Celotex Applications starting from the roof downwards ...
Pitched Roofs
Celotex offers insulation solutions for all of the following pitched roofing applications ...
Pitched roof sarking
When used over the roof structure as insulating sarking, Celotex insulation creates a warm roof structure and eliminates thermal bridging at the rafters.
Use Celotex TB3000 and Celotex GA3000 high performance thermal insulation in pitched roof sarking applications to minimise insulation thickness and give the following benefits:
Highly efficient ‘warm roof’ insulation over rafters
Provides reliable long term energy savings for buildings
Low emissivity foil facers give improved thermal insulation with cavity air spaces.
Eliminates thermal bridging Optional single layer system
Ideal for new build or major refurbishment projects Air-tight construction method
Insulation between and over rafters 
Where headroom and rafter depth is limited, Celotex insulation may be fitted between and over the rafters. Insulation between rafters The void created by a pitched roof can be made habitable by insulating along the plane of the roof pitch with Celotex rigid PIR insulation boards.
Use Celotex TB3000 and Celotex GA3000 high performance thermal insulation in pitched roof between and over rafter applications to minimise insulation thickness and give the following benefits:
Ideal for use where headroom is limited
Provides reliable long term energy savings for buildings
Creates a warm habitable roof space
No need to insulate water pipes and tanks
Suitable for new build and major refurbishment projects
Minimised additional loading to the structure
Insulation between and under rafters 
The void created by a pitched roof can be made habitable by insulating along the plane of the roof pitch with Celotex rigid PIR insulation boards.
Use Celotex TB3000 and Celotex GA3000 high performance thermal insulation in pitched roof between and under rafter applications to minimise insulation thickness and give the following benefits:
Ideal for use with shallow rafters
Provides reliable long term energy savings for buildings
Minimised additional loading to the structure
Dimensionally stable Ideal for loft conversions/room in roof applications
Upgrade existing ceilings to current standards
Loft conversions 
Insulating a loft area will frequently require many different insulation solutions involving walls, as well as pitched and flat roof areas.
Use Celotex TB3000, Celotex GA3000, Celotex XR3000 and Celotex TD3000 high performance thermal insulation in loft conversions to minimise insulation thickness and give the following benefits:
Ideal for use where headroom is limited
Provides reliable long term energy savings for buildings
Creates a warm, habitable roof space
No need to insulate water pipes and tanks
Suitable for new build and major refurbishment projects
Minimised additional loading to the structure
Flat Roofs
Celotex offers solutions for all flat roofing applications as listed below.
Flat roof insulating deck application
Introduction Celotex is the brand leading manufacturer of PIR insulation boards, with its range encompassing the thinnest and thickest boards available to the construction industry today.
Use Celotex TD3000 to combine high performance thermal insulation with 5.5mm WBP ply for use in flat roof deck applications to minimise insulation thickness and give the following benefits:
Three-in-one product to provide deck, vapour control layer (VCL) and insulation
Provides reliable long term energy savings for buildings
Ideal for use in occasionally trafficked applications
Warm roof construction due to over joist installation
Rapidly installed and weatherproofed
Accepts a wide variety of weathering systems
Warm flat roofs: 
Built-up flat roofing applications Single-ply membrane flat roofing applications Flat roof insulating deck
Use Celotex TD3000, Celotex GA3000 or Celotex XR3000 in ventilated, lead covered, warm roof applications to minimise insulation thickness and give the following benefits:
Provides reliable long term energy savings for buildings Ideal for use in occasionally trafficked applications
Warm roof construction due to over joist installation
Rapidly installed and weatherproofed Celotex TD3000 provides deck, vapour control layer and insulation as a three-in-one product
Celotex XR3000 provides the thickest insulation available in the market allowing even lower U-values to be achieved
Cold flat roofs: 
Insulation between joists Insulation between and under joists
Use a combination of Celotex TB3000, Celotex GA3000 and XR3000 high performance thermal insulation in flat roof between and under joist applications to minimise insulation thickness and give the following benefits:
A perfect solution to upgrade older buildings
Provides reliable long term energy savings for buildings
No need to remove existing weatherproofing covering
Ventilated cold roof construction
The ideal renovation/conversion solution
Easy to minimise any loss of internal headroom
Between joists
Use Celotex GA3000 or Celotex XR3000 high performance thermal insulation in flat roof between joists applications to minimise insulation thickness and give the following benefits:
Optional single-layer insulation reduces cutting
Provides reliable long term energy savings for buildings
Easy installation to use in existing roofs with no loss of internal headroom
No need to remove existing weatherproofing covering
Ideal for renovation/conversion projects
Ventilated cold roof construction
Walls
Celotex offers wall insulation solutions for all wall applications, as listed below.
