Can kingspan be used as loft insulation?

If you'll indeed be living in the loft, we would advise the following attic insulation installation methods: Between and under rafter insulation, with Kingspan Koolthem K107 Pitched Roof Board between rafters and Kingspan Kooltherm K118 Insulated Plasterboard below.

What is the best insulation for lofts?

Firm boards of either synthetic or natural materials, this is the best solution for insulating the underside of your roof. The boards provide highly effective insulation for your loft space and can also be decorated over.

Can I use Celotex to insulate my loft?

Using rigid insulation board as loft insulation

Some people may prefer to use rigid insulation board to insulate the loft space – for example Celotex or Kingspan – the process is pretty similar to above, although you will need less depth to achieve the same insulation levels (than mineral wool).

Can you put insulation board in loft?

You can use most types of insulation to insulate a loft, including insulation board, insulation roll and insulation slab.

Is kingspan better than rockwool?

Also despite being a good insulator, both Kingspan K5 and EPS have better thermal efficiencies, so you need more Rockwool to achieve the same u-values. We would always recommend using gloves when installing the Rockwool boards as the wool fibres can be really itchy.

loft conversion insulation with Kingspan or Celotex

How do you board a loft cheaply?

For a cheaper way to board than Diy store boards, buy larger flooring boards and cut them down yourself, better value for money especially if you can pick them up from a merchant. You can then measure loft hatch opening and lay in longer lengths, depending on height to pull boards up.

Are Celotex and Kingspan the same?

Celotex and Kingspan are the names of manufacturers that offer very similar insulation products. The individual products will of course vary, both in terms of how they can be used and the size of each.

Can I put Celotex between the ceiling joists?

Either a rigid PIR board (such as Celotex XR4000 or GA4000) can be cut to an exact fit and installed between the joists, or a more flexible glass mineral wool (GMW) roll or slab from ISOVER can be cut slightly oversize (i.e. 10mm wider than necessary) to ensure a friction fit when installed between the joists.

Can you put too much insulation in attic?

It's possible to over-insulate an attic as too much will cause moisture buildup and eventually result in mold. Eventually, adding more insulation leads to diminishing returns in trapping heat as well.

How thick should my loft insulation be?

Current government recommendations are for loft insulation to achieve a depth of between 250mm and 270mm but some new properties are increasing their level of loft insulation to 300mm. Again, as long as the loft has adequate ventilation, this is fine.

What insulation should I use in my ceiling?

Depending on where you live and the part of your home you're insulating (walls, crawlspace, attic, etc.), you'll need a different R-Value. Typical recommendations for exterior walls are R-13 to R-23, while R-30, R-38 and R-49 are common for ceilings and attic spaces.

Can you put kingspan in a ceiling?

You can install insulation at ceiling level via the following methods: Between and below joists with a combination of Kingspan Kooltherm K107 and Kooltherm K118. Between and above joists, using Kingspan Kooltherm K107 for both.

What is the thinnest loft insulation?

Phenolic is perhaps the thinnest insulation for a given u-value. To put this into perspective, a 40mm thick YBS SuperQuilt Insulation is equivalent to 70mm of PIR in a roof application.

Can you put 2 layers of insulation in attic?

You should install two layers of insulation in your attic; wood joists must be covered to allow the air to move. The first layer will sit between the joists, and the second layer will run perpendicular over the joists. The first layer should have the facing against the drywall to act as a vapor barrier.

Does kingspan need an air gap?

The timbers must be deep enough to allow the desired thickness of Kingspan Kooltherm K112 Framing Board to be fitted between them along with a 25 mm (min.) air gap between the insulation layer and the brick wall.

Is it a good idea to insulate between rafters?

The general advice we give is that you should always insulate between and above the rafters (warm roof) or between and under the rafters (cold roof).

Is it OK to insulate roof rafters?

Insulating between rafters will do no good, because the attic should be ventilated, and the rafter insulation would be between two unheated spaces. You can add insulation to the floor; the more the merrier. Just don't put it in the eaves. Also, make sure the attic is well ventilated.

Is Kingspan insulation any good?

Kingspan insulation boards offer excellent thermal performance. Compared to EPS, where you would need 90mm to reach building regulations, just 60mm of Kingspan insulation can bring your property in line with regulations.

How long does Kingspan last?

Every Kingspan product has an 'aged lamda value', which means that the figure we give you is the insulation board's lowest lamda value. The performance of our products is guaranteed, and we can assure that when installed correctly, our products will last the lifetime of the building.

Is Kingspan safe in houses?

We believe that cladding systems that incorporate our products, and that have been successfully tested to BS8414, are safe for use on buildings over 18 metres, where permitted, for example in offices in England & Wales. Learn more about our BS 8414 tested solutions.

Can you walk on loft boards?

If your loft floor isn't sufficiently boarded, movement can be tricky. Never stand on the plasterboard as this won't bear your weight and only stand on the ceiling joists if you have to. For easier movement in the loft, we recommend using walk boards (also known as crawl boards) laid across the joists.

Can I board loft myself?

Boarding a loft is a process that is relatively simple, so it can be done by a homeowner or DIYer to keep costs down.

Do you need planning permission to board a loft?

For a loft conversion to be considered permitted development, not requiring planning permission, it must: Not exceed the volume allowance of 40 cubic meters of additional space for terraced houses, or 50 cubic meters for detached and semi-detached houses.