Insulation Price Calculator

Insulation Price Calculator: Estimate Your Project Costs :root { –primary-color: #004a99; –success-color: #28a745; –background-color: #f8f9fa; –text-color: #333; –border-color: #ddd; –card-background: #fff; –shadow: 0 4px 8px rgba(0,0,0,0.1); } body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; background-color: var(–background-color); color: var(–text-color); line-height: 1.6; margin: 0; padding: 0; display: flex; flex-direction: column; align-items: center; } .container { width: 100%; max-width: 1000px; margin: 20px auto; padding: 20px; background-color: var(–card-background); border-radius: 8px; box-shadow: var(–shadow); } h1, h2, h3 { color: var(–primary-color); text-align: center; } h1 { margin-bottom: 10px; } .subtitle { text-align: center; color: #555; margin-bottom: 30px; font-size: 1.1em; } .calculator-section { background-color: var(–card-background); padding: 30px; border-radius: 8px; box-shadow: var(–shadow); margin-bottom: 30px; } .loan-calc-container { display: flex; flex-direction: column; gap: 20px; } .input-group { display: flex; flex-direction: column; gap: 5px; } .input-group label { font-weight: bold; color: var(–primary-color); } .input-group input[type="number"], .input-group select { padding: 12px; border: 1px solid var(–border-color); border-radius: 5px; font-size: 1em; width: 100%; box-sizing: border-box; } .input-group input[type="number"]:focus, .input-group select:focus { outline: none; border-color: var(–primary-color); box-shadow: 0 0 0 3px rgba(0, 74, 153, 0.2); } .input-group .helper-text { font-size: 0.85em; color: #666; } .error-message { color: #dc3545; font-size: 0.85em; margin-top: 5px; display: none; /* Hidden by default */ } .button-group { display: flex; gap: 15px; margin-top: 25px; flex-wrap: wrap; /* Allow wrapping on smaller screens */ } .button-group button { padding: 12px 25px; border: none; border-radius: 5px; font-size: 1em; font-weight: bold; cursor: pointer; transition: background-color 0.3s ease, transform 0.2s ease; flex: 1; /* Distribute space */ min-width: 150px; /* Minimum width before wrapping */ } .calculate-button { background-color: var(–primary-color); color: white; } .calculate-button:hover { background-color: #003366; transform: translateY(-2px); } .reset-button { background-color: #6c757d; color: white; } .reset-button:hover { background-color: #5a6268; transform: translateY(-2px); } .copy-button { background-color: var(–success-color); color: white; } .copy-button:hover { background-color: #218838; transform: translateY(-2px); } #results-container { margin-top: 30px; padding: 25px; border: 1px dashed var(–primary-color); border-radius: 8px; background-color: #eef7ff; display: none; /* Hidden by default */ } #results-container h3 { margin-top: 0; color: var(–primary-color); } .result-item { margin-bottom: 15px; font-size: 1.1em; } .result-item strong { color: var(–primary-color); display: inline-block; min-width: 200px; /* Align values */ } .primary-result { font-size: 1.8em; font-weight: bold; color: var(–success-color); background-color: #d4edda; padding: 15px; border-radius: 5px; text-align: center; margin-bottom: 20px; border: 2px solid var(–success-color); } .formula-explanation { font-size: 0.9em; color: #555; margin-top: 15px; padding-top: 15px; border-top: 1px solid var(–border-color); } .table-responsive { overflow-x: auto; margin-top: 20px; margin-bottom: 20px; border: 1px solid var(–border-color); border-radius: 5px; } table { width: 100%; border-collapse: collapse; min-width: 600px; /* Ensure horizontal scroll */ } caption { font-size: 1.1em; font-weight: bold; color: var(–primary-color); margin-bottom: 10px; text-align: left; } th, td { padding: 12px 15px; text-align: left; border-bottom: 1px solid var(–border-color); } thead th { background-color: var(–primary-color); color: white; font-weight: bold; } tbody tr:nth-child(even) { background-color: #f2f2f2; } tbody tr:hover { background-color: #e9ecef; } .chart-container { width: 100%; max-width: 100%; margin-top: 20px; background-color: var(–card-background); padding: 20px; border-radius: 8px; box-shadow: var(–shadow); text-align: center; } canvas { max-width: 100%; height: auto; } .article-section { margin-top: 40px; padding: 30px; background-color: var(–card-background); border-radius: 8px; box-shadow: var(–shadow); } .article-section h2, .article-section h3 { text-align: left; margin-bottom: 15px; } .article-section p { margin-bottom: 15px; } .article-section ul, .article-section ol { margin-left: 20px; margin-bottom: 15px; } .article-section li { margin-bottom: 8px; } .faq-item { margin-bottom: 20px; border-bottom: 1px dashed var(–border-color); padding-bottom: 15px; } .faq-item:last-child { border-bottom: none; } .faq-item strong { display: block; color: var(–primary-color); margin-bottom: 5px; font-size: 1.1em; } .internal-links { margin-top: 30px; padding: 25px; background-color: #eef7ff; border-radius: 8px; border: 1px dashed var(–primary-color); } .internal-links h3 { text-align: left; margin-top: 0; color: var(–primary-color); } .internal-links ul { list-style: none; padding: 0; margin: 0; } .internal-links li { margin-bottom: 10px; } .internal-links a { color: var(–primary-color); text-decoration: none; font-weight: bold; } .internal-links a:hover { text-decoration: underline; } .internal-links span { font-size: 0.9em; color: #555; display: block; margin-top: 3px; } footer { text-align: center; margin-top: 40px; padding: 20px; font-size: 0.9em; color: #777; } @media (max-width: 768px) { .container { margin: 10px; padding: 15px; } .button-group button { flex: 1 1 100%; /* Stack buttons */ min-width: unset; } .primary-result { font-size: 1.5em; } .result-item strong { min-width: unset; display: block; margin-bottom: 5px; } }

Insulation Price Calculator

Estimate the cost of insulating your home or specific areas accurately.

Enter the total square footage you need to insulate.
Fiberglass Batts Mineral Wool Batts Spray Foam (Open Cell) Spray Foam (Closed Cell) Cellulose (Blown-in)
Select the type of insulation material.
Average cost of the insulation material per square foot.
Average hourly wage for insulation installers.
Total estimated hours for the installation job.
Any other expenses related to the project.

Your Insulation Project Estimate

Total Material Cost:
Total Labor Cost:
Total Estimated Cost:
Cost per Sq Ft:
Formula Used:
Total Material Cost = Area to Insulate * Material Cost per Sq Ft
Total Labor Cost = Hours to Install * Labor Cost per Hour
Total Estimated Cost = Total Material Cost + Total Labor Cost + Additional Costs
Cost per Sq Ft = Total Estimated Cost / Area to Insulate

Cost Breakdown Over Area

Cost Components by Area
Area (sq ft) Material Cost ($) Labor Cost ($) Total Cost ($)

What is Insulation Pricing?

Insulation pricing refers to the estimated cost associated with installing insulation materials in a building. This cost is a crucial factor for homeowners and contractors when planning renovations, new constructions, or energy efficiency upgrades. Understanding insulation pricing helps in budgeting, comparing quotes, and making informed decisions about the type and amount of insulation to use. The primary goal of insulation is to reduce heat transfer, thereby improving comfort and lowering energy bills. Accurate insulation pricing considers various components, including the cost of materials, labor, and any additional expenses.

Who should use an insulation price calculator? Homeowners planning to improve their home's energy efficiency, contractors estimating project costs, builders working on new constructions, and property managers looking to reduce operational expenses can all benefit from using an insulation price calculator. It provides a quick and accessible way to get a preliminary cost estimate before seeking professional quotes.

Common misconceptions about insulation pricing: One common misconception is that all insulation types cost the same. In reality, materials like spray foam are significantly more expensive than fiberglass or cellulose. Another misconception is that labor costs are fixed; they can vary greatly depending on the complexity of the job, the location, and the installer's experience. Finally, some believe insulation is a one-time cost with no long-term financial benefit, overlooking the substantial energy savings and increased property value it provides.

Insulation Price Calculation and Mathematical Explanation

Calculating the insulation price involves summing up the costs of materials, labor, and any miscellaneous expenses, then often normalizing it to a per-square-foot basis for easier comparison. The core components are material cost, labor cost, and additional project-specific expenses.