Masonry cavity wall insulation 
A cavity provides an effective barrier to rain penetration and also adds to the thermal resistance of the wall.
Use Celotex CW3000 high performance thermal insulation in partial fill cavity wall applications to minimise insulation thickness and give the following benefits:
Easy to fit between wall ties using cavity tie clips for retention
Provides reliable long term energy savings for buildings
Low emissivity foil facers give improved thermal insulation with cavity air spaces
Excellent dimensional stability
Conveniently sized boards for installation between cavity wall ties
Internal and external solid masonry wall insulation
Many older properties are constructed with solid masonry walls which provide poor levels of thermal insulation.
Solid masonry walls (Internal)
Use Celotex TB3000 and Celotex GA3000 high performance thermal insulation in internal solid masonry wall applications to minimise insulation thickness and give the following benefits:
Reduces heat bridges formed by mortar joints
Ideal where no wall cavity exists
Provides reliable long term energy savings for buildings Low emissivity foil facers give improved thermal insulation with cavity air spaces
Provides a vapour control layer (VCL) when board joints are taped
Particularly suited for refurbishment projects
Solid masonry walls (External)
Use Celotex TB3000 and Celotex GA3000 high performance thermal insulation in external solid masonry wall applications to minimise insulation thickness and give the following benefits:
Reduces heat bridges formed by mortar joints
Ideal where no wall cavity exists
Provides reliable long term energy savings for buildings
Particularly suited to refurbishment projects
Timber frame wall lining
Celotex offers two solutions for single timber frame wall lining applications.
Timber frame wall sheathing 
It is now widely recognised that, in highly insulated framed structures, the thermal bridging effect of the timber frame itself becomes significant.
The first utilises the low lambda values of Celotex GA3000 and Celotex XR3000 between the studs, followed by an internal lining of Celotex TB3000 over the studs. This solution provides for the thinnest build-up with the better thermal insulation.
Use Celotex TB3000 and Celotex GA3000 high performance thermal insulation in timber frame wall applications to minimise insulation thickness and give the following benefits:
Offers the thinnest solution available
Provides reliable long term energy savings for buildings
Low emissivity foil facers give improved thermal insulation with cavity air spaces
Reduces thermal bridges through studs and rails, when used in a two-layer system
Provides cavity for services
The second option is to use mineral wool batts fitted between the studs, followed by an internal lining of Celotex TB3000 over the studs.
This solution gives a thicker build-up but offers improved acoustic insulation.
Steel stud framed wall insulation 
Historically, the use of steel framed walls has been found mostly in the construction of commercial buildings.
Use Celotex TB3000 or Celotex GA3000 high performance thermal insulation in steel stud framed wall applications to minimise insulation thickness and give the following benefits:
Ideal for lightweight, steel framed commercial and industrial buildings
Provides reliable long term energy savings for buildings
Low emissivity foil facer gives improved thermal insulation with cavity air spaces
Rapid , accurate construction on site
Facilitates off-site fabrication of framed panels
Warm frame construction eliminates thermal bridging through studs
Thin overall construction depth
Floors
Celotex offers floor insulation solutions for all flooring applications, as listed below:
Concrete floor over slab insulation
Celotex insulation can be laid over a standard floor slab and covered with a screed or tongue and groove floorboards.
