Roofing Guides
Practical roofing guidance for Central Texas homeowners. Compare materials, plan a repair or replacement, and understand the details before your estimate.
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Plan a replacement
Understand costs and prepare for your project.
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Solve a roof problem
Find guidance on leaks, storm damage and repairs.
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Compare shingles & colors
Explore shingle choices, colors and warranties.
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More roofing topics
Metal roofing
Flat & low-slope roofs
Ventilation & attic moisture
Roof installation details
Maintenance & roof appearance
Browse by brand or guide type
Start here
Compare GAF Shingles
Compare GAF shingle styles and product information, then match the material, roof details and warranty requirements to your estimate.
GAF Roof Warranties
Learn what to ask about GAF roof warranties, product eligibility, registration and the difference between material and workmanship coverage.
Repair or Replace Your Roof?
Roof repair or replacement? Learn how roof condition, the extent of damage and surrounding materials help determine a practical scope of work.
Roof Replacement Costs
Compare installed roof prices for shingles, 24-gauge standing seam, 26-gauge exposed-fastener metal, TPO and modified bitumen. See what is included and what costs extra.
Standing Seam Roofing
Compare McElroy standing seam systems, clips, finishes and panel choices with clear photos and an estimate checklist.
What to Do After Hail
A practical hailstorm checklist: stay safe, document visible damage, arrange a roof inspection and understand the next steps with your insurer.
Planning & costs
Compare repair and replacement, understand cost factors, and prepare for your project.
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Leaks, storm damage & repairs
Learn about roof leaks, storm inspections, damaged shingles, and repair decisions.
After the Tarp: What Makes a Lasting Shingle Repair?
Atlas Flood-Submerged Shingles: Do Not Treat Them as New Stock
Atlas Hail Inspection: Document More Than Surface Marks
Atlas Shared Roof Repairs: A Watertight Townhouse Tie-In
Atlas Storm-Damaged Shingles: Inspect Broken Sealant Bonds
Connecting a Partial Roof Replacement at Hips and Ridges
Hail Damage Is Not Always Obvious
Ice Dams: Why Water Can Back Up Under a Roof
IKO Wind Damage: A Broken Seal Is Not the Whole Inspection
Inspecting Shingles After Fire or Excessive Heat
Matching Replacement Shingles: Color Is Only the Start
Matching Replacement TAMKO Shingles
Owens Corning Shingles After Flood Exposure
Owens Corning's Guidance on Hail Damage
Pipe Boots: A Small Detail With a Big Job
Repairing Duration Shingles Made Before 2012
Repairing Oakridge Shingles Made Before 2008
Roof Inspection After Fire or Excessive Heat
Roof Repairs on a Townhouse or Duplex
TAMKO Shingles Exposed to Floodwater
What to Do After Hail
Wind Damage Can Extend Beyond Missing Shingles
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Shingles, colors & warranties
Compare shingle products, colors, impact ratings, and warranty terms.
Atlas Class 4 Impact Ratings: What the Laboratory Test Means
Atlas Shingles & Colors
CertainTeed Landmark PRO Shingles
Class 3 Shingles
Class 4 Shingles
Compare GAF Shingles
Compare Malarkey Shingles
Compare Shingles & Warranties
Does a Heavier Shingle Mean a Better Roof?
Duration Shingle Colors and Solar Reflectivity
Full-Deck Leak Barrier and WindProven Eligibility
GAF Algae Protection Explained
GAF DuraGrip & WindProven
GAF LayerLock & StrikeZone
GAF Roof Warranties
GAF Shingle Colors
GAF System Plus: 50-Year Protection & WindProven
GAF Timberline AS II Shingles
IKO Dynasty vs. Nordic
Natural Slate Color and Shape Variations
New GAF Shingle Colors
Owens Corning Duration vs. FLEX
Owens Corning Roof Warranties
Owens Corning Shingle Warranties Under Solar Panels
Owens Corning: Understanding FORTIFIED Roof
Reading GAF Shingle Color Codes
TAMKO HailGuard Shingles
TAMKO Roof Warranties
TAMKO Shingle Colors
TAMKO Titan XT vs. FLEX
TAMKO Titan XT: What the Class 3 Rating Means
TAMKO: 3-Tab vs. Architectural
What Shingle Wind Tests Tell You
Wind Classification Versus Wind Warranty
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Metal roofing
Explore standing seam, exposed fasteners, metal colors, and system details.
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Flat & low-slope roofs
Explore commercial roof maintenance, TPO, modified bitumen, insulation, and low-slope details.
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Ventilation & attic moisture
Understand intake, exhaust, insulation, unvented attics, and drying considerations.
A Stronger Attic Fan Needs Enough Intake
Atlas Attic Ventilation: Balance Intake and Exhaust
Atlas Radiant Barriers: Airflow and Vapor Permeability Matter
Atlas Spray Foam and Attic Ventilation: Check the Warranty Conditions
Balanced Attic Ventilation: Intake Comes First
Full-Deck Membranes and Attic Drying
How Many Roof Vents Do I Need?
Malarkey Shingles and Radiant Barriers
Malarkey Warranty Guidance for Unvented Roofs
Owens Corning Coverage for Sealed and Unvented Attics
Roof Ventilation Basics
Roof Vents and Wind-Driven Snow
Spray-Foam Attics and Shingle Warranties: Ask the Right Question
TAMKO Shingles and Below-Deck Spray Foam
Vented and Unvented Attics Are Different Systems
Which Radiant-Barrier Details TAMKO Accepts
Wildfire-Zone Ventilation: Check the Applicable Rules
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Roof installation details
Learn about decking, underlayment, flashing, fasteners, valleys, and installation practices.
Adding Solar to a Malarkey Shingle Roof
Atlas California Valleys: Follow the Actual Drainage Detail
Atlas Closed Valleys: Keep Joints and Nails Out of the Water Path
Atlas Cold-Weather Shingling: Sealing Needs Attention
Atlas Open Valleys: Keep the Water Channel and Fasteners Separate
Atlas OSB Over Plank Decking: Approval Has Limits
Atlas Over ZIP Roof Decking: Follow Both Manufacturers
Atlas Reroofing: When Old Self-Adhering Underlayment Can Remain
Atlas Roof Deck Thickness: Match the Panel, Span and Fastening
Atlas Roofing Over Existing Shingles: A Narrow Exception
Atlas Shingle Nails: Placement and Drive Depth Matter
Atlas Solar Panels: Plan the Roof, Flashing and Future Access Together
Atlas Starter Strip Sizes: Match the Shingle Exposure
Atlas Steep-Slope Shingles: Fasteners and Hand Sealing
Atlas StormMaster Handling: Prevent Scuffs Before the Roof Is Finished
Atlas Wet Underlayment: Dry and Flatten It Before Shingling
Avoiding Adhesive Stains in Hot Weather
Can Existing Metal Flashing Be Reused?
Can Old Peel-and-Stick Underlayment Stay During a Reroof?
Choosing a Valley Detail for the Actual Shingle
Cold-Weather Installation of Leak Barriers
Cold-Weather Shingles: Why Sealing Needs a Plan
Cool Weather, Uneven Shingles and Seal-Down
Drip Edge and Shingle Overhang
Drip Edge: Finishing the Roof Perimeter
Exposed Shingle Nails: More Than a Cosmetic Detail
Fastening ProEdge and ImpactRidge Caps
Fastening Shingles Above Exposed Eaves
Flashing: Protecting Roof Transitions
GAF California Closed-Cut Valleys
GAF California Open Valleys
GAF Coil-Nail Wire: Keep Sharp Fastener Remnants Flush
GAF Full-Deck Leak Barrier: Balance Water Protection and Drying
GAF Open-Valley Fasteners: The Metal Needs Room to Move
High Nails Can Miss the Shingle's Holding Zone
How Shingle Storage Can Affect the Finished Roof
How TAMKO Shingle Bundles Should Be Loaded on a Roof
IKO Cambridge Sand Strip: It Is Not the Nail Line
Installing Malarkey Shingles in Cold Weather
Installing Owens Corning Self-Adhered Underlayment
Installing Shingles in Temperature Extremes
Leak Barriers Next to PVC and Vinyl-Coated Metal
Malarkey Shingle Racking: Layout and Fastening Risks
Nail-Gun Setup and Shingle Performance
Old Board Decking Under a New Malarkey Roof
Old Self-Adhered Underlayment Without an Ice-Dam Requirement
Overdriven and Angled Roofing Nails
Owens Corning Laminate-Shingle Nail Placement
Owens Corning Open-Metal Valley Details
Owens Corning Roof-Deck Requirements
Owens Corning Shingle Storage and Shelf Life
Owens Corning Shingles Over ZIP System Decking
Owens Corning's Three-Tab Racking Guidance
Owens Corning: California Valley Details
Owens Corning: Closed-Cut Valley Details
Owens Corning: Cold-Weather Shingle Installation
Owens Corning: Installing Drip Edge
Planning Solar Panels on a Shingle Roof
Protecting Shingles During Hot-Weather Installation
Racking Shingles: Why the Installation Pattern Matters
Repairing Wrinkles in Self-Adhered Underlayment
Reroofing Over Existing Ice-Dam Protection
Reroofing Over Full-Coverage Ice and Water Shield
Roof Crickets & Saddles
Roof Decking That Can Support Asphalt Shingles
Roof Decking: What Happens Before the Shingles
Roof Valleys: Following the Water Path
Roofing Material Compatibility
Roofing Nails Versus Staples
Roofing Nails Visible Under Open Eaves
Roofing Over Existing Shingles
Self-Adhered Underlayment Over Fire-Treated Plywood
Self-Adhering Roof Membranes in Hot Weather
Shingle Nailing: Placement, Depth and Holding
Shingle Offsets Keep Joints Apart
Shingle Offsets: Why the Rows Are Staggered
Shingle Storage Before Installation
Shingles on Cone Roofs: Why Layout Matters
Should the Plastic Strip Stay on a Shingle?
