All Roofing Calculators

Free roof pitch calculator for Canadian builds. Convert between rise/run (X/12), angle in degrees and rafter length. Slope factor for accurate roof area takeoffs to NBC 9.26.

Calculate top-up depth, bag count and material cost for blown cellulose, blown fibreglass, batts. NBC 2020 9.36.2 R-60 climate-zone targets.

Size stick-built common rafters to NBC 2020 9.23 with snow load, count and 2026 lumber prices in CAD. SPF #2 / Doug-Fir catalogue.

Estimate 2026 Canadian roof repair cost by scope, covering, age, height, access, permits and disposal — itemised from a single shingle fix through structural sheathing replacement.

Free Canadian roof truss calculator. Size prefab trusses to NBC 2020, CSA O86 and TPIC 2014. Member lengths, count and delivered cost in CAD across ON, BC, AB, QC.

Estimate 2026 attic-insulation cost in Canadian dollars: material, labour and total installed price for blown cellulose, fibreglass, batts and Roxul. NBC 2020 9.36.2 R-60 targets.

Estimate Canadian 2026 chimney repair cost by line item: crown rebuild, tuck-pointing, brick replacement, above-roof rebuild, cap, flue liner, waterproofing, damper. To NBC 9.21 / ULC S635 / WETT certification with 2026 CAD trade rates.

Estimate metal roof panel count, trim lengths, and installed cost in CAD. Standing-seam, ribbed, corrugated, and stone-coated steel — sized to NBC Part 9 and CSA A123.21.

Compare 2026 Canadian roofing costs across asphalt, metal, cedar shake, slate and EPDM on the same job. Side-by-side installed cost in CAD, C$/sq ft, service life and cost-per-year.

Estimate 2026 Canadian eavestrough guard cost by linear foot — screen, perforated aluminum, foam, brush, reverse-curve, or stainless micromesh. CRCA and HomeStars rates adapted to freeze-thaw zones and provincial codes.

Estimate 2026 Canadian eavestrough installation pricing per linear foot by profile, material, building height, and access. Itemized labour, materials, downspouts, leaf guards in CAD.

Calculate Canadian eavestrough fall, slope and per-section drop using NBC ¼ in per 10 ft / 2 mm per metre or a custom 1:N ratio. Ice-dam-safe minimums for cold-climate provinces.

Free Canadian roof area calculator. Compute actual roof surface in square feet (or square metres) for gable, hip, shed, and L-shape roofs. NBC-aligned guidance for snow and ice and water shield.

Estimate the full installed cost of a roof replacement in Canada in 2026: asphalt shingles, standing-seam metal, cedar shake, and tile — itemized by material, labour, tear-off, disposal, and permit per NBC.

Estimate 2026 Canadian roof leak repair pricing in CAD — ice-dam damage, lifted shingles, valley membrane, vent stacks — with itemized labour, materials, and after-hours premiums by province.

Free Canadian roof shingle calculator. Compute total shingle pieces, bundles, starter strip, and ridge cap from footprint, pitch, and waste — for IKO, BP, GAF, CertainTeed, and Malarkey laminate shingles.

Free roof square footage calculator for Canadian projects. Get on-slope area in sq ft, asphalt shingle bundles, and ice & water shield rolls. NBC 9.26 compliant with snow load notes.

Estimate 2026 Canadian asphalt shingle installation cost by line item: IKO Marathon 3-tab, IKO Cambridge architectural laminate, IKO Royal Estate designer, or impact-rated Class 4. Tear-off, synthetic underlayment, ice-and-water shield, drip-edge, ridge cap, starter, deck repair, permit, disposal. 2026 CRCA, IKO, BP, Malarkey contractor rates per NBC 9.26.

Estimate 2026 Canadian natural-slate roof installation cost by line item: Welsh, Spanish, Vermont, Quebec (Glendyne), Brazilian, or synthetic slate, with tear-off, ice-and-water shield, copper nails, batten, ridge cap, open copper valley, rafter sistering, snow guards, permit, and disposal. Real 2026 CRCA contractor rates per NBC 9.26.

Calculate metal roof cost in CAD across standing-seam, corrugated, ribbed, stone-coated, aluminium, and zinc. Low/mid/high quote ranges with CRCA 2026 contractor data, NBC compliant.

