1. Does EcoplyTM and ShadowcladTM emit formaldehyde?
Formaldehyde occurs naturally in the environment and is emitted by processes such as combustion, decay and naturally by all timber species. Ecoply™ and Shadowclad™ meets the lowest formaldhyde emission class (E0- less than 0.5mg/litre). Actual formaldehyde emissions have been tested to be less than 0.3mg/litre.
2. How do we fix Shadowclad to Framing?
Shadowclad is fixed to framing using nails or screws. The size and type used is dependent on several factors including; if direct fixed or on cavity battens, proximity to sea spray zone, if it is a structural element and aesthetics considerations. In all cases the fasteners will be at a minimum of 150mm centres around the middle of the sheet and 300mm centres in the body of the sheet. There should also be fasteners placed at minimum of 300mm centres to horizontal nogging placed at a maximum of 800mm centres.
The publication entitled "Shadowclad Specification and Installation" should be consulted for design and installation requirements.
3. Do I have to re-treat cut edges of Ecoply & Shadowclad Panels?
Ecoply and Shadowclad treated plywood is envelope treated. Any cuts or holes made in treated plywood should always have a brush on remedial treatment such as Metalex End Seal applied to the cut edge
4. Can power driven nails be used to fix Ecoply?
Paslode power driven nails have been tested for fixing Ecoply and Shadowclad products for particular bracing and cladding applications. Refer to section 3 Structural bracing and/or the Shadowclad Specification & Installation Manual for nail specifications. Use the Paslode Impulse Compact Nailer fitted with a No Mar(k) work contact element to eliminate any contact marks on the plywood. Adjust the work contact element to the flush position and fire the nail at 90° to the work surface. Hammer any nails flush which are left proud.
5. How close to the edge of a sheet of Ecoply can I put nails?
Fixings can be placed a minimum 7 mm from the sheet edge.
6. What ground clearances are required for claddings including weatherboard and Shadowclad?
At ground level the cladding system shall finish a minimum of 100mm above a paved surface or 175mm above unpaved surfaces. The base of the cladding system shall overlap any concrete or timber floor structure by a minimum 50mm as required by NZS 3604:1999. Where cladding finishes against, or overlaps other materials (such as flashings or concrete slabs), it shall be offset horizontally by a minimum of 6mm to prevent capillary action.
7. Can you use Strap hold downs on EP bracing series brace panels in place of Gib Handibrac
No you cannot use strap hold downs on EP bracing. You must use Gib Handibrac.
8. What connections should I use for LVL?
Refer to the product technical brochures for guidance. In general, LVL products can be nailed, bolted or screwed exactly the same way as ordinary timber, although engineers can rely on higher fixing capacities. Hangers are available, designed to suit the product dimensions of hySPAN and hyJOIST, and should be ordered with special product nails. Hangers and nails can be ordered through your local building materials supplier.
9. Can LVL be used as studs too?
Yes! hyCHORD is perfect for use as high performance studs in extremely high wind-zones and tall wall applications. Refer to your engineer who can design more specific to your site requirements. hySPAN and hyJOIST have also been used for varying reasons, typically for greater insulation values due to their depth.
10. How can I measure moisture content in LVL?
Moisture meters provide a false reading due to the glue lines in LVL. Dimension of product is the most accurate method of evaluating the moisture content. Anything over 2mm greater width than specification could be at risk of heightened moisture content.
11. How long can LVL products be left outside during construction?
Exposure to weather during normal construction periods is not a cause for concern. The manufacturing method of 3mm veneers bonded with an exterior grade glueline means that less moisture tends to be absorbed compared to ordinary solid timber. Keep dry where possible. Store on site level, filleted and under cover prior to installation. Ensure the product is dried out before fixing linings.
12. What lengths of LVL can I order?
hySPAN and hyJOIST are available in lengths up to 13.2 metres in 600 mm increments. Substantial orders and those for non-standard product must be placed 6-8 weeks in advance to ensure sufficient stocks are on hand.