DASMA Technical Data Sheets

Reference articles on dasma technical data sheets. Each one cites the original standard or code it is based on.

Showing 46 articles

DASMA TDS 1501 - Standard Lift Garage Doors with Jackshaft Operators

DASMA TDS 1501 covers the compatibility and installation requirements when using a jackshaft (side-mount) operator on a standard-lift residential sectional garage door.

DASMA TDS 1502 - IRC R609.4.1 Wind Load Labels on Garage Doors

DASMA TDS 1502 explains the wind load label requirement in IRC R609.4.1, which mandates that every garage door carry a permanent label stating its rated design pressure.

DASMA TDS 151 - General Code Inspection Guidelines for Sectional Garage Doors

DASMA TDS 151 outlines what building inspectors check when they review a sectional garage door installation.

DASMA TDS 152 - Garage Doors and High Wind Events

DASMA TDS 152 explains how high winds damage garage doors, what design ratings mean, and what homeowners should do before and after a major wind event.

DASMA TDS 153 - Vertically Reinforcing Sectional Garage Doors for Wind Load

DASMA TDS 153 describes how to add vertical wind braces to existing sectional garage doors that do not meet current wind load requirements.

DASMA TDS 154 - DASMA Metal Gauge Chart for Garage Door Steel

DASMA TDS 154 publishes the official gauge-to-thickness conversion chart for steel used in garage doors.

DASMA TDS 155 - Residential and Commercial Wind Load Guides

DASMA TDS 155 provides separate wind load selection guides for residential and commercial garage doors.

DASMA TDS 156 - Wood Horizontal and Vertical Back Jamb Detail Guidelines

DASMA TDS 156 specifies the minimum lumber dimensions, fastening patterns, and geometry for wood horizontal and vertical back jambs that support a sectional garage door track system.

DASMA TDS 157 - Garage Doors and Foam Plastic Insulation

DASMA TDS 157 explains how foam plastic insulation in garage door panels is regulated under the International Building Code Section 2603, why a thermal barrier is normally required, and how DASMA-tested doors qualify for the fire-code exception that allows exposed foam in garage door sections.

DASMA TDS 158 - Glazing in Garage Doors

DASMA TDS 158 explains the glazing material options used in garage door window sections, including tempered glass, laminated glass, and polycarbonate, along with the code requirements that govern which glazing type is required based on location and use.

DASMA TDS 160 - Sectional Garage Door Terminology

DASMA TDS 160 is the official industry glossary for sectional garage door components, covering terms from back hang and bottom bracket to torsion tube and winding cone.

DASMA TDS 161 - Connecting Garage Door Jambs to Building Framing

DASMA TDS 161 specifies how garage door back jambs must be fastened to the surrounding building structure so that wind and operational loads transfer safely into the framing rather than causing the track system to pull away from the wall.

DASMA TDS 163 - U-Factor and R-Value for Residential and Commercial Garage Doors

DASMA TDS 163 explains the difference between R-value and U-factor for garage doors, why R-value alone is misleading, and how the DASMA test method (ANSI/DASMA 105) produces whole-door thermal performance numbers.

DASMA TDS 164 - Drywall Surfaces and Mounting Garage Door Hardware

DASMA TDS 164 states that garage door hardware must never be mounted directly to drywall or sheathing alone.

DASMA TDS 165 - Manual Operation of an Automatic Garage Door

DASMA TDS 165 explains how to disengage a residential garage door from its automatic operator using the red emergency release cord, operate the door manually during a power outage, and re-engage the operator when power returns.

DASMA TDS 166 - Connecting a Drawbar Operator to a Sectional Garage Door

DASMA TDS 166 covers the requirements for connecting a standard drawbar (trolley-type) garage door operator to a sectional door, including door balance requirements, header bracket placement, rail alignment, and the limits on what door types can safely use a drawbar operator.

DASMA TDS 167 - Garage Door and Operator Checklist for Home Inspectors

DASMA TDS 167 is a standardized inspection checklist covering the door panels, hardware, track, springs, operator, and safety devices that home inspectors and buyers should evaluate during a residential real estate transaction.

DASMA TDS 168 - Wind Loads on Garage Doors FAQ

DASMA TDS 168 answers the most frequently asked questions about wind loads on garage doors, including how design pressure is determined, what the label on the door means, how psf ratings relate to mph wind speeds, and what to do if a door is not rated for the local design wind speed.

DASMA TDS 171 - Official Color Codes for Torsion and Extension Springs

DASMA TDS 171 defines the industry color-coding system for garage door torsion and extension springs, letting technicians and homeowners identify spring wire diameter and IPPT (inch-pounds-per-turn) at a glance without measuring.

DASMA TDS 172 - Garage Door Labels

DASMA TDS 172 describes the labels that must be permanently affixed to a sectional garage door, including the wind pressure rating label required by IRC R609.4.1, the manufacturer's model and size label, and safety warning labels.

DASMA TDS 173 - Garage Doors and Ventilation

DASMA TDS 173 explains how garage door design affects ventilation in attached garages, including carbon monoxide risk from vehicle exhaust, the role of bottom seals and side seals in controlling air infiltration, and code requirements for separating garage air from living space.

DASMA TDS 175 - Post-High Wind Event Door Inspection by a Technician

DASMA TDS 175 describes the step-by-step inspection a trained door technician should perform after a door has been exposed to a high-wind event.

DASMA TDS 176 - Adding Weight to a Garage Door Assembly

DASMA TDS 176 explains what happens to a garage door's spring and counterbalance system when weight is added to the door, such as by installing a heavier panel, adding insulation, or attaching accessories.

DASMA TDS 177 - Applying the Kd Factor to Garage Door Wind Load Calculations

DASMA TDS 177 explains how the directionality factor Kd from ASCE 7 applies to garage door wind load calculations.

DASMA TDS 178 - Effective Wind Area for Garage Door Wind Load Calculation

DASMA TDS 178 explains how to determine the effective wind area (EWA) for a sectional garage door under ASCE 7, which affects the pressure coefficient used to calculate design wind load.

DASMA TDS 179 - Wood Garage Door Inspection and Maintenance Guidelines

DASMA TDS 179 provides a maintenance schedule and inspection checklist for wood sectional garage doors, covering finish condition, wood joint integrity, hardware lubrication, and bottom seal replacement.

DASMA TDS 180 - Wind Load Ratings for Non-Tested Garage Door Sizes

DASMA TDS 180 explains how manufacturers assign wind load ratings to garage door sizes that were never physically tested, using interpolation from tested size data.

DASMA TDS 181 - Code Inspection Guidelines for Garage Door Wind Load Compliance

DASMA TDS 181 guides building inspectors and contractors through the code inspection checklist for garage door wind load compliance.

DASMA TDS 183 - Garage Door Component Substitution Risks and Rules

DASMA TDS 183 warns that substituting non-original components in a garage door assembly can void the manufacturer's wind load rating, warranty, and safety certifications.

DASMA TDS 185 - Thermal Bowing in Insulated Garage Door Panels

DASMA TDS 185 explains why insulated garage door panels bow or warp when the outer steel skin heats up more than the inner skin.

DASMA TDS 189 - Sound Transmission and STC Ratings for Garage Doors

DASMA TDS 189 explains how garage door sound transmission is measured and expressed as a Sound Transmission Class rating.

DASMA TDS 190 - Factors Affecting Garage Door Spring Cycle Life

DASMA TDS 190 identifies the variables that shorten or extend garage door spring life: wire diameter, IPPT, coil count, tension setting, temperature, lubrication, and cycle rate.

DASMA TDS 191 - Garage Doors, Tornadoