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Roof Insulation

Thermal roof insulation is usually installed to improve thermal performance of the house (reduce heating and cooling of space). This in turn reduces energy use to make the house warm. It also reduces carbon dioxide emission to make the house more environmentally friendly and also reduces energy cost. The advantages of installing roof insulation are the increase in living space (converted lofts) and the elimination of condensation on roof surfaces during cold temperatures.

The roof insulation must be installed dry and be kept in this state. When installing board and batt type roof insulation, gaps should not be left as they minimize roof insulation effectiveness. Other factors influencing roof insulation effectiveness include temperature cycling, vibrations, and other similar mechanical forces. The functionality of your roof membrane is also crucial. If you cannot install roof insulation correctly, you will seriously impair its efficiency.

Two types of roof are most commonly found in commercial and residential settings: Flat Roof and Pitched Roof.

Flat Roof

Flat roof can be constructed to create what is called a ‘warm roof’ or a ‘cold roof’ depending on the position of the insulation installed. Inverted roof construction is also used in flat roofs exposed to high temperatures.

Pitched Roof

Depending on the design two types of pitched roof can be found: with a ceiling and without a ceiling. Pitched roofs also use cold and warm specification. These can be further classified into cold breathing, cold ventilated, warm breathing and warm ventilated roofs.

Insulationhsop.co offers a wide range of flat and pitched roof insulation from the manufacturers: Celotex, Xtratherm, Knauf, Kay Metzeler, Cellecta and others. For more information about the particular products please see product description.

R-value Comparison Chart for Roof Insulation for products available at Insulation Shop


Legend

1* Rockwool RW3 Slab (Prorox SL930)

2* Earthwool RS45 Universal Slab, Earthwool RS60 Universal Slab, Earthwool RS100 Universal Slab, Rockwool RWA45 (Prorox SL920)

3* Earthwool Flexible Slab, Rockwool Flexi Insulation Slab

4* Rockwool Hardrock Multi-Fix Dual Density Board

5* Rockwool RW5 Slab (Prorox SL960)

6* Celotex FR5000 Fire Resistant Insulation Board, Xtratherm XtroLiner Insulation Board

7* Celotex TB4000 Insulation Board, Celotex GA4000 Insulation Board, Celotex XR4000 Insulation Board, Celotex Crown-Bond Flat Roof Insulation Board, Celotex Crown-Fix Flat Roof Insulation Board, Celotex Crown-Up Flat Roof Insulation Board, Kingspan Thermapitch TP10 Pitched Roof Insulation Board, Kingspan Thermaroof TR26 Insulation Board, Xtratherm Thin-R Insulation Board, Recticel Eurothane GP Insulation Board, EcoTherm EcoVersal Insulation Board, Kingspan Thermaroof TR31 bonded to Plywood, Xtratherm Plydeck bonded to OSB, Recticel Plylok Flat Roof Insulation bonded to Plywood, EcoTherm Eco-Deck - Insulated Flat Roof Decking

8* Kingspan Thermaroof TR24 Insulation Board, Kingspan Thermaroof TR27 Insulation Board, Xtratherm Flat Roof Board FR-MG, Xtratherm Flat Roof Board FR-BGM

9* Kingspan Kooltherm K7 Pitched Roof Board, Xtratherm Safe-R insulation Board

10* Cellecta Yelofoam X2i, Cellecta Hexatherm XPLY Plywood Thermal Laminate Roof Board, Kingspan Styrozone H350R Flat Roof XPS Board

11* Grey Polystyrene (Graphite) EPS

12* Cellecta Hexatherm XROOF 300L XPS, Cellecta Hexatherm XDRAiN

13* Cellecta Hexatherm XROOF 300L XPS, Cellecta Hexatherm XMD Vertical Up-Stand Roof Board, Cellecta Hexatherm XDRAiN Drainage Channel Inverted Roof Board, Sundolitt XPS300 Extruded Polystyrene Board

14* Kingspan Styrozone N300R XPS Board 

15* EPS100 Polystyrene Insulation Board Jablite, Kingspan Styrozone N500R XPS Board

