| UNIT | SPECIFICATION |
|---|---|
| CONSTRUCTION: | Manufactured from a recyclable blend of limestone and polypropylene. |
| SIZE (SLATE): | 17.5” x 12” (445mm x 305mm) (including horizontal spacers which are 5mm on each side) |
| WEIGHT (SLATE): | 0.7 kg |
| THICKNESS (SLATE): | 0.20” (5mm) |
| SIZE (RIDGE CAP): | 5.9” x 17.5” (150mm x 445mm) |
| WEIGHT (RIDGE CAP): | 0.7 kg |
| MINIMUM PITCH: | 12° |
| MAXIMUM PITCH: | 70° |
| SLATE EXPOSURE (SET WITH GAUGE ON EACH SLATE): | 6” at 12° to 25° 6.5” at 25° to 27.5° 7” at 27.5° to 30° 7.5” above 30° Please also see coverage/gauge table on our Measuring Guide or the Fixing Guide |
| COVERAGE (SLATE): | 22 slates/sq. metre at 12° to 25° 20 slates/sq. metre at 25° to 27.5° 19 slates/sq. metre at 27.5° to 30° 18 slates/sq. metre above 30° Please also see coverage/gauge table on our Measuring Guide or the Fixing Guide |
| COVERAGE (RIDGE CAP): | 6 per linear metre (always set at a 6" exposure from front of cap to beginning of overlaid cap) |
| COVERAGE (HIP): | 6 per linear metre (always set at a 6" exposure from front of cap to beginning of overlaid cap) |
| STARTER/EAVES COURSE: | A Starter or Eaves course MUST be fitted (as per standard slating principals). This consists of 3.5 cut ¾ standard TapcoSlates per linear metre of eaves. Please see Page 7 of our Fixing Guide for further details. |
| PACKAGING: | Pallet: 1600 Slates (1.04 tonnes) Bundle: 25 slates (16.25kg) |
| BATTEN SIZE: | 2” (50mm) by 1” (25mm) treated battens (minimum) |
| FIXING: | Large 10mm diameter head, galvanised 1.2” (30mm) by 0.1” (2.5mm) steel nails or 1.2” (30mm) by 0.14” (3.5mm) outdoor Phillips bugle screws (using hammer/screwdriver or nail/screw-gun). Longer 2” (50mm) nail or outdoor Phillips bugle screw required for fixing ridges and hips. Corrosion resistant fasteners are always recommended, especially in coastal areas. In Scotland we recommend the use of Stainless Steel nails for fixing. For nail gun use, a minimum of 7.1mm diameter nail heads should be used, we ideally recommend Bostitch CR3DGAL Galvanised Roofing Coil Nails (32mm) with a large 10mm head. RidgeMaster Plus/HipMaster is fixed underneath standard Ridge and Hip Caps and so longer 75mm/80mm nails or screws are needed to penetrate through the materials and into the wooden roof structure underneath to secure. |
| ROOFING MEMBRANE: | Recommended use of impermeable (non-breathable) Type HR roofing membrane. (see our Fixing Guide for more details). |
| VENTILATION: | Ventilation in accordance with BS 5250 should be adhered to. TapcoSlate is categorised as an "insufficiently air open" product by BS 5250 standards and provision should be made to ventilate the roof space efficiently. See our Fixing Guide for more details. Please note that our recommendations here and in our Fixing Guide are purely manufacturers guidance and should never supersede local building authority recommendations. Please consult your local building officer before commencing work. |
| ADHESIVE: | An adhesive for Polypropylene compounds is needed, PERMABOND® TA4610 or TA4620 is recommended. |
| SEALANT: | A Butyl-based sealant should always be used with TapcoSlate Classic. Note that the use of Silicon sealants may invalidate your warranty. |
| CUTTING: | Fine-toothed handsaw, jigsaw, circular saw, or sharp utility blade. |
| STORAGE/TEMPERATURE: | TapcoSlates should not be stored on roof decks in such a manner as to over-stress and/or damage the deck and supporting structure. Cold Weather Installation: TapcoSlates should be stored in original packaging in a storage facility where the temperature meets or exceeds 7°C. Use protective coverage over all pallets while being temporarily stored on-site. TapcoSlates must be conditioned at a temperature no lower than 7°C for twenty-four (24) hours prior to use. TapcoSlate may be installed at temperatures as low as 0°C but must be hand fastened, the use of a pneumatic gun below 7°C will result in cracking and webbing in the fastened area. Be sure to follow the manufacturer’s installation requirements for all underlay or membrane and any other applications. Comply with any and all local building regulations. Note of Caution: The slates can be slippery under certain conditions and job site safety procedures should be enforced. |
| ACCELERATED ULTRA VIOLET EXPOSURE AND STRESS TESTING: | Joint testing to ASTM G 155-05a and ASTM D638-03 (2,000 hours of super-intense xenon arc light UV simulation along with tensile properties testing at the same time to see if UV affected the material) found no evidence of cracking, crazing, pitting, chalking, discolouration or any other material changes during the test phase. |
| FREEZE-THAW CYCLE: | No signs of damage or cracking after 300 cycles. |
| WATER ABSORPTION: | No appreciable weight gain. |
| WATER PERMEATION: | Slate shown to be impermeable. |
| TEMPERATURE CYCLING: | No signs of cracking, curling, deformation, or visible expansion. |
| BATTEN QUANTITIES: | Guidelines for batten quantities per square metre based on published batten spacing (see our Fixing Guide) 14 to 24 degree roof pitch = 8 metres of 50mm x 25mm battens per m² 25 to 27.4 degree roof pitch = 7 metres of 50mm x 25mm battens per m² 27.5 to 29 degree roof pitch = 6.5 metres of 50mm x 25mm battens per m² 30 to 90 degree roof pitch = 6 metres of 50mm x 25mm battens per m² Please note that an extra roof-length batten should be added to your calculations for the eaves course double-batten, as per our Fixing Guide. |
| THERMAL TRANSMISSION: | Thermal Conductivity of a TapcoSlate Classic Tile (K Value): 0.780 Btu-in/hr-ft²-°F 0.112 W/(m*K) Thermal Resistance of a TapcoSlate Classic Tile (R Value): 1.250 Hr-ft²-°F/Btu 0.220 K*m²/W U Value of a TapcoSlate Classic Tile: 0.8 Hr-ft²-°F/Btu 4.55 K*m²/W |
| WARRANTY: | 40-years. Please see our Warranty Document for further information. |
| EXPECTED LIFESPAN: | Because TapcoSlate does not delaminate or deteriorate in the same way a natural product does, its life expectancy would be in excess of 75 years. |
RATINGS & CERTIFICATION
| TEST BODY | CERTIFICATION |
|---|---|
| BBA APPROVAL INSPECTION TESTING CERTIFICATION CERTIFICATE No 08/4603  | BBA certification is recognised by architects, building planners, Local Authorities, contractors and inspectors as the leading impartial product approval and certification body in the market. BBA certificates are awarded to products in the construction sector after having passed a series of comprehensive and rigorous assessments which are tailored to the individual needs of the manufacturer and in line with building specification guidelines. Please view our BBA Certificate for further details. |
| EUROPEAN TECHNICAL ASSESSMENT ETA-20/0913 of 2020/11/30  | The European Technical Assessment (ETA) is an alternative for construction products not covered by a harmonised standard. It is a document providing information on their performance assessment. The procedure is established in the Construction Products Regulation and offers a way for manufacturers to draw up the Declaration of Performance and affix the CE marking. It contributes to the free movement of construction products and the creation of a strong Single Market. Please view our ETA Certificate or our Declaration of Performance documents for further information. |
CE: | The CE marking is a visible symbol showing that the manufacturer has taken all necessary measures to ensure that the product complies with the applicable safety legislation. It plays a crucial part in the New Legislative Framework for the EU internal market for goods which entered into force at the beginning of 2010. The New Legislative Framework provides for the appropriate control of testing laboratories and certification bodies, and more importantly sets out a Union policy on surveillance of products on the market and of effective controls of products from third countries. Please view our EU Declaration of Performance document for further details. |
| UK TECHNICAL ASSESSMENT UKTA-0836-22/6064 of 21/04/2022  | A UKTA is a United Kingdom Technical Assessment which is the means for non-harmonised products to achieve UKCA Marking. The UKTA is the UK equivalent of ETA’s (European Technical Assessments) for non-harmonised products to achieve CE Marking in Europe. Please view our UKTA Certificate for further details. |
UKCA: | UK Conformity Assessed (UKCA) marking is a conformity mark that indicates conformity with the applicable requirements for products sold within Great Britain. The UKCA marking became part of UK law at the end of the "Brexit" transition period, on 31 December 2020, with the coming into force of The Product Safety and Metrology etc. (Amendment etc.) (EU Exit) Regulations 2019. Please view our UKCA Declaration of Conformity document for further details. |
| FIRE RATING: | Achieves EXT.S.AA on a fully-boarded roof and EXT.S.AC on a felt & batten roof in accordance with BS476-3, and achieves a BROOF(t4) designation in accordance with EN 13501-5 Please view our Fire Safety Part 1 for Fully-boarded Roof Structures or our Fire Safety Part 2 for Felt & Batten Roof Structures documents for further information. |
| HAIL RATING: | Achieves the highest Class 4 UL 2218 Impact Test rating during testing performed with various sized heavy steel balls simulating 90-mph hailstones of varying sizes dropped from a 4 metre height. |
| WIND UPLIFT: | Achieves a Miami Dade TAS-110 rating of withstanding up to 110mph winds during testing with no slates becoming detached or broken during 5 test cycles each lasting 30 minutes in duration at maximum velocity. Please view our Miami Dade Testing Report for further details. |
| WIND-DRIVEN RAIN: | Achieves EN 15601 for wind-driven rain tested to a minimum 12 degree pitch. The BRE report states that TapcoSlate Classic "performed much stronger than all equivalent materials tested at a 14 degree pitch." Note that the higher the pitch of the product, the better resistance it has to wind-driven rain. Please view our Wind-driven Rain Testing to 12° or our Wind-driven Rain Testing to 14° documents for further information. |
