Q&A

What is TR27?

What is TR27?

Thermaroof TR27 is a high performance, fibre free, rigid thermoset insulation core faced on both sides with a coated glass tissue facing which is used for insulating flat roofs.

What thickness Kingspan do I need?

To get it right I expect you will need 65 to 75 mm of Celotex or Kingspan. You will need an airspace of at least 50 mm above the insulation and this must have free ventilation to the outside top and bottom to avoid condensation. This is why you don`t want absorbent rockwool.

Is kingspan good insulation?

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.

What is kingspan Thermaroof?

Kingspan Thermaroof TR26 is a high performance insulation with a fibre-free rigid thermoset polyisocyanurate (PIR) core. It is suitable for flat roofs waterproofed with mechanically fixed single-ply waterproofing, and has a thermal conductivity of 0.022 W/mK.

What is a warm roof construction?

A warm roof is a type of roof construction which has an insulation layer above the rafters, and immediately below its weatherproof membrane. A warm roof construction allows heat to be conserved within a property – without the need for a ventilation system.

What is flat roof insulation?

Flat roof insulation is used to maximise a building’s energy efficiency and minimise heat loss. A roof is typically classed as ‘flat’ if it has a pitch below 10°. Insulating a flat roof can lead to lower energy use, a reduction in condensation and a decrease in associated household bills.

What is the R value of 100mm kingspan?

4.30
Product Application

Product R Value (mK/W) Thermal Conductivity (W/mK)
TP10 100mm 4.30 0.023
TP10 105mm 4.55 0.023
TP10 110mm 4.75 0.023
TP10 115mm 5.00 0.023

How do you insulate a roof with exposed rafters?

When the rafters are exposed, such as in timber-frame houses, this technique is not feasible. The basic approach to insulating a roof with exposed rafters involves placing insulation on the exterior side of the finish ceiling and covering the insulation with a layer of sheathing.

Which is better Rockwool or kingspan?

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.

Is Rockwool cheaper than kingspan?

Pros – Cheaper – less than half the price of the kingspan (this price includes fitting), easier to fit, less likely to get gaps.

Can you walk on Kingspan insulation?

Please note however that you can’t walk, or store heavy goods, on top of ceiling level insulation; for this, we advise installing insulation at the rafters as detailed above.

Which is better cold or warm roof?

A warm roof is the easiest and most cost effective type of insulation and is an ideal choice for pitched roofs. On some flat roof extensions and balconies, a warm roof would increase the height and isn’t possible, in this scenario you should choose a cold roof insulation.

What kind of insulation does Kingspan thermaroof use?

Kingspan Thermaroof TR27 is a high performance insulation with a fibre-free rigid thermoset polyisocyanurate (PIR) core. With a thermal conductivities as low as 0.024 W/mK, it is used to insulate flat roofs waterproofed with fully adhered single-ply, partially bonded built-up felt, mastic asphalt and cold liquid applied waterproofing.

Is the Kingspan thermaroof tr27 approved by FM 4470?

Kingspan Thermaroof TR27 is available with FM Approval to FM 4470 – please see the product brochure below or search ‘Kingspan Therma’ on the FM Approvals online listing website for the conditions of approval.

Where does thermaroof tr27 insulation board come from?

Kingspan Thermaroof TR27 produced at Kingspan Insulation’s Pembridge, Herefordshire and Selby, North Yorkshire manufacturing facilities is certified to BES 6001 (Framework Standard for the Responsible Sourcing of Construction Products) ‘Excellent’.

Which is the best flat roof insulation board?

High performance flat roof insulation for roofs waterproofed with partially bonded torch applied multi-layer bituminous waterproofing. High performance flat roof insulation for roofs waterproofed with mechanically fixed single-ply waterproofing. High performance flat roof insulation for roofs with bonded waterproofing.