Fascia Installation Details
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Technical Bulletin Fascia Installation Details K16 Fascia & 9mm Vented Soffit Eaves Protector Stainless Steel Polytop Fixings 2 x 65mm @ 600mm Centres Stainless Steel Polytop Fixings 1 x 40mm @ 600mm Centres K22 Fascia & 9mm Vented Soffit Eaves Protector Stainless Steel Polytop Fixings 2 x 65mm @ 600mm Centres This section of the guide is intended to provide you with a brief overview of the popular products in Kestrel’s Roofline range, where they can be used and the main criteria for installation. Pre-Installation Considerations Preparation: • All access and works to comply with current and relevant Health & Safety and Construction Design Management Regulation recommendations • Clear work area in-line with best practice before starting work, ensuring safe scaffolding access is available • Remove first row of roof tiles where necessary • Remove all existing fascia / soffit materials • Replace any un-sound / rotten timber or felt and treat rafter ends with preservative • Maintain air path for roof ventilation Installation considerations 803 Vented Soffit 10mm Air Gap KB16 Fascia & 9mn Vented Soffit Installation considerations are intended to provide you with need-to-know information for the core processes of product installation. They are not intended as an exhaustive installation guide. The information presented will provide you with a valuable resource when assessing how best to use our products in your selected application. Fascia Fit directly to rafter ends using polytop nails, 2 per fixing centre max 600mm centres - 65mm nails. Austenitic stainless steel (Grade A4 BS EN ISO 3506-1 : 2009). Fascia is capable of load bearing in relation to light weight gutters and the first row of roof tiles (Eaves Tiles). Expansion gaps of 5mm per board end must be allowed for during installation. Eaves Protector Cover joints and Corners to be secured using low modulus neutral cure silicone. BS5889 Type A. Stainless Steel Polytop Fixings 2 x 65mm @ 600mm Centres Gutter brackets to be secured directly into the board using stainless steel screws - 10 gauge x 25mm long (parallel thread form). 803 Vented Soffit 10mm Air gap All Kestrel fascia boards 16mm and over are capable of load bearing and may be used in new-build

Technical Bulletin Fascia Installation Details 018 Fascia & 100mm V-Joint Cladding - Vented Tongue and Groove Cladding Shiplap and Open-V cladding planks may also be used as soffit. The Open-V version is also available in a preventilated form. Vented cladding planks have a 12.5mm air gap which permit 25mm continuous ventilation to be achieved via the use of two rows of vented product. Cladding planks are secured using 30mm cladding pins. Eaves Protector Stainless Steel Polytop Fixings 2 x 65mm @ 600mm Centres • Joints for K22, K16, KB16 & 605 are available in 600mm lengths in addition to...

Technical Bulletin Fascia Installation Details Flat Roof Detail Flat Roof Installation When fitting to a flat roof area, consideration must be given to allow adequate ventilation above the insulation in order to comply with building regulations. See ventilation section for a full explanation of ventilation requirements. AIR PATH Secure to rafter ends with Polynails 2 x 65mm @ 600mm Centres 903 range 25mm vented soffit to ventilate 50mm air space Replacement Projects 605 Fascia & 9mm Vented Soffit Kestrel manufacture several designs of fascia capping boards which can be fitted over the top of...

Technical Bulletin Bargeboard Installation Details Typical Verge Details K16 - 16mm Bargeboard & Plain Soffit Fit directly to gable ladder Bargeboard K16 16mm bargeboard should be installed using 65mm Polytop nails 2 per fixing centre at maximum 600mm centres. Austenitic stainless steel (grade A4 BS EN ISO 3506-1 : 2009). 605 9mm bargeboard should be installed using 50mm Polytop nails 2 per fixing centre at maximum 600mm centres. Austenitic stainless steel (grade A4 BS EN ISO 3506-1 : 2009). Plain soffit board to verge 40mm Polytop pin Stainless Steel Polytop Fixings 2 x 65mm @ 600mm Centres...

Technical Bulletin Soffit Installation Details Soffit Kestrel 9mm soffit boards are available in non-vented versions for use as verge soffit or as eaves soffit when other forms of eaves ventilation are to be used. They are also available in ventilated form and can contribute towards providing the necessary roof space ventilation. Allow 5mm expansion gap per board end concealed by 691 soffit joint trim Stainless Steel Polytop Fixings 1 x 40mm @ 600mm Centres Soffit is secured at maximum 600mm centres to timber using 40mm Polytop pins, alternatively a wall side fix may be achieved using 692...

Technical Bulletin Roofline Range KB16 K22 K22/150

Technical BulletinRoofline Range 150mm 175mm 200mm 225mm 250mm 355mm 405mm Double Leg V-WAVE & V-CREST V-WAVE 150mm min. coverage * These products can be used as fascia boards with a minimum 12mm exterior grade plywood backing board.

Technical Bulletin Box End Installations Boxed Ends To provide a neat and weathertight area at the point where Fascia and Bargeboard meet, it is necessary to construct a box end. Non-Vented Soffit A box end piece is cut from wide Bargeboard material (nominally 405mm) to suit the roof pitch and overhang requirement. When using K605 bargeboard large box end details may be obtained by using the extra wide product of 600mm width. The soffit forming the base of the box end must match the eaves soffit and is mitred at the joint, using 691 H-section as a jointing trim. Box ends are supported using...

Technical Bulletin Roofline Ventilation Roofline Ventilation Provision of Ventilation Cold Roofs The requirement to ventilate the roof space of a building to protect the building and people who use it from the harmful effects caused by condensation is covered by ‘The Building Regulations 2000.’ Guidance on the provision of adequate ventilation is given in Approved Document C2 Resistance to Moisture (2004 edition) and detailed in BS5250: 2011 Code of practice for control of condensation in buildings. Kestrel provides a comprehensive range of products designed to comply with the requirements of...