2026 Canadian roof replacement cost band by shingle, metal, or membrane — region, pitch, complexity, ice-and-water shield — with insurance and finance scenarios in CAD.

Estimate 2026 Canadian cedar shake and shingle roof installation cost by line item: BC Western Red, Alaskan Yellow, or Quebec/Ontario Eastern White cedar with #1 Blue Label, #2 Red Label, or #3 Black Label grading, hand-split or taper-sawn cut, optional Class B or Class A fire-retardant treatment, tear-off, ice-and-water shield, stainless nails, Cedar Breather, batten, ridge cap, copper valley, permit, and disposal. Real 2026 CRCA contractor rates per NBC 9.26.

Estimate 2026 Canadian EPDM rubber-membrane roof cost by line item: 45/60/90-mil black or white EPDM, mechanically attached, fully adhered, ballasted or self-adhered. Real 2026 CRCA contractor rates per NBC 2020 9.26.

Estimate 2026 Canadian roof ice dam risk by climate zone, pitch, attic R-value, ventilation, eave overhang and snowfall — with tiered remediation cost in Canadian dollars to NBC 2020 Section 9.36 and CSA A123.

Estimate Canadian 2026 roof inspection cost by roof size, inspection type (visual, drone, thermal, moisture, comprehensive), pitch, material, and storey — sized to NBC 2020 and CRCA guidance for pre-purchase, post-storm, and insurance claim reports.

Estimate Canadian 2026 skylight installation cost by size, type (fixed, vented, sun tunnel), glazing and roof material. Triple-glazed cold-climate spec, NBC 9.27 framing, drywall finish and 120V wiring.

Calculate roof snow load to NBC 2020 §4.1.6 and Tbl C-2 climatic data. Returns ground snow load Ss, slope factor Cs, exposure factor Cw, accumulation factor Ca, and design roof snow load S.

Estimate Canadian 2026 solar PV roof installation cost by system size, panel type, inverter, mounting and roof material. Includes Greener Homes Grant rebate, battery storage, and 200A service panel upgrade.

Estimate Canadian 2026 green roof installation cost per square foot by system (extensive sedum, semi-intensive, intensive landscaped, blue-green) and structural retrofit scope. Aligns with CSA A123.24, City of Toronto Green Roof Bylaw, NBC 9.26 and CRCA Roofing Specs Manual.

Estimate Canadian 2026 polycarbonate patio cover, sunroom and carport roof cost (Palram Suntuf, Palruf, Sunlite, Polygal Thermoclear) by area, sheet type, tint, glazing-bar length and storey. Aligned with CSA A123.21, NBC 9.26 and provincial limited-combustible material rules.

Estimate 2026 Canadian standing seam metal roof installation cost by line item: 24-ga or 22-ga Galvalume steel, aluminum, zinc, or copper, with tear-off, ice-and-water shield, synthetic underlay, vented ridge, gable trim, valley pan, snow rail, drip edge, permit and disposal. Real 2026 CRCA contractor rates per NBC 9.26.

Estimate 2026 Canadian PVC single-ply membrane roof cost by line item: 50/60/72/80-mil membrane, standard PVC, KEE-modified Sarnafil, fleece-back or FiberTite PVC-CPA, with polyiso insulation, gypsum coverboard, drains, kitchen-exhaust grease stacks, tear-off, permit and disposal. Real 2026 CRCA and NBC 9.26 rates.

Plan a complete Canadian roof replacement in 2026: tear-off, ice and water shield, decking allowance, and full installed cost in C$ — itemized by line.

Estimate Canadian 2026 built-up roof and SBS / APP mod-bit cost by area, surfacing, drains and storey. Aligns with CSA A123.21 and CRCA Roofing Specs Manual.

Estimate 2026 Canadian corrugated metal roof installation cost by line item: 26-ga galvanized, 26-ga Galvalume, PVDF colour-coated, 24-ga heavy gauge, or corrugated polycarbonate, with tear-off, ice-and-water shield, synthetic underlayment, vented ridge, gable trim, valley flashing, capped side-lap screws, drip edge, municipal permit and disposal. Real 2026 contractor rates per CRCA and NBC 9.26.

Estimate Canadian 2026 dormer addition cost by style (shed, gable, hipped, eyebrow), size, retrofit vs new-build, storey, and access — with window, drywall finish, permit, and crane line items.