16* EPS70 Polystyrene Insulation Board Kay-Metzeler 

17* Jablite EPS70 Polystyrene Insulation Board

18* White Polystyrene Board

CHOOSE MANUFACTURERS or scroll down to see products

50mm Ravatherm XPS X 500 SL Extruded Polystyrene Board - pack of 8
Guide Price
Brand: Ravago Building Solutions Model and Size: 1250x600mm - 6.0m2
Delivery Time: 2 - 3 working days
50mm Ravatherm XPS X 500 SL Extruded Polystyrene Board is an extremely durable thermal insulation board made of extruded polystyrene offering exceptional thermal performance and versatility. It is a lightweight board that is able to withstand extreme loads. It is highly water resistant pol..
50mm Ravatherm XPS X 700 SL Extruded Polystyrene Board - pack of 8
Guide Price
Brand: Ravago Building Solutions Model and Size: 1250x600mm - 6.0m2
Delivery Time: 2 - 3 working days
50mm Ravatherm XPS X 700 SL Extruded Polystyrene Board is an extremely durable thermal insulation board made of extruded polystyrene offering exceptional thermal performance and versatility. It is a lightweight board that is able to withstand extreme loads. It is highly water resistant pol..
Brand: Rockwool Model and Size: 1000mm x 610mm - 7.32m2
Delivery Time: 1 - 2 days
50mm Rockwool Rocton Slabs are a reliable and durable non-flammable insulation solution for universal use. These high density slabs can be used in partition walls, curtain walls, within steel and timber frame structures, over ceilings and between floor joists. Rockwool Rocton has the highest so..
Brand: Polyfoam XPS Model and Size: 1200x600mm - 30.24m2
Delivery Time: 5 - 7 days
56mm Polyfoam XPS Upstand Board is a high strength (kPA 200) extruded polystyrene laminated board used for the thermal insulation and protection of upstand and parapet walls. Polyfoam XPS Upstand board consists of a 50mm high performance rigid extruded polystyrene (XPS) with a tough, weather re..
56mm Xtratherm FR/TP Thermal Ply Flat Roof Board - 50mm PIR and 6mm Plywood Board
Guide Price
Brand: Xtratherm Model and Size: 2400x1200 - 2.88m2
Delivery Time: 1-3 working days
56mm Xtratherm FR/TP Ply is a composite insulated panel of 50mm Xtratherm Polyisocyanurate core with a composite foil face, bonded to 6mm WBP grade plywood board. Xtratherm FR/TP Ply is designed to provide high levels of thermal insulation and decking in one operation for new and refurbish..
60mm Kingspan GreenGuard GG700 XPS Board (pack of 7) - Insulation for Car Park Decks, Heavy-duty Industrial, Commercial and Cold Store Floors
Guide Price
Brand: Kingspan Model and Size: 1250x600mm - 5.25m2
Delivery Time: 3 - 5 days
60mm Kingspan GreenGuard GG700 XPS Board is an insulation for car park decks, and heavy-duty commercial, industrial and cold store flooring. They have high compressive strength, and a closed cell structure which resists the absorption of ground water and the passage of water vapour. The GreenGu..
75mm Long Carbon Steel Hex Head Screws For Fixing Eco Panel To 3.5mm Steel Purlins - pack of 100
Guide Price
Brand: ZVM Model and Size: 75mm x 5.5/6.3mm - 100nos
Delivery Time: 1 - 2 days
75mm Carbon Steel Hex Head Self Drilling Screws for securing steel sheets and insulated panels to up to 3.5mm thick steel purlins.  They can be used with galvanised or stainless steel bonded sealing washers with 2mm or 3mm thick epdm. They are suitable for attaching roofing sheets, composite pa..
80mm Long Carbon Steel Heavy Duty Hex Head Screws For Fixing Eco Panel To 12.5mm Steel Purlins - pack of 100
Guide Price
Brand: ZVM Model and Size: 80mm x 5.5/6.3mm - 100nos
Delivery Time: 1 - 2 days
80mm Carbon Steel Heavy Duty Hex Head Self Drilling Screws for securing steel sheets and insulated panels to up to 12.5mm thick steel purlins. They can be used with galvanised or stainless steel bonded sealing washers with 2mm or 3mm thick epdm. They are suitable for attaching roofing sheets, compos..
80mm Long Carbon Steel Hex Head Screws For Fixing Eco Panel To Timber - pack of 100
Guide Price
Brand: ZVM Model and Size: 80mm x 6.5/7.1mm - 100nos
Delivery Time: 1 - 2 days
80mm Carbon Steel Hex Head Self Drilling Screws for securing steel sheets and insulated panels to timber purlins.  They can be used with galvanised or stainless steel bonded sealing washers with 2mm or 3mm thick epdm. They are suitable for attaching roofing sheets, composite panels and flashing..