Solar-Mount Details for Owens Corning Roofs
Starter and Ridge Components in an Owens Corning Roof
Starter Shingles: The First Course Matters
Step Flashing: Where the Roof Meets a Wall
Storing TAMKO Shingles Before Installation
Synthetic Underlayment and Plastic Cap Fasteners
TAMKO Asphalt Shingles Over ZIP System Sheathing
TAMKO Heritage Alternative Nailing Pattern: Check Product and Plant
TAMKO Heritage Starter Substitution: When Tri-Built 10-Inch Applies
TAMKO Heritage Valley Underlayment: A Product-Specific Alternative
TAMKO Tile Underlayment: Mechanical Fasteners Versus Adhesive Attachment
The Fines Stripe Is Not Always the Nail Line
Underlayment at Hips and Ridges During Repairs
Valley Underlayment Without Bridging
What Is Roof Underlayment?
When an Upper Roof Drains Onto Shingles Below
When Shingles Need Hand-Sealing
When Smaller Step Flashing Is an Alternative
Which Surfaces Accept Titanium PSU30?
Why a Complete Tear-Off Matters
Why Starter-Shingle Width Matters
Wrinkled Felt Before Shingling
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Maintenance & roof appearance
Explore maintenance, algae, granules, stains, drainage, and changes in roof appearance.
Atlas Brown Roof Runoff: Identify the Residue and Drainage Path
Atlas Buckled Shingles: Find the Moisture and Decking Cause
Atlas Fascia Stains: Check Cement and Edge Details
Atlas Gutter Covers: Protect Shingles and Drip Edge
Atlas Oil Staining on New Shingles: Allow Natural Weathering
Atlas Roof Deck Movement: Why New Shingles Can Look Wavy
Black Roof Streaks: GAF's Algae Guidance
Brown Roof Residue Called Tobacco Juicing
Can Shingle-Roof Runoff Be Reused?
Collecting Water From a Malarkey Shingle Roof
GAF Manufacturing Dust: Let New Shingles Weather Naturally
Granules in the Gutter After a New Roof
Gutter Guards Should Not Damage Shingles
IKO Brown Roof Runoff: Understanding Tobacco-Juice Staining
IKO Shingle Blends: Why a Roof Can Show a Color Pattern
IKO Shingle Mixing on Large Roofs: Check the Production Codes
IKO Shingle Staining and Storage: Understanding the 2015 Bulletin
Loose Granules on a New Malarkey Roof
Manufacturing Splices in Asphalt Shingles
Mixing Malarkey Shingle Run Dates and Plant Locations
New Shingles That Look Distorted
Oil Staining on New Shingles
Owens Corning: Algae on Asphalt Shingles
Owens Corning: Roof Rejuvenators and Coatings
Owens Corning: Why Shingles Buckle
Roof Maintenance Checklist
Roof Shading Versus an Underlying Problem
Small Shingle Tooth Slivers
Upper Downspouts Can Wear a Lower Roof
Wavy or Buckled Shingles: Look Beneath the Surface
Why Aluminum Gutters and Flashing Can Corrode
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Browse by brand or guide type
Learn why shingle dimensions, condition and production differences matter when planning a localized roof repair.
GAF • Technical Bulletin
Why tarp nail holes and loose-granule patches need more than a cosmetic touch-up after a storm.
Bulletin revision: March 22, 2021
GAF • Technical Bulletin
What to discuss when an old self-adhered membrane will not come off cleanly, including deck inspection and extra layers.
Bulletin revision: February 1, 2021
Understand delayed sealing, careful handling and manufacturer-specific hand-sealing instructions during cold-weather roofing.
GAF • Technical Bulletin
An unvented attic does not justify a blanket warranty claim. Separate manufacturing defects from assembly-related damage.
Bulletin revision: February 1, 2021
Why wrinkles, deck movement and moisture deserve inspection before a surface-only shingle repair.
Learn the difference between sideways offset and exposed shingle height, with a simple diagram and questions for your installation.
Understand why nail placement and depth matter, what the fastening zone means, and which details a roof inspection should explain.
See how starter material differs from visible field shingles and what to confirm at the eave and rake edges.