Buying roofing materials online can make it easier to compare products, find specialty options, and arrange delivery without visiting multiple stores. But roofing orders involve more than choosing shingles: measurements, underlayment, flashing, local building requirements, freight access, and return policies all affect the final cost. A careful plan helps homeowners and contractors compare online roofing suppliers, order compatible materials, and avoid shortages or costly mistakes.
What to Consider Before Buying Roofing Materials Online
Roofing is a system, not a single product. An order may include the visible roof covering along with underlayment, starter strips, ridge caps, flashing, fasteners, ventilation components, and accessories. Some products must be compatible with one another or installed according to the manufacturer’s instructions to preserve warranty coverage.
Before shopping, determine whether the project is a repair, a full replacement, or new construction. For a repair, matching the existing product, profile, color, and exposure may be difficult. Manufacturers change product lines, and colors can vary between production batches. For a replacement, the buyer has more flexibility but must assess the roof deck, slope, drainage, ventilation, and local code requirements.
Roof replacement can involve fall hazards and concealed damage, including rotted decking. Homeowners who are not experienced with roof work should get qualified professional advice before ordering materials or starting installation. A roofer can help verify measurements, product compatibility, and the scope of work.
Compare Common Roofing Materials
The best roofing material depends on the building, climate, roof design, budget, and local rules. Online listings should be checked against product documentation, not just photographs or headline prices.
| Material | Typical strengths | Important considerations |
|---|---|---|
| Asphalt shingles | Widely available, many colors and styles, familiar installation methods | Confirm the shingle type, roof-slope requirements, wind ratings, and included accessory products |
| Metal roofing | Available in panels and shingles; product-specific durability and performance | Panel profile, substrate, coating, fasteners, trim, and installation details must match |
| Clay or concrete tile | Distinctive appearance and substantial material options | Weight and roof structure require careful assessment; handling and freight can be significant |
| Wood shingles or shakes | Natural appearance | Fire, moisture, maintenance, and local-code requirements vary by location and product |
| Slate or synthetic slate | Traditional appearance or slate-inspired alternatives | Weight, attachment methods, installer experience, and product-specific specifications matter |
| Roofing membranes | Common on low-slope and commercial applications | System design, seam details, insulation, drainage, and approved accessories are critical |
These are broad comparisons, not guarantees of lifespan or performance. Actual results depend on the product, installation, climate exposure, roof design, and maintenance. Look for published technical data and installation instructions from the manufacturer.
Measure the Roof and Estimate Quantities
Roofing area is usually expressed in square feet or roofing squares. One roofing square covers 100 square feet. However, the roof surface is larger than the home’s footprint because of its pitch, eaves, and other design features. Valleys, dormers, hips, and waste also affect the amount required.
A roof plan or professional measurement is more reliable than estimating from a house’s interior or ground-level footprint. Satellite-based estimates can be useful for initial budgeting, but their accuracy may vary. For a complex roof, an on-site measurement by a roofing professional is often the safer basis for ordering.
Waste allowances are not identical for every roof. They depend on roof shape, material, installation pattern, and the number of cuts. Ask the supplier or installer how the estimate was calculated rather than adding an arbitrary percentage. Ordering too little can cause delays or color mismatches; ordering too much can leave the buyer responsible for return freight or unusable leftovers.
Check the unit of sale carefully. Shingles may be priced per bundle, while metal panels may be priced per panel or linear foot. Underlayment can be sold by roll, and accessories may be sold individually or in packages. Compare the quantity required to cover the project, not just the price shown for one unit.
Build a Complete Roofing Materials List
A complete list helps prevent a low advertised price from hiding missing components. The exact bill of materials varies by roofing system and roof design. Manufacturer installation instructions and the project specification should guide the final order.
- Roof covering: shingles, panels, tile, slate, or membrane specified for the project.
- Underlayment: the product required by the roofing system, roof pitch, and applicable code.
- Water protection: products such as self-adhered membrane at locations where required by code or the manufacturer.
- Edge and transition components: drip edge, valley materials, flashing, and wall or chimney details as applicable.
- Roof accessories: starter strips, hip and ridge products, ventilation components, and compatible sealants.
- Fasteners: the correct type, length, material, and quantity for the roof covering and substrate.
Not every roof needs every item on this list, and product names can differ by manufacturer. For example, some shingle systems use matching ridge-cap products, while some metal systems require specific closures and trim. Confirm compatibility before checkout.
Compare Online Roofing Suppliers
When comparing places to buy roofing materials online, evaluate the supplier as well as the product. A clear listing should identify the manufacturer, product name, dimensions or coverage, color, material, relevant ratings, and installation documentation. If those details are missing, request them before paying.