90mm Actis Hybris Panel - Reflective Multifoil Insulation - 1145mm x 1200mm - pack of 4 90mm Actis Hybris Panel - Reflective Multifoil Insulation - 1145mm x 1200mm - pack of 4
Guide Price
Brand: Actis Model and Size: 1145mm x 1200mm - 5.5m2
Delivery Time: 2 - 3 working days
90mm Actis Hybris Panel is a multi-foil insulation featuring a unique and flexible honeycomb structure that combines insulation, air tightness, moisture resistance and reflective properties. The low-emmissivity honeycomb structure is protected from excessive dust and air movements. Actis Hybris..
Guide Price: £42.50
£51.00 inc VAT
90mm Earthwool FrameTherm Roll 32 - Glass Mineral Wool Knauf (Split 3 x 380mm) - Pallet of 24
Guide Price
Brand: Knauf Model and Size: 4.5m x 1.4m - 123.2m2
Delivery Time: 2 - 3 weeks
90mm Knauf Earthwool FrameTherm Roll is a lightweight, flexible, resilient and non-combustible glass mineral wool quilt, used for friction fitting between timber studs and rafters. The rolls are 1140mm wide and ready cut to produce 3 rolls in 380mm widths. It is specifically designed for f..
Cellecta HexaTex - Thermal Improvement Membrane for Roofs - 1.5m x 50m roll
Guide Price
Brand: Cellecta Model and Size: 1.5m x 50m - 75m2
Delivery Time: 2 - 3 working days
Cellecta HexaTex is a high performance thermal improvement membrane suitable for use on inverted roofs finished with gravel ballast, and concrete pavers on appropriate supports. Dramatically minimises the cooling effect associated with rainwater flowing down through the insulation and drai..
Brand: Ceresit Model and Size: 280ml
Delivery Time: In Stock 1-2 working days
Ceresit CS-101 is a professional adhesive, sealant and polymer filler based on the Flextec technology - Henkel's patented state-of-the-art polymer-based technology that guarantees excellent gluing and sealing results for most materials. Ceresit CS-101 is characterized by high initial tack and fast c..
Brand: Ceresit Model and Size: 300ml
Delivery Time: In Stock 1-2 working days
Ceresit CS-11 Acrylic Sealant is used to fill joints, cracks and cavities in all kinds of walls, plaster and wood. It has high adhesion to any compact, porous and absorbent materials such as: aerated concrete, gypsum, sandstone, chipboards and plasterboards, and materials such as paint coatings, cer..
Brand: Ceresit Model and Size: 280ml
Delivery Time: In Stock 1-2 working days
Ceresit CS-28 is a one-component thermo resistant flexible silicone sealant, resistant to temperature fluctuations from -65 ° C to +260 ° C, and even up to +315 ° C for a short time. It has very good adhesion to non-porous surfaces such as: metal, glass, wood, silicone resin, vulcanized silicone rub..
Brand: Ceresit Model and Size: 280ml
Delivery Time: In Stock 1-2 working days
Ceresit CS-38 is a one-component, high-temperature sealant resistant to direct contact with fire and temperature fluctuations up to +1,200 ° C, and for short periods even up to +1,500 ° C. It has very good adhesion to surfaces such as: concrete, cement mortars and plasters, bricks (also refractory),..
Brand: Ceresit Model and Size: 280ml
Delivery Time: In Stock 1-2 working days
Ceresit CS-7 is a one-component, flexible white sealant based on acrylic dispersion, used in filling and sealing joints, cracks and voids in all kinds of building materials. Ceresit CS 7 has high adhesion to any compact, porous and absorbent materials such as: aerated concrete, gypsum, sandston..
Ceresit CS-8 Universal Silicone Sealant - 280ml
Guide Price
Brand: Ceresit Model and Size: 280ml
Delivery Time: In Stock 1-2 working days
Ceresit CS-8 is an universal Silicone Sealant CS 8 is used to fill gaps between building materials and finishing elements. It has excellent adhesion to ceramic tiles, wood, enamel, porcelain and painted surfaces. It is also used for sealing windows, doors, glass blocks, glass blocks, bathtubs, ..
Ceresit CS-9 Sanitary Silicone Sealant - 280ml
Guide Price
Brand: Ceresit Model and Size: 280ml
Delivery Time: In Stock 1-2 working days
Ceresit CS-9 is a sanitary silicone for filling joints between ceramic tiles and gaps at sanitary facilities in kitchens and bathrooms. It is permanently flexible, resistant to cleaning agents, moisture and weather conditions. Provides a tight connection in places where ordinary sealants crack. Cere..
Brand: Ceresit Model and Size: 870ml
Delivery Time: 1 - 2 days
Ceresit TS70 Mega is a high performance, one component low-pressure expanding polyurethane foam used for quick mounting of frames and for filling cavities, supplementing thermal and acoustic insulation. Ceresit TS 70 Mega foam is used for setting and sealing door and window frames, window sills, rol..
£9.80
£11.76 inc VAT
Brand: DuPont Tyvek Model and Size: 1.5x50m - 75m2
Delivery Time: 1 - 2 days
DuPont AirGuard Reflective is an air and vapour control layer that is 100% air tight. It has a metallised surface with a very low emissivity internal vapour barrier that can enhance thermal comfort by reflecting up to 95% of radiant heat back into the building. It is usually installed with an air ga..
Brand: EWI Pro Model and Size: 5L
Delivery Time: 2 - 3 working days
EWI-360 Fungicidal Wash can be used internally or externally on a variety of surfaces, such as brickwork, blockwork, stone, wood and plaster and also be used on roof tiles, slates, steel sheets, roofing felt and timber. EWI-360 would kill all micro-organisms, such as algae, mould, mildew and lichen...
£19.08
£22.90 inc VAT
Model and Size: 1m x 50m
Delivery Time: 1 - 2 days
Easy-Trim Master 112GSM Breather Membrane is an air tight, vapour permeable, lightweight breather membrane for fully supported and unsupported installations in pitched roofs. It is a high performance breather membrane, consists of 3 layers to achieve a high vapour permeability, superior water r..
Guide Price: £39.88
£47.86 inc VAT
Icopal Extra Strength Top Coat Bitumen Roofing Felt 5.2mm - Torch On - 1m x 5m - Pallet of 24 rolls
Guide Price
Brand: Icopal Model and Size: 1m x 5m - 120m2
Delivery Time: 7 - 10 days
Icopal Extra Strength Top Coat Bitumen Roofing Felt is an extra strength top coat roofing felt, made of heat-hardened polyester and thicker waterproofing on both sides for roofs and foundations. A latest generation, patented, specialised roofing felt for flat roofs. Due to the shorter heating t..
Brand: Icopal Model and Size: 1m x 10m - 200m2
Delivery Time: 7 - 10 days
Icopal  Roofing Felt Underlay 3mm Hydrobit V60 S30 Bitumen - Torch On is an extra strength base bitumen roofing felt, made of glass fleece reinforcement, coated with SBS modified bitumen blend with mineral filler, top side is finished with sand, bottom side is finished with foil. A latest ..
Brand: Low-E Model and Size: 1.25m x 24m - 30m2 - Free Delivery
Delivery Time: 1-3 working days
Low-E Micro-E Perforated gives you all the benefits of a reflective foil insulation, but the perforations are designed to allow moisture to pass through the product while limiting air movement. Low-E Perforated is recommended for use on the external sides of an insulati..
£160.79
£192.95 inc VAT
Brand: Low-E Model and Size: 1.25m x 24m - 30m2 - Free Delivery
Delivery Time: 2 - 3 working days
30m2 Low-E Micro-E Reflective Foil Insulation Roll gives a superior air infiltration barrier that reduces draughts and uncontrolled air movement and also increases thermal performance by blocking up to 97% of radiant heat. It is also a vapour control layer. Micro-E Reflective Foil Insulati..
£160.79
£192.95 inc VAT
Brand: Low-E Model and Size: 1.25m x 4m - 5m2 - Free Delivery
Delivery Time: 1-3 working days
Low-E Perforated gives you all the benefits of a reflective foil insulation, but the perforations are designed to allow moisture to pass through the product while limiting air movement. Low-E Perforated is recommended for use on the external sides of an insulation system and is certif..
£44.69
£53.63 inc VAT
Brand: Low-E Model and Size: 416mm x 24m - 10m2 - Free Delivery
Delivery Time: 1-3 working days
10m2 Low-E Tab 16 Reflective Foil Insulation Roll gives a superior air infiltration barrier that reduces draughts and uncontrolled air movement and also increases thermal performance by blocking up to 97% of radiant heat. It is also a vapour control layer. Low-E Tab Reflective Foil Insulation&n..
£69.37
£83.24 inc VAT
Brand: Low-E Model and Size: 1.25m x 12m - 15m2 - Free Delivery
Delivery Time: 1-3 working days
15m2 Low-E Ultra-E Reflective Foil Insulation Roll is a 11mm thick superior vapour control barrier that greatly reduces noise transmission, while the pure aluminium facings still reflect up to 97% of radiant heat. Low-E Ultra-E Reflective Foil Insulation is totally non-toxic and with no fibres,..
£151.88
£182.26 inc VAT
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