Estimate the full cost to replace a flat or low-slope roof in Canada in 2026: TPO, PVC, EPDM, modified bitumen, or BUR — with tear-off, R-30 insulation, parapet flashing, and drains itemised in CAD.

Estimate 2026 Canadian eavestrough cleaning prices in CAD by linear foot, storey count, debris level, and access. Itemized service-call floor, downspout flush, leaf-guard refit, ice-and-water-shield inspection.

Calculate Canadian eavestrough size from roof area, pitch and design rainfall per NBC 2020 / CSA B406. K-style, half-round and box, with downspout sizing in CAD.

Estimate Canadian 2026 roof restoration coating cost by area (sqft), chemistry (silicone, acrylic, urethane, butyl, asphaltic), DFT, prep, condition, and access — sized to NBC 2020 and CRCA detailing for BUR, single-ply, mod-bit, metal, and concrete decks.

Size attic ventilation per NBC 2020 9.19.1 — total NFA, balanced soffit intake plus ridge or roof-cap exhaust, with vent counts.

Estimate Canadian 2026 roof ventilation installation cost — ridge vent, soffit intake, gable, static box, turbine, powered attic fan, solar vent. Sized to NBC 2020 Section 9.19 1:300 ratio.

Free Canadian roofing square calculator. Convert sq ft into roofing squares (1 sq = 100 sq ft), then estimate shingle bundles, ice & water shield, drip edge, and roofing nails to NBC 2020. Waste built in.

Estimate 2026 Canadian tile roof installation cost by line item: concrete, clay, natural slate, or synthetic composite, with tear-off, ice-and-water shield, batten, ridge cap, valley flashing, structural reinforcement, permit and disposal. Real 2026 CRCA contractor rates per NBC 9.26.

Compare 2026 Canadian eavestrough prices across vinyl, aluminum 5K, galvalume, zinc and copper on the same job. DIY material-only vs full pro install, plus 30-year ownership cost projection per NBC 2020 and provincial codes.

Estimate Canadian 2026 cost to tear off an existing roof prior to re-roofing — by area (sqft), material (asphalt, metal, tile, slate, mod-bit, BUR, single-ply), layers, deck condition, storey, access, and disposal distance. Sized to NBC 2020 and CRCA detailing.

Estimate 2026 Canadian roof underlayment cost by line item: 15-lb felt, 30-lb felt, synthetic UDL (Titanium, RoofTopGuard, Tiger Paw), or full self-adhered SBS, with NBC 9.26.6-mandatory ice-and-water shield, drip edge, starter strip, tear-off, permit and disposal. Real 2026 CRCA and NBC 9.26 contractor rates.

Free hip roof calculator for Canada. Compute surface area, common and hip rafter lengths, and ridge length to NBC 9.23 — supports both ft and metres, X/12 and degrees.

Estimate Canadian 2026 ridge cap cost by linear foot, material (hip-and-ridge shingle, concrete or clay tile, formed metal, standing seam) and storey count. Sized to NBC 2020 Part 9.26 and CRCA Roofing Specs Manual rates.

Estimate 2026 Canadian roof cleaning cost by area, soft wash vs pressure wash, moss/algae level, pitch and storey. CRCA-aligned guidance for asphalt, metal, slate.

2026 Canadian roof deck (sheathing) replacement cost by line item: OSB or CSP plywood, tear-off, ice-and-water shield to NBC 9.26.7, rafter sistering, fasteners, permit, and disposal. Real 2026 contractor rates per CRCA and NBC 2020.

Free roof estimate calculator for Canada. Build a contractor-style quote with line-item costs, overhead, profit, contingency and HST/GST/PST — plus a good/better/best 3-tier offer and 30/40/30 progress draws.

Estimate 2026 Canadian roof flashing cost by component — chimney, skylight, step, valley, drip edge — in aluminum, copper, lead, zinc, galvanized. Per-foot pricing + storey multiplier.

Calculate the rise of a shed roof from span and pitch (X/12 or degrees), or work backwards from a target rise. Returns rafter length, slope factor, and surface multiplier to NBC 2020.

Estimate Canadian 2026 soffit and fascia replacement cost per linear footage, material (aluminum, vinyl, painted cedar, fibre-cement, composite), storey, and access — sized to NBC 2020 and CRCA eaves detailing.