Concrete slab floors Use Celotex TB3000, Celotex GA3000 and Celotex XR3000 high performance thermal insulation in concrete slab floor applications to minimise insulation thickness and give the following benefits:
Conveniently sized boards for handling indoors
Easy to cut boards to fit in most spaces
Provides reliable long term energy savings for buildings
Excellent dimensional stability
No thermal bridging at floor edges
Tightly butted joints for insulation continuity
Beam & block floor insulation 
Beam and block floors can be insulated simply by laying Celotex insulation boards over the floor before applying a screed or tongue and groove board finish. Using Celotex allows higher standards of insulation to be achieved without reducing floor to ceiling dimensions.
Use Celotex TB3000, Celotex GA3000 and Celotex XR3000 high performance thermal insulation in beam and block floors to minimise insulation thickness and give the following benefits:
Conveniently sized boards for handling indoors
Easy to cut boards to fit in most spaces
Provides reliable long term energy savings for buildings
Excellent dimensional stability
Optimised continuity with wall insulation
Tightly butted joints for insulation continuity
Suspended timber floor insulation
Fixing floppy quilt insulation between floor joists can be difficult. The job is made easy using Celotex insulation cut to fit between joists, held in place by Celotex insulation clips.
Use Celotex GA3000 and Celotex XR3000 high performance thermal insulation in suspended timber floors to minimise insulation thickness and give the following benefits:
Insulation quick and easy to install between joists in one layer
Boards permanently retained by patented Celotex insulation clip
Minimise air leakage by friction fitting the insulation
Provides reliable long term energy savings for buildings
Low emissivity foil facers to give improved thermal insulation with air spaces
Minimal load added to the structure due to incredibly light-weight boards
Floor insulation with underfloor heating
Underfloor heating can be an extremely efficient and comfortable form of domestic heating leaving wall surfaces free for furniture. Flexible heating pipes can be clipped directly to Celotex boards before being embedded in the covering screed.
Use Celotex FF3000 and Celotex TB3000 high performance thermal insulation in underfloor heating applications to minimise insulation thickness and give the following benefits:
Minimal downward heat loss into the structure
Easy to cut boards to fit in most spaces
Pipe retaining clips may be inserted directly into the Celotex insulation
Provides reliable long term energy savings for building structures
Excellent dimensional stability
Conveniently sized boards for handling indoors
Conversions
Loft conversions
Use Celotex TB3000, Celotex GA3000, Celotex XR3000 and Celotex TD3000 high performance thermal insulation in loft conversions to minimise insulation thickness and give the following benefits:
Ideal for use where headroom is limited
Provides reliable long term energy savings for buildings
Creates a warm, habitable roof space
No need to insulate water pipes and tanks
Suitable for new build and major refurbishment projects
Minimised additional loading to the structure
Garage conversions
Use Celotex TB3000, Celotex GA3000, Celotex XR3000 and Celotex TD3000 high performance thermal insulation in garage conversions to minimise insulation thickness and give the following benefits:
Easy to cut boards to fit most spaces
Provides reliable long term energy savings for buildings
Excellent dimensional stability Reduces heat bridges formed by mortar joints
Suitable for new build and major refurbishment projects
Minimised additional loading to the structure.
Manufacturer's details
Celotex Limited,
Lady Lane Industrial Estate,
Hadleigh,
Ipswich,
Suffolk,
IP7 6BA
Celotex Technical Advisory Service
While just-insulation provides the very best products at the
very best prices ...
For the very best advise we recommend you contact
the Celotex Technical Advisory Service.
Tel: 0901 996 0100 (30p per minute) Fax: 01473 820 889
Email: technical@celotex.co.uk
Page updated November 10, 2008
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Celotex PIR Insulation Board Applications
insulation solutions for roofs, walls and floors
Celotex PIR Boards
Celotex PIR Boards are ideal solutions for insulating warm and cold roofs; flat roofs; between, over and under rafters; loft conversions; masonry cavity walls; internal and external solid masonry walls, timber and steel stud framed wall insulation, over floor slabs, beam & block floors, suspended timber floors, and very much more.
Insulation boards that are highly effective, easy to install, and great value