily give a leak-proof remedy to avoid draughts and heat loss, so all joints must be covered or hidden.

Choice of loft insulation.

If your attic is readily available and there are no problems with moisture or condensation, it should be easy to insulate – and also, in a lot of cases, you can do it yourself.

If your attic room is conveniently available and the regular beam of lights, you can use mineral woolen insulation rolls. The first layer is laid between the rafters, straight light beams that form the loft. Afterward, an additional layer is laid at appropriate angles to cover the joists and bring the insulation to the needed depth.

What should I look out for when protecting my attic?

A Bird's Eye View of the Benefits of Attic Ventilation - yellowblue

If you want to utilize your attic or loft space as a storage area, you need to lay boards over the beam of lights. If you just insulate between the light beams in advance, the insulation will not be thick sufficient.

You can raise the flooring to mount sufficient mineral wool under the brand-new flooring degree to achieve sufficient insulation. This can be done by attaching wood skirting boards to the joists or getting impressive plastic feet that fit over the joists and sustain the new floor covering. It is essential to leave a ventilated air room between the insulation and the panels to avoid condensation on the underside of the panels.

When laying the boards, make sure not to squash the mineral woolen, decreasing its insulation worth.

Insulation prevents warmth from escaping from the space, so it can obtain more relaxation in the loft space, creating or getting worse dampness or condensation issues. If you are protecting your attic room yourself, remember that you might need to improve airflow.

Before installing insulation, seek specialist suggestions to see if you can address any moisture problems. One more alternative for insulating the loft is insulation between and above the rafters – the sloping beams that create the roofing system. You can utilize stiff insulation boards, which you carefully cut to size, or spray foam insulation, which you can utilize on the roofing.

Both approaches require a roofing system insulation professional and can not be done as a DIY project.


  • The roof covering room is warmer than traditional attic room insulation, so you don’t need to stress over containers or pipelines freezing.
  • Due to the depth, there is no need to elevate the flooring, and also it can be covered with boards for storage.


Insulation at the rafter degree is considerably more costly than most basic attic room insulation.

  • Along with roof covering insulation, gable wall surfaces, sidewalls, and smoke shafts in the loft room likewise need to be shielded. If left uninsulated, the warmth would certainly bypass the new insulation and be inadequate.
  • Some service providers might recommend spraying foam insulation straight onto the bottom of the roofing and repairing it before repairing harmed roofing systems or leak troubles. As with other types of insulation, you ought to ensure the roof covering is dry and in good condition before including insulation.
  • If you intend to utilize the loft space as a heating area, you require to take a slightly varied approach and develop an appropriate space on the roofing system.
  • If you intend to use the loft space as a home or are already using it as a space, you must insulate all the wall surfaces and ceilings in between the heated and unheated rooms.

Sloping ceilings can be shielded with a layer of plasterboard on the inside of the insulation, as in the case of warm roofing’s.

Vertical walls can be insulated similarly

Buildings | Free Full-Text | Critical Review of Polymeric Building Envelope  Materials: Degradation, Durability and Service Life Prediction | HTML

Flat ceilings can be shielded in the same way as a typical loft.

Insulate all walls and ceilings around dormers and make sure that high-performance glass is used on windows and skylights.

Just like loft insulation, this is not DIY work. You will certainly need an expert installer to ensure that the insulation is sufficient and complete and that appropriate airflow is provided as called for.

To maintain your residence fresh, dry, and healthy, it needs to be aerated in and out. An excellent installer will undoubtedly ensure that ventilation is not deliberately blocked or secured; if insulation is self-applied, care must be taken to cover no vents, grilles, or air bricks.

Building Regulations in Northern Ireland require appropriate ventilation when loft space insulation is installed. This generally indicates mounting additional vents where there are insufficient airflow openings. Check with your local building authority to establish what is required for your house.

If your attic is hard to reach, you can have a professional set up blown-in insulation. Experts utilize specialized tools to blow the proper insulation into improper areas. They might use mineral wool fibers, customized cellulose, or polyurethane foam.

Level roofing’s ought to be insulated from above. A new layer of rigid insulation board can be laid on top of the weatherproofing layer, or a new layer of insulation can be laid straight on the wood roofing system surface area. This is best done when the roof requires to be replaced. If the roofing system needs to be replaced, insulation needs to be used to follow building laws.

It is possible to protect the roof from below; however, if not done appropriately, condensation can happen.

Installing level roof insulation can save loft space insulation’s actual home heating costs. This saving depends on which part of the residential or commercial property has a flat roof.

Installing insulation

The maximum thermal performance or R-value of insulation is very dependent on the proper installation. Property owners can install numerous sorts of insulation – mostly coverings, boards, and products that can be poured into place. (Fluid foam insulation can be put in but needs expert installment). Various other types require a professional setup.

If you work with a specialist licensed installer

Have several contractors provide you a composed price quote of the price for the needed R-value, and also do not be shocked if the quoted installation cost for a provided R-value is more than double.

Ask the professional regarding his experience in mounting the product present. The application can significantly influence the performance of the insulation.

Ask the professional concerning air securing solutions and prices, as it is good to secure air leakages before setting up the insulation.

To evaluate the installation of the blanket, it is a good idea to measure the density of the floor coverings and look for gaps between the floor coverings and between the mats and the structure. Next, examine whether the insulation is safely installed around building elements, such as electrical boxes, permeate the insulation. To analyze splashed or blown-in insulation types, determine the insulation’s deepness and look for spaces.

If setting up the insulation on your own, take notice of the supplier’s instructions and preventative security measures and inspect local building and fire codes. Do it on your own.