The Insulation Price Formula

The fundamental formula to estimate the total insulation project cost is:

Total Estimated Cost = (Area to Insulate × Material Cost per Sq Ft) + (Hours to Install × Labor Cost per Hour) + Additional Costs

To provide a more granular understanding, we also calculate:

Total Material Cost = Area to Insulate × Material Cost per Sq Ft

Total Labor Cost = Hours to Install × Labor Cost per Hour

And for benchmarking:

Cost per Sq Ft = Total Estimated Cost / Area to Insulate

Variable Explanations

Here's a breakdown of the variables used in the insulation price calculation:

Insulation Price Calculator Variables
Variable Meaning Unit Typical Range
Area to Insulate The total surface area requiring insulation. Square Feet (sq ft) 100 – 5000+
Insulation Type The specific type of insulation material chosen (e.g., fiberglass, spray foam). This influences material cost and R-value. N/A (Selection) Fiberglass, Mineral Wool, Spray Foam, Cellulose
Material Cost per Sq Ft The cost of the insulation material for each square foot. Dollars ($) $0.50 – $6.00+
Labor Cost per Hour The hourly rate charged by insulation installation professionals. Dollars ($) $40 – $100+
Hours to Install The estimated total time required for the installation process. Hours (hr) 5 – 100+
Additional Costs Miscellaneous expenses like permits, tool rentals, disposal fees, or unexpected issues. Dollars ($) $50 – $1000+
Total Estimated Cost The sum of all costs for the insulation project. Dollars ($) Varies widely
Cost per Sq Ft The average cost of insulation per square foot of the area covered. Dollars ($) $1.00 – $10.00+

Practical Examples (Real-World Use Cases)

Example 1: Insulating an Attic in a Suburban Home

A homeowner wants to insulate their attic, which has an area of 1200 sq ft. They choose fiberglass batts, which cost approximately $1.20 per sq ft for the material. The installation is estimated to take 25 hours, and the local labor rate is $60 per hour. They also anticipate $150 in additional costs for sealing air leaks.

Inputs:

  • Area to Insulate: 1200 sq ft
  • Insulation Type: Fiberglass Batts (Material Cost: $1.20/sq ft)
  • Material Cost per Sq Ft: $1.20
  • Labor Cost per Hour: $60
  • Estimated Hours to Install: 25 hours
  • Additional Costs: $150

Calculations:

  • Total Material Cost = 1200 sq ft * $1.20/sq ft = $1440
  • Total Labor Cost = 25 hours * $60/hour = $1500
  • Total Estimated Cost = $1440 + $1500 + $150 = $3090
  • Cost per Sq Ft = $3090 / 1200 sq ft = $2.58/sq ft

Financial Interpretation: The estimated cost for this attic insulation project is $3090, averaging $2.58 per square foot. This figure helps the homeowner budget for the upgrade and understand the breakdown between material and labor expenses. This investment is expected to yield long-term savings on heating and cooling bills.

Example 2: Insulating a Basement in a New Construction

A builder is working on a new home and needs to insulate the basement walls, covering approximately 800 sq ft. They opt for open-cell spray foam, which has a material cost of $3.00 per sq ft. The installation is expected to take 16 hours, with a labor rate of $75 per hour. Additional costs for equipment setup and permits are estimated at $300.

Inputs:

  • Area to Insulate: 800 sq ft
  • Insulation Type: Open-Cell Spray Foam (Material Cost: $3.00/sq ft)
  • Material Cost per Sq Ft: $3.00
  • Labor Cost per Hour: $75
  • Estimated Hours to Install: 16 hours
  • Additional Costs: $300

Calculations:

  • Total Material Cost = 800 sq ft * $3.00/sq ft = $2400
  • Total Labor Cost = 16 hours * $75/hour = $1200
  • Total Estimated Cost = $2400 + $1200 + $300 = $3900
  • Cost per Sq Ft = $3900 / 800 sq ft = $4.88/sq ft

Financial Interpretation: The total estimated cost for insulating the basement with spray foam is $3900, or $4.88 per square foot. While spray foam is more expensive upfront than fiberglass, its superior air-sealing properties can lead to greater long-term energy savings and improved indoor air quality, justifying the higher initial investment. This detailed breakdown aids in project management and cost control for the builder.

How to Use This Insulation Price Calculator

Using our Insulation Price Calculator is straightforward and designed to give you a quick, reliable estimate for your insulation project. Follow these simple steps:

  1. Enter the Area to Insulate: Input the total square footage of the space you plan to insulate (e.g., attic floor, crawl space walls, exterior walls). Be as accurate as possible.
  2. Select Insulation Type: Choose the type of insulation material you are considering from the dropdown menu. Each type has different properties and costs. The calculator will automatically use a typical material cost per square foot associated with your selection, but you can override this if you have specific pricing.
  3. Input Material Cost per Sq Ft: If you have a specific material cost in mind (perhaps from a supplier quote), enter it here. Otherwise, the calculator uses a default based on the selected insulation type.
  4. Enter Labor Cost per Hour: Input the average hourly rate you expect to pay for professional insulation installation in your area.
  5. Estimate Hours to Install: Provide an estimate of the total time the installation is expected to take. This can be based on contractor quotes or industry averages for similar projects.
  6. Add Additional Costs: Include any other anticipated expenses, such as permits, tool rentals, waste disposal, or specialized preparation work.
  7. Calculate: Click the "Calculate Price" button.

How to Read Results: The calculator will display:

  • Primary Highlighted Result (Total Estimated Cost): The overall projected cost for your insulation project.
  • Total Material Cost: The estimated cost of the insulation materials alone.
  • Total Labor Cost: The estimated cost for the installation labor.
  • Cost per Sq Ft: The average cost broken down per square foot, useful for comparing different project scopes or quotes.
A brief explanation of the formulas used is also provided.

Decision-Making Guidance: Use these estimates to:

  • Budget Effectively: Understand the financial commitment required for your insulation upgrade.
  • Compare Quotes: Use the calculated figures as a benchmark when evaluating quotes from different insulation contractors.
  • Assess ROI: Consider the potential energy savings against the upfront cost to determine the return on investment. Higher upfront costs for premium insulation might lead to greater long-term savings.
  • Plan Project Scope: Decide if the estimated cost aligns with your budget and adjust the scope (e.g., type of insulation, area covered) if necessary.
Remember, this calculator provides an estimate. For precise project costs, always obtain detailed quotes from qualified insulation professionals.

Key Factors That Affect Insulation Price Results

Several factors can significantly influence the final price of an insulation project. Understanding these variables helps in interpreting calculator results and refining project estimates:

  • Type of Insulation Material: As seen in the calculator, different materials (fiberglass, mineral wool, cellulose, spray foam) have vastly different price points per square foot. Spray foam is generally the most expensive but offers superior performance in air sealing and R-value per inch.
  • Area and Complexity of Installation Space: Larger areas naturally increase material and labor costs. However, complex spaces with many obstructions (pipes, wiring, irregular shapes, tight access) require more time and skill, driving up labor costs significantly compared to simple, open areas like a flat attic floor.
  • R-Value Requirements: Building codes and climate zones dictate minimum R-values (a measure of thermal resistance). Achieving higher R-values often requires thicker insulation or more expensive materials, increasing the overall cost.
  • Labor Rates and Availability: Hourly wages for insulation installers vary by region and demand. In areas with a shortage of skilled labor or high cost of living, labor costs will be higher. The experience level of the installer also plays a role.
  • Existing Insulation: If old insulation needs to be removed before new insulation can be installed, this adds an extra labor step and potential disposal costs, increasing the project's total price.
  • Permits and Inspections: Many insulation projects require building permits, which come with associated fees. Local regulations may also mandate inspections, adding to the administrative and time costs.
  • Contractor vs. DIY: While DIY installation can save on labor costs, it requires time, tools, and knowledge. Professional installation ensures proper technique and often comes with warranties, but at a higher overall price. The calculator assumes professional installation.
  • Geographic Location: Material availability, shipping costs, local labor rates, and regional building codes all contribute to price variations across different geographical areas.

Frequently Asked Questions (FAQ)

Q1: How accurate is this insulation price calculator?