Estimate 2026 Canadian clay tile roof installation cost by line item: Spanish/S-tile, Mission, flat interlocking, Roman, or pantile profile, natural terracotta or glazed finish (Ludowici, MCA, Sant'Anselmo import), with tear-off, ice-and-water shield + high-temp self-adhered underlay, battens, hip-and-ridge tiles, open copper valley, structural reinforcement uplift, permit, and disposal. 2026 CRCA rates per NBC 9.26.6.

Estimate Canadian 2026 valley flashing replacement cost by length, material (aluminium, copper, lead, zinc), valley type (open W-valley, closed-cut, woven), and storey count. Sized to NBC 9.26 and CRCA detailing.

Estimate Canadian 2026 chimney flashing cost by chimney size, material (aluminum, copper, lead, zinc), masonry condition, and storey. Sized to NBC 9.26 and CRCA guidance with 2026 CAD labour rates.

Estimate Canadian 2026 copper roof cost by area, profile (standing seam, flat-lock, batten, shingle), copper gauge and storey. Sized to CSA A123.3, NBC 2025 and CRCA Roofing Specs Manual.

Estimate 2026 Canadian hailstorm roof damage claim by hailstone size, asphalt/metal/tile, age and impacted slopes — costed to NBC 2020 / CSA A123 and Q1 2026 CRCA contractor rates. Tuned to AB / SK / southern ON hail corridor.

Estimate Canadian 2026 zinc roof cost by area, profile (standing seam, flat-lock, batten, interlocking), thickness (0.7/0.8/1.0 mm), pre-weathered finish, tear-off and access. Sized to CSA A123.3 and the CRCA Roofing Specifications Manual.

Estimate 2026 Canadian composite (synthetic slate, shake, and polymer tile) roof installation cost by line item: DaVinci Roofscapes, EcoStar by Carlisle, Brava, Inspire, or F-Wave REVIA composite roofing, Class 4 impact (CSA A123.71) and Class A fire (ULC S107), with tear-off, ice-and-water shield, synthetic underlay, hip and ridge cap, copper or pre-painted aluminum valley, pipe and skylight flashings, municipal permit, and disposal. Real 2026 CRCA contractor rates per NBC 9.26.

Estimate Canadian 2026 spray polyurethane foam (SPF) roof cost by area, foam thickness, density, silicone-coating mils, storey and access. Aligns with CAN/ULC S705.1 and CRCA Roofing Specifications Manual.

Estimate 2026 Canadian TPO single-ply membrane roof cost by line item: 45/60/80-mil membrane, mechanically attached, fully adhered, induction-welded RhinoBond, or ballasted, with polyiso insulation, HD coverboard, drains, tear-off, permit and disposal. Real 2026 CRCA and NBC 9.26 contractor rates.

Estimate Canadian 2026 mansard roof cost by lower-face area, upper-deck area, materials, dormer count, storey and access. Aligns with NBC 2020 Part 9 9.26, CSA A123 series, CRCA Roofing Specs Manual, provincial heritage Acts.

Size downspouts from roof area, pitch and rainfall using SMACNA / NBC 9.26 — rectangular and round profiles in aluminum, galvanized steel and copper.

Estimate annual cooling-energy savings, carbon avoided and payback when upgrading from a dark roof to a high-reflectance cool roof in the Canadian climate. Method aligned to NRCan EnerGuide and CRCA Cool Roofing Council guidance.

Estimate the on-slope area of a gambrel (barn-style) roof in Canada. Two-pitch geometry, NBC 2020 references, mixed imperial / metric, costed in CAD per square.

Estimate 2026 Canadian gutter replacement pricing — tear-off of old eavestrough, fascia repair, new seamless aluminum, copper, steel systems, downspouts, drip edge. Per-foot line items in CAD.

Calculate roofing materials in Canada for 2026: shingles, ice & water shield, underlayment, drip edge, ridge cap and nails — sized to NBC 2020 and priced in CAD.

Estimate Canadian 2026 modified-bitumen flat roof cost (SBS torch-on, APP torch-on, SBS self-adhered, cold-applied) by area, layering, reinforcement, insulation, drains and storey. Aligned with CSA A123.21 and the CRCA Roofing Specifications Manual.