Insulation from rigid boards

Vented vs Unvented Attic | Building America Solution Center

Inflexible board insulation is usually installed by making use of a spray gun. The spray gun sprays liquid insulation onto the ceiling joists. After application, the insulation swiftly treatments.

Advantages of using loose-fill or inflexible insulation under ceiling tiles

  • Loose-fill insulation calls for no special devices or abilities to mount.
  • Loose-fill insulation is affordable.
  • Loose-fill can be easily eliminated if needed.
  • Loose-fill is easy to clean.
  • Loose-fill does not have tapered sides like rigid board insulation.
  • Loose-fill does not split or break down gradually.

Downsides of using

  • loose-fill or stiff board insulation under loft space slabs
  • Loose-fill insulation often tends to blow away in high winds.
  • Loose-fill insulation has to be well sealed to stop moisture infiltration.
  • Loose-fill requires much more maintenance than rigid board insulation.
  • Rigid board insulation is less complicated to remove.
  • Rigid insulation is much less likely to surprise in high winds.
  • Rigid insulation is less likely to shrink in time.

Benefits of mounting fiberglass insulation under foam core loft boards

Fiberglass insulation with a foam core is one of the best alternatives for positioning insulation under attic pieces, as it offers several advantages. Fiberglass foam core insulation supplies thermal protection, sound deadening, and enhanced power effectiveness. They also have exceptional fire resistance and are resistant to mold growth.

Foam insulation is offered in 2 types: loose-fill and a wooden board. Both kinds can be utilized for insulation under dirt slabs. However, each kind has its benefits and negative aspects.


Glass fiber insulation with a foam core offers superb thermal buildings. It is highly effective in lowering warm loss and enhancing convenience.

Glass fiber insulation with foam core is lightweight and also durable. It does not break or fall apart even after many years of use.

Fiberglass with foam core is fire immune. It is shed immune as well as lowers the threat of fire.

– Foam core fiberglass supplies exceptional noise suppression. It aids in reducing sound degrees by taking in noises that would otherwise circulate right into the loft room.

Glass fiber and mineral woolen insulation with a foam core are extremely economical.

Glass fiber and also foam core mineral woolen are easy to mount. You only require the necessary tools and skills to do the job.

Fiberglass or mineral wool with foam core can be easily cleaned.

Mineral wool with a fiberglass and foam core is readily available in many different densities. These include 3/8″, 1/2″, and 1″.

Mineral woolen with a fiberglass or foam core is made from recycled products.


Fiberglass, as well as foam core mineral wool insulation, can create problems if it splashes. This can bring about mold, which can make your home unlivable.

Foam insulation is hard to cut. Trimming foam insulation is a bothersome process involving using a lantern.

Styrofoam insulation breathes badly. It catches moisture in the attic area. Dampness build-up can result in mold and mildew as well as rot.

Fiberglass, mineral woolen, and various other sorts of foam insulation have a limited life expectancy. After concerning ten years, these items begin to shed their effectiveness.

Fiberglass, mineral wool, and various other sorts of foam core insulation tend to trap dust bits. Dirt particles can intensify allergic reactions as well as asthma.

Fiberglass does not expand when exposed to cool temperatures. Therefore, it can not help protect against condensation build-up on wall surfaces and ceilings.

Fiberglass is much more pricey than mineral wool insulation.

How to mount fiberglass boards under a loft space?

Keeping The Heat In - Section 5: Roofs and attics

If you want an affordable way to insulate the space under your loft boards, fiberglass insulation with a foam core is the best alternative. The following steps show how to install fiberglass foam core insulation under attic room pieces.


1. Remove all existing insulation matting

2. Remove all existing insulation from the location where the new insulation will undoubtedly be installed. 3. Cut fiberglass insulation with foam core to fit in between joists.

4. Cut fiberglass insulation with foam core to fit between the joists. Make sure insulation edges are       smooth and straight.

5. Affix the fiberglass insulation with foam core to the bottom of the attic room board. Secure the  insulation to the wood using screws.

6. Fill all voids between the insulation and the wall with drywall filler.

7. Grind the wall surface area up until smooth.

8. Apply primer to the whole wall.

9. Enable the guide to dry thoroughly before using an additional layer.

Advantages of using foam core insulation for loft space boards

Foam core insulation has several benefits over fiberglass insulation. Some of these are.

  • Foam core insulation is simple to clean.
  • Styrofoam is lightweight and also simple to transportation.
  • The Styrofoam core is less likely to catch dust.
  • Foam absorbs sound more easily than fiberglass.
  • Styrofoam is cheaper than fiberglass.

Disadvantages of using foam in attics

There are also disadvantages to using foam insulation in attic room panels. Here are several of the drawbacks.

  • Foam insulation sheds its efficiency after about ten years.
  • If the insulation gets wet, it breaks down promptly.
  • Styrofoam insulation is vulnerable to fire damage. 
  • Foam insulation is extra pricey than fiberglass insulation.


Insulation under the attic boards is necessary to maintain the heat out of the attic room. However, there are different kinds of insulation available. The selection of insulation must be determined by the money you want to invest, your attic room’s dimension, and the insulation’s quality.

Storage room in the current environment is much searched for in many UK houses. Among the choices that provide extra space is boarding out your loft space.

Here at the Loft of spaces, we supply a service that permits you to utilize the maximum existing room on your residential or commercial property. Loft space boarding is a reasonably low-cost service for adding more storage room to your house. Your loft space could be that extra storeroom that you have constantly wanted. Most of the time, in simply one day, your old, dark, and dusty loft space can be an intense, clean, and conveniently available space.

If you like this blog post please do visit Loft of space for more information. Thank you.