This calculator provides a good estimate based on the inputs you provide and typical industry averages. However, actual costs can vary due to specific site conditions, contractor pricing, and market fluctuations. It's best used for initial budgeting and comparison.

Q2: What is the R-value, and how does it affect price?

R-value measures an insulation material's resistance to heat flow. Higher R-values mean better insulation. Materials offering higher R-values per inch (like closed-cell spray foam) are often more expensive but may require less space, potentially reducing overall project scope and cost in some scenarios.

Q3: Is spray foam insulation worth the higher cost?

For many applications, yes. Spray foam provides superior air sealing, higher R-values, and can add structural integrity. While its upfront cost is higher, the long-term energy savings and improved comfort can offer a strong return on investment, especially in challenging climates or complex spaces.

Q4: How much time does insulation installation typically take?

Installation time varies greatly. Simple attic insulation with batts might take a day or two for a professional crew. Spray foam installation, including preparation and curing, can also be completed relatively quickly, but complex jobs in crawl spaces or walls with many obstacles can take longer. The calculator uses your estimated hours.

Q5: Should I remove old insulation before adding new?

It depends. If the old insulation is damaged, wet, or contaminated (e.g., mold, pests), removal is recommended. If it's in good condition, new insulation can sometimes be added on top, but ensure you don't exceed the required R-value for your climate zone and maintain proper ventilation. Removal adds cost.

Q6: Are there government rebates or tax credits for insulation?

Yes, many regions offer incentives like tax credits or rebates for energy-efficient upgrades, including insulation. Check with your local utility companies, state energy offices, and federal energy programs (like ENERGY STAR) for available programs that can reduce your net cost.

Q7: How do I choose the right insulation type for my home?

Consider your budget, the area being insulated (attic, walls, basement), desired R-value, and specific needs (e.g., moisture resistance, soundproofing). Fiberglass and cellulose are cost-effective for attics, while spray foam excels in air sealing and challenging spaces. Consulting with an insulation professional is highly recommended.

Q8: Can I install insulation myself to save money?

For certain types like fiberglass batts, DIY installation is possible if you have the right tools and safety precautions. However, spray foam requires specialized equipment and training. While DIY saves labor costs, improper installation can lead to reduced effectiveness and potential health hazards. Always prioritize safety and effectiveness.

© 2023 Your Company Name. All rights reserved.

Disclaimer: This calculator provides estimates for informational purposes only. Consult with qualified professionals for accurate quotes and advice.

