Knauf Insulation Systems
Product Description
Overview
The flexibility offered by this system of roofing reinforces the comparatively low maintenance requirement of most pitched roofs whilst also offering many options for creating attractive and interesting exteriors.
Many designers of commercial and public buildings (especially offices and schools) use the height offered in the pitch of the roof to create light, attractive interiors with high level sloping ceilings which include light wells and roof windows. The thermal efficiency required by the Building Regulations, coupled with the desire to create interesting and attractive interiors, can make the specification of insulation for this application a complex issue.
This page and its sub-pages provide solutions for both Sloping Ceiling and Flat Ceiling applications.
Advantages
Pitched roofs can be insulated to create either warm or cold roof spaces.
Insulation placed at flat ceiling level creates a cold roof space. This is the lowest cost option for insulating a roof and uses economical readily available mineral wool quilt insulation. Very high levels of thermal insulation can be achieved because there is virtually no restriction on the thickness of insulation that can be installed.
Insulation placed in the plane of the roof pitch creates a warm roof space. This option allows the designer to omit a flat ceiling and use the space within the roof volume as extra accommodation enhancing the usable area of the property without significantly altering the building envelope.
Knauf Insulation Products
- Crown Rafter Roll 32 is a high performance roll of glass mineral wool. It is easy to cut and friction fit between irregularly spaced rafters.
- Rocksilk Pitched Roof Slab is a high density, water repellent, rock mineral wool slab specifically developed for over rafter (sarking) insulation.
- Rocksilk Rafter Slab is a flexible, semi-rigid non-combustible slab of rock mineral wool for use between rafters.
- Polyfoam Sarking Board System is a high performance, 100% ozone friendly, extruded polystyrene, rigid board insulation system. It is lightweight and consists of a 75mm ‘top
- Polyfoam Raftersqueeze is a high performance, 100% ozone friendly, extruded polystyrene, rigid board insulation. It consists of a flexible infill piece that fits between rafters, and allows for some variation in timber rafter centres.
- Polyfoam Pitched Roofboard is a high performance, 100% ozone friendly, extruded polystyrene, rigid board insulation system. It is lightweight with shiplap edge details to sit above rafters in pitched roofs.
- Polyfoam Linerboard is a laminate of Polyfoam high performance, 100% ozone friendly, extruded polystyrene, rigid board insulation and 9.5mm tapered edge plasterboard – to underdraw the interior rafter line.
- Crown Loft Roll is made from glass mineral wool and formed into unfaced rolls which are lightweight, flexible, resilient and non-combustible – for ceiling level insulation.
- Knauf Breatheline is a breathable membrane with a polypropylene non-woven coating on both sides.
- Rocksilk Flexible Slab is a multipurpose rock mineral wool slab that can be used in pitched roofs between the rafters.
Summary
Knauf Insulation supply products for a range of roof insulation systems, which provides options that comply with Building Regulations and are suitable for use in the preferred method of construction whilst providing the required level of thermal performance. A high specification vapour permeable underlay and insulated lining boards are also available for use alongside our standard insulation products
Please contact your local branch for more information on these and other roofing systems available
Technical Information
Product LiteratureCurrently Unavailable
COSHH SheetCurrently Unavailable