Confirming the Final Design and Layout
Before any material is ordered, the final design and layout for the siding and cladding must be approved by all stakeholders. This includes architectural drawings, elevations, and any specific details for corners, openings, and transitions. Review these documents with your contractor to ensure there are no ambiguities regarding the intended aesthetic and functional requirements.
Pay particular attention to the orientation of the cladding (horizontal, vertical, diagonal), the chosen profile (e.g., shiplap, tongue-and-groove, board-and-batten), and how these elements integrate with other facade materials or architectural features. Any changes after this point can lead to costly material reorders or project delays.
Verifying Dimensions and Takeoffs with Your Contractor
Accurate measurements are paramount for ordering the correct quantity of siding and cladding. While initial estimates might have been used for budgeting, the contractor should provide precise field measurements and a detailed material takeoff. This takeoff should account for waste factors, cut plans, and specific lengths required to minimize seams and optimize material use.
Discuss with your contractor how they plan to manage cuts around windows, doors, and other penetrations. For example, if you are using a product like thermally modified Ayous cladding, understanding the exact lengths needed for each section can help in ordering standard board lengths efficiently. A common assumption is that offcuts from one section can always be used elsewhere, but this depends on the project's layout and the specific profile being installed. For a complex facade, a detailed cut list can be invaluable.
Consider a hypothetical wall section measuring 10 feet high by 20 feet wide. If using 5.5-inch wide (nominal) thermally modified Ayous shiplap boards, laid horizontally, you would need approximately 22 boards (10 feet / (5.5 inches / 12 inches/foot) = 21.8 boards). For a 20-foot width, and assuming standard board lengths of 8, 10, or 12 feet, your contractor will need to plan for either two 10-foot boards per course or one 12-foot and one 8-foot board, with careful consideration for staggering joints for a professional finish. This calculation doesn't include waste for cuts or trim.
Specifying Product Details and Profiles
The specific product chosen impacts not only the appearance but also the installation method and required accessories. Confirm the exact species or material (e.g., Scandinavian Thermally Modified Wood, Maximo Accoya, Brazilian Hardwood, or Norx composite cladding), the desired profile, and any specified finish or treatment. Lumber Plus offers a range of profiles and materials that can be milled in-house.
For example, if selecting Norx composite cladding, ensure the specific color and profile (e.g., London Black or Navona Black) are explicitly noted. Different profiles, such as shiplap or tongue-and-groove, have distinct installation requirements and may require specific fasteners or clips. Review product data sheets with your contractor to confirm compatibility with the proposed installation system, especially for rainscreen assemblies where specific furring strip dimensions and ventilation gaps are crucial.
Understanding Fastener and Accessory Requirements
The type of fasteners and accessories needed for siding and cladding installation is often overlooked but critical for durability and aesthetic. Discuss with your contractor whether face fastening or hidden fastening systems will be used, and confirm the specified fastener material (e.g., stainless steel for corrosion resistance), length, and quantity.
Beyond fasteners, consider other necessary components such as starter strips, trim pieces, flashing, insect screens for rainscreen systems, and any specialized clips or spacers. For example, a rainscreen application using thermally modified wood may require specific furring strips and a ventilation mat to ensure proper airflow and drainage. These items should be itemized in the material list to avoid last-minute sourcing issues.
Planning for Delivery, Storage, and Site Logistics
Before placing the order, establish a clear plan for material delivery, on-site storage, and access. Siding and cladding materials, especially natural wood products like Ipe or Cumaru, can be sensitive to moisture and UV exposure. Confirm with your contractor where the materials will be stored on site, how they will be protected from weather and damage, and what access is required for delivery trucks.
Consider the lead times for custom-milled profiles or specialized materials. Coordinate delivery dates to align with the project schedule, ensuring materials are available when needed but not stored on site for excessive periods, which can increase the risk of damage or theft. Discuss who is responsible for inspecting the delivery for accuracy and damage upon arrival.
Establishing a Change Order Process
Even with meticulous planning, changes can occur during a project. Establish a clear process for handling change orders for materials. This includes who has the authority to approve changes, how changes will be documented, and what impact they will have on cost and schedule. This proactive approach helps manage expectations and avoids disputes if unforeseen circumstances require adjustments to the material order.
A formal change order process ensures that any modifications to the original plan are mutually agreed upon and recorded, providing transparency and accountability for all parties involved.
Before you order
- Final design and layout approved by all parties?
- Contractor-verified field measurements and detailed material takeoff complete?
- Exact product name, species/material, and profile (e.g., shiplap, tongue-and-groove) confirmed?
- Specific finish or treatment (if applicable) specified?
- Fastener type, material, length, and quantity determined?
- All necessary accessories (trim, flashing, insect screens, clips) itemized?
- Delivery logistics (site access, storage location, protection) planned?
- Lead times for materials confirmed and aligned with project schedule?
- Process for material change orders established and understood by all?
- Responsibilities for material inspection upon delivery assigned?
Confirm installation details, approved uses and warranty terms in the current instructions for the exact product and profile. Your installer should verify the substrate, structure and applicable project requirements.
Questions to help you decide
Why is a detailed material takeoff from my contractor so important?
A detailed material takeoff from your contractor is crucial because it translates the design into precise quantities based on actual site measurements and installation methods. This accounts for specific cuts around features, waste factors, and optimal board lengths, which differs from initial estimates. It helps prevent over-ordering or under-ordering, saving time and money, and ensures you have all the necessary components for a smooth installation.
What should I look for when inspecting my siding and cladding delivery?
Upon delivery, inspect the materials for accuracy (correct product, profile, quantity), visible damage (cracks, warps, dents), and consistent quality. Check that bundles are intact and protected. Document any discrepancies or damage immediately with photos and notify both your contractor and supplier. This ensures any issues can be addressed before installation begins, potentially preventing delays or disputes.
How do different siding profiles affect material ordering and installation?
Different siding profiles, such as shiplap, tongue-and-groove, or board-and-batten, affect material ordering and installation in several ways. Shiplap and tongue-and-groove often have specific reveal widths that impact coverage per board, requiring careful calculation. Board-and-batten requires ordering both wider boards (for the battens) and narrower strips (for the battens). Each profile also dictates specific fastening methods, whether face-nailed or hidden, and how joints are managed. Understanding these differences with your contractor is key to accurate ordering and a successful installation.
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