var chartInstance = null; // Global variable to hold chart instance function getElement(id) { return document.getElementById(id); } function validateInput(inputId, errorId, minValue, maxValue) { var inputElement = getElement(inputId); var errorElement = getElement(errorId); var value = parseFloat(inputElement.value); errorElement.style.display = 'none'; // Hide error by default if (isNaN(value)) { errorElement.textContent = 'Please enter a valid number.'; errorElement.style.display = 'block'; return false; } if (value < 0) { errorElement.textContent = 'Value cannot be negative.'; errorElement.style.display = 'block'; return false; } if (minValue !== undefined && value maxValue) { errorElement.textContent = 'Value cannot exceed ' + maxValue + '.'; errorElement.style.display = 'block'; return false; } return true; } function calculateInsulationPrice() { var areaToInsulate = parseFloat(getElement('areaToInsulate').value); var insulationTypeSelect = getElement('insulationType'); var materialCostPerSqFtInput = getElement('materialCostPerSqFt'); var laborCostPerHour = parseFloat(getElement('laborCostPerHour').value); var hoursToInstall = parseFloat(getElement('hoursToInstall').value); var additionalCosts = parseFloat(getElement('additionalCosts').value); // Clear previous errors getElement('areaToInsulateError').style.display = 'none'; getElement('materialCostPerSqFtError').style.display = 'none'; getElement('laborCostPerHourError').style.display = 'none'; getElement('hoursToInstallError').style.display = 'none'; getElement('additionalCostsError').style.display = 'none'; // Validation var isValid = true; if (!validateInput('areaToInsulate', 'areaToInsulateError', 1)) isValid = false; if (!validateInput('materialCostPerSqFt', 'materialCostPerSqFtError', 0)) isValid = false; if (!validateInput('laborCostPerHour', 'laborCostPerHourError', 0)) isValid = false; if (!validateInput('hoursToInstall', 'hoursToInstallError', 0)) isValid = false; if (!validateInput('additionalCosts', 'additionalCostsError', 0)) isValid = false; if (!isValid) { getElement('results-container').style.display = 'none'; return; } var selectedMaterialCost = parseFloat(insulationTypeSelect.value); var materialCostPerSqFt = parseFloat(materialCostPerSqFtInput.value); // Use the input value if provided, otherwise use the default from select if (isNaN(materialCostPerSqFt) || materialCostPerSqFt maxValue) { maxValue = seriesMax; } }); if (maxValue === 0) maxValue = 1; // Avoid division by zero // Draw Axes ctx.strokeStyle = '#ccc'; ctx.lineWidth = 1; // Y-axis ctx.beginPath(); ctx.moveTo(padding, padding); ctx.lineTo(padding, height – padding); ctx.stroke(); // X-axis ctx.beginPath(); ctx.moveTo(padding, height – padding); ctx.lineTo(width – padding, height – padding); ctx.stroke(); // Y-axis labels and ticks ctx.fillStyle = '#555'; ctx.textAlign = 'right'; ctx.textBaseline = 'middle'; var numYLabels = 5; for (var i = 0; i <= numYLabels; i++) { var value = Math.round(maxValue * (i / numYLabels)); var yPos = height – padding – (chartAreaHeight * (i / numYLabels)); ctx.fillText(value.toFixed(0), padding – 10, yPos); ctx.beginPath(); ctx.moveTo(padding – 5, yPos); ctx.lineTo(padding, yPos); ctx.stroke(); } // X-axis labels ctx.textAlign = 'center'; ctx.textBaseline = 'top'; var pointSpacing = chartAreaWidth / (numPoints – 1); labels.forEach(function(label, index) { var xPos = padding + index * pointSpacing; ctx.fillText(label, xPos, height – padding + 10); }); // Draw Data Series data.forEach(function(series, seriesIndex) { ctx.strokeStyle = colors[seriesIndex % colors.length]; ctx.lineWidth = 2; ctx.beginPath(); series.values.forEach(function(value, index) { var xPos = padding + index * pointSpacing; var yPos = height – padding – (chartAreaHeight * (value / maxValue)); if (index === 0) { ctx.moveTo(xPos, yPos); } else { ctx.lineTo(xPos, yPos); } }); ctx.stroke(); // Draw points ctx.fillStyle = colors[seriesIndex % colors.length]; series.values.forEach(function(value, index) { var xPos = padding + index * pointSpacing; var yPos = height – padding – (chartAreaHeight * (value / maxValue)); ctx.beginPath(); ctx.arc(xPos, yPos, 4, 0, Math.PI * 2); ctx.fill(); }); }); // Draw Legend (simple text-based) ctx.textAlign = 'left'; ctx.textBaseline = 'top'; ctx.font = '12px Arial'; var legendY = padding / 2; data.forEach(function(series, seriesIndex) { ctx.fillStyle = colors[seriesIndex % colors.length]; ctx.fillRect(padding + seriesIndex * 100, legendY – 6, 12, 12); // Color box ctx.fillStyle = '#333'; ctx.fillText(series.label, padding + seriesIndex * 100 + 18, legendY – 8); }); } function updateCanvasChartAndTable(baseArea, baseMaterialCost, baseLaborRate, baseHours, baseAddCosts) { var canvas = getElement('costBreakdownChart'); var ctx = canvas.getContext('2d'); var tableBody = getElement('chartDataTableBody'); tableBody.innerHTML = ''; // Clear previous table data var dataPoints = [ { area: baseArea * 0.5, label: '50% Area' }, { area: baseArea * 0.75, label: '75% Area' }, { area: baseArea, label: '100% Area' }, { area: baseArea * 1.25, label: '125% Area' }, { area: baseArea * 1.5, label: '150% Area' } ]; var chartData = [ { label: 'Material Cost ($)', values: [] }, { label: 'Labor Cost ($)', values: [] }, { label: 'Total Cost ($)', values: [] } ]; var colors = ['rgb(75, 192, 192)', 'rgb(255, 99, 132)', 'rgb(54, 162, 235)']; var chartLabels = dataPoints.map(function(p) { return p.label; }); dataPoints.forEach(function(point) { var currentArea = point.area; var currentMaterialCost = currentArea * baseMaterialCost; var currentLaborHours = baseHours * (currentArea / baseArea); var currentLaborCost = currentLaborHours * baseLaborRate; var currentTotalCost = currentMaterialCost + currentLaborCost + baseAddCosts; chartData[0].values.push(currentMaterialCost); chartData[1].values.push(currentLaborCost); chartData[2].values.push(currentTotalCost); // Populate table row var row = tableBody.insertRow(); var cellLabel = row.insertCell(0); var cellMaterial = row.insertCell(1); var cellLabor = row.insertCell(2); var cellTotal = row.insertCell(3); cellLabel.textContent = point.label + ' (' + currentArea.toFixed(0) + ' sq ft)'; cellMaterial.textContent = '$' + currentMaterialCost.toFixed(2); cellLabor.textContent = '$' + currentLaborCost.toFixed(2); cellTotal.textContent = '$' + currentTotalCost.toFixed(2); }); // Adjust canvas size for responsiveness var chartContainer = canvas.parentElement; canvas.width = chartContainer.clientWidth; canvas.height = 400; // Fixed height or adjust dynamically drawCanvasChart(ctx, chartData, chartLabels, colors); } // Replace the call to updateChartAndTable with updateCanvasChartAndTable function calculateInsulationPrice() { var areaToInsulate = parseFloat(getElement('areaToInsulate').value); var insulationTypeSelect = getElement('insulationType'); var materialCostPerSqFtInput = getElement('materialCostPerSqFt'); var laborCostPerHour = parseFloat(getElement('laborCostPerHour').value); var hoursToInstall = parseFloat(getElement('hoursToInstall').value); var additionalCosts = parseFloat(getElement('additionalCosts').value); // Clear previous errors getElement('areaToInsulateError').style.display = 'none'; getElement('materialCostPerSqFtError').style.display = 'none'; getElement('laborCostPerHourError').style.display = 'none'; getElement('hoursToInstallError').style.display = 'none'; getElement('additionalCostsError').style.display = 'none'; // Validation var isValid = true; if (!validateInput('areaToInsulate', 'areaToInsulateError', 1)) isValid = false; if (!validateInput('materialCostPerSqFt', 'materialCostPerSqFtError', 0)) isValid = false; if (!validateInput('laborCostPerHour', 'laborCostPerHourError', 0)) isValid = false; if (!validateInput('hoursToInstall', 'hoursToInstallError', 0)) isValid = false; if (!validateInput('additionalCosts', 'additionalCostsError', 0)) isValid = false; if (!isValid) { getElement('results-container').style.display = 'none'; return; } var selectedMaterialCost = parseFloat(insulationTypeSelect.value); var materialCostPerSqFt = parseFloat(materialCostPerSqFtInput.value); if (isNaN(materialCostPerSqFt) || materialCostPerSqFt <= 0) { materialCostPerSqFt = selectedMaterialCost; materialCostPerSqFtInput.value = selectedMaterialCost.toFixed(2); } var totalMaterialCost = areaToInsulate * materialCostPerSqFt; var totalLaborCost = hoursToInstall * laborCostPerHour; var totalEstimatedCost = totalMaterialCost + totalLaborCost + additionalCosts; var costPerSqFt = totalEstimatedCost / areaToInsulate; getElement('totalMaterialCost').textContent = '$' + totalMaterialCost.toFixed(2); getElement('totalLaborCost').textContent = '$' + totalLaborCost.toFixed(2); getElement('primaryResult').textContent = '$' + totalEstimatedCost.toFixed(2); getElement('totalEstimatedCost').textContent = '$' + totalEstimatedCost.toFixed(2); getElement('costPerSqFt').textContent = '$' + costPerSqFt.toFixed(2); getElement('results-container').style.display = 'block'; updateCanvasChartAndTable(areaToInsulate, materialCostPerSqFt, laborCostPerHour, hoursToInstall, additionalCosts); } // Initial calculation on load document.addEventListener('DOMContentLoaded', function() { calculateInsulationPrice(); });

Leave a Comment