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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

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, sandstone, ch..
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, showe..
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
Easy-Trim Master 112GSM Breather Membrane for Pitched Roofs - 1m x 50m Roll
Guide Price
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 resist..
Guide Price: £39.88
£47.86 inc VAT
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 Reflective Foil Insulation 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 a..
£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
Novia 500G Vapour Control Layer 2.7m x 50m Roll
Guide Price
Brand: Novia Model and Size: 2.7m x 50m
Delivery Time: 1 - 2 days
Novia 500g Vapour Control Layer is a traditional specification, single-ply, non-laminated, virgin grade blown polythene material for use as an air leakage barrier and vapour control layer (AVCL) in insulated wall, roof and floor applications. It is is particularly suitable for use in residential tim..
Guide Price: £68.95
£82.74 inc VAT
Novia 509B Shed Lining Paper 1.8m x 50m Roll
Guide Price
Brand: Novia Model and Size: 1.8m x 50m
Delivery Time: 1 - 2 days
Novia 509B Shed Lining Paper is suitable for use in a wide range of garden structures and adds an extra level of protection to your building by creating a wind proof and waterproof outer layer. It is an ideal option for uninsulated garden structure construction and for renovating a current uninsulat..
Guide Price: £114.94
£137.93 inc VAT
Novia BS 1521 Grade A1F Building Paper 1m x 25m Roll
Guide Price
Brand: Novia Model and Size: 1m x 25m
Delivery Time: 1 - 2 days
Novia BS 1521 Grade A1F Building Paper is a traditional, reinforced kraft paper bitumen-bonded, building paper laminate for use as a waterproof building paper. It is manufactured with wet-strength kraft paper and meeting the technical requirements of BS 1521 for water-proof building papers, the prod..
Guide Price: £49.39
£59.27 inc VAT
Brand: Novia Model and Size: 1m x 250m
Delivery Time: 1 - 2 days
1m wide Novia FSPE Insulation Facing membrane is a 5x5mm scrim reinforced 18 micron aluminium foil PE laminate, achieving a Class 0 fire rating to BS 476 when used as a facing on suitable insulation substrates. Its 18 micron aluminium foil coating can offer enhanced U values within roof and wall con..
Novia Floorguard General Purpose Temporary Protection - 1m x 50m Roll
Guide Price
Brand: Novia Model and Size: 1m x 50m
Delivery Time: 1 - 2 days
Novia Floorguard is a basic low-cost recycled grey board suitable for all general temporary protection applications. It is water and slip-resistant and can be quickly and easily cut to fit any awkward shapes found on site.CHARACTERISTICS500 microns thick,Water resistant,Slip resistant.APPLICATIONFor..
Guide Price: £28.69
£34.43 inc VAT
Novia Reflex Reflective Roof and Wall Breather 1.5m x 50m Roll
Guide Price
Brand: Novia Model and Size: 1.5m x 50m
Delivery Time: 1 - 2 days
Novia Reflex Reflective Roof and Wall Breather is a strong, lightweight, high quality low cost reflective breather membrane for all pitched cold and warm roofs and insulated wall applications. It can be installed in roofs as an ordinary breather membrane. This membrane can be installed upside down i..
Guide Price: £109.02
£130.82 inc VAT
Novia STRP Pro Vapour Control Layer 1.6m x 50m Roll Novia STRP Pro Vapour Control Layer 1.6m x 50m Roll
Guide Price
Brand: Novia Model and Size: 1.6m x 50m
Delivery Time: 1 - 2 days
Novia STRP (Super Tough Reinforced Polythene) Pro Vapour Control Layer is a premium specification reinforced and foil laminated polythene vapour control membrane for use in insulated wall, roof and floor applications. Specially suited for warm flat roofs, where very high concentrations of moisture v..
Guide Price: £168.76
£202.51 inc VAT
Novia Ultra Plus Roof and Wall Breather 1.5m x 50m Roll - 100GSM
Guide Price
Brand: Novia Model and Size: 1.5m x 50m
Delivery Time: 1 - 2 days
Novia Ultra+ Roof and Wall Breather is an entry-grade, versatile, ultra-low cost 100gsm breather membrane for use in pitched cold and warm roofs, and insulated wall applications. It has good water resistance with high breathability, The membrane is coloured light-grey on one side and white on the ot..
Guide Price: £47.09
£56.51 inc VAT
Novia VC2 Air Leakage and Vapour Control Layer 1.5m x 50m Roll
Guide Price
Brand: Novia Model and Size: 1.5m x 50m
Delivery Time: 1 - 2 days
Novia VC2 Air Leakage and Vapour Control Layer is a technologically advanced, flame resistant, reinforced and air-tight vapour check membrane for use as an air leakage barrier and vapour control layer (AVCL) in insulated wall, roof and floor applications. This membrane adds an extra level of safety ..
Guide Price: £82.46
£98.95 inc VAT
Novia VC2T Reinforced Synthetic Laminate 1.5m x 50m Roll
Guide Price
Brand: Novia Model and Size: 1.5m x 50m
Delivery Time: 1 - 2 days
Novia VC2T Reinforced Synthetic Laminate is a lightweight, easy to use flame resistant temporary protection, which replaces the old-style kraft paper.CHARACTERISTICSHigh quality low cost solution, Lightweight, yet strong and tough, HDPE scrim reinforced, Suitable for a wide range of temporary applic..
Guide Price: £82.46
£98.95 inc VAT
Novia VC8 Reflective Air Leakage and Vapour Control Layer 1.5m x 50m Roll
Guide Price
Brand: Novia Model and Size: 1.5m x 50m
Delivery Time: 1 - 2 days
Novia VC8 Reflective Air Leakage and Vapour Control Layer is a technologically advanced, air-tight vapour check membrane for use as an air leakage barrier and vapour control layer (AVCL) in insulated wall, roof and floor applications. This membrane prevents any surface condensation problems that may..
Guide Price: £80.44
£96.53 inc VAT
Brand: Pattex Model and Size: 290g
Delivery Time: In Stock 1-2 working days
Pattex One-for-All Crystal is a high-quality universal polymer adhesive and sealant, based on the Henkel's Flextec polymer technology. It is characterized by crystal transparency and is designed for all kinds of materials and surfaces. Pattex One-for-All Crystal glues and seals interior and exterior..
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