Check whether the seller is an authorized dealer when that status matters to the manufacturer’s warranty or support. Review the supplier’s contact information, shipping terms, damage-claim process, return policy, and business history. Independent reviews can offer context, but they should not replace reading the written terms.
Ask whether the online price includes tax, freight, liftgate service, residential delivery, or other charges. Roofing materials are bulky and heavy, so shipping may substantially change the total. Compare the delivered cost of the complete order rather than the product price alone.
Color samples can reduce uncertainty, but a small sample may not represent a full roof in different lighting. Ask about sample availability, batch consistency, and the process for confirming the final color. For a large project, verify the color and product code on the order confirmation before shipment.
Understand Freight Delivery and Order Inspection
Many roofing orders arrive on a pallet by freight truck, rather than in a parcel delivery van. The supplier may need a delivery address with access for a large vehicle. A residential delivery may require a liftgate or curbside drop-off, and the carrier may not carry materials to the roof or into a garage.
Before placing an order, ask about the delivery window, unloading method, site access, and whether someone must be present. Confirm where the carrier can safely leave the pallet. Driveways, low wires, narrow streets, steep slopes, and soft ground can create access problems.
Inspect the shipment promptly and follow the carrier’s and seller’s instructions for documenting damage or shortages. Photograph damaged packaging and products, note concerns on delivery paperwork when possible, and contact the supplier within the stated claim period. Keep packaging and order records until the issue is resolved.
For time-sensitive projects, coordinate delivery with the installer and weather conditions. Materials left exposed to rain, high winds, or theft may be damaged or create hazards. Do not assume that an estimated shipping date is a guaranteed arrival date.
Check Building Codes, Permits, and Product Ratings
Building requirements vary by jurisdiction. Local rules may address roof covering, underlayment, wind resistance, fire classification, ice barriers, ventilation, and installation details. Requirements can also depend on climate, building type, roof slope, and whether the project is a repair or full replacement.
Before ordering, contact the local building department or consult a licensed roofing professional about permits and applicable code provisions. The International Code Council publishes model codes, but the locally adopted code and amendments govern the project. A product’s advertised rating does not automatically mean it satisfies every local requirement.
Where relevant, verify documentation for wind, fire, impact, or other performance claims. Look for the precise product and assembly information, not a broad claim that a brand or material is “storm proof.” Installation details, deck attachment, and system components can affect tested performance.
Review Warranties and Returns
Roofing warranties can differ considerably. A product warranty generally covers specified manufacturing defects subject to its terms; it does not necessarily cover poor installation, inadequate ventilation, improper maintenance, or damage from severe weather. A contractor’s workmanship warranty is separate from the manufacturer’s product warranty.
Read the warranty document for coverage limits, exclusions, required installation methods, registration deadlines, and remedies. Confirm that the exact product and accessories qualify for any advertised system warranty. Keep receipts, product labels, order confirmations, and installation records.
Returns are especially important for custom, special-order, or color-specific products. Some suppliers charge restocking fees, exclude opened packages, or require the buyer to pay return freight. Confirm the policy in writing before ordering extra material or selecting a non-stock color.
Common Mistakes to Avoid
- Shopping by price per bundle: Compare the cost for the full roof system and delivered quantity.
- Estimating from house size: Roof pitch and geometry change the actual surface area.
- Mixing incompatible components: Follow the product manufacturer’s system guidance.
- Ignoring delivery logistics: Verify truck access, unloading, and site readiness.
- Assuming an online estimate is exact: Confirm measurements before a large or special-order purchase.
- Overlooking local requirements: Check permits and code requirements before selecting a product.
- Skipping shipment inspection: Report damage or missing items within the supplier’s required timeframe.
- Relying on a warranty headline: Read the actual terms and confirm installation requirements.
A Simple Checklist for Buying Roofing Materials Online
- Define the project scope and have the roof measured accurately.
- Confirm the roof covering, accessories, and installation details with the manufacturer or installer.
- Check local permit and code requirements before finalizing product selection.
- Compare complete delivered quotes, including freight, taxes, and unloading charges.
- Review seller credentials, product documentation, warranty terms, and return rules.
- Confirm color, product code, quantities, delivery address, and access arrangements.
- Inspect the order on arrival and retain records for claims and warranty support.
Buying roofing materials online can be convenient when product research and logistics are handled carefully. Accurate measurements, a complete materials list, code verification, and a clear delivery plan make it easier to compare suppliers on the factors that matter: product suitability, total cost, documentation, and dependable service.
Sources and Further Information
- ENERGY STAR: Roof Products for information about qualified reflective roof products and energy considerations.
- International Code Council: I-Codes for information about model building codes; local adoption and amendments should be confirmed with the jurisdiction.
- FEMA Building Science for building performance and hazard-resilient construction resources.
- Federal Trade Commission: A Businessperson’s Guide to Federal Warranty Law for general information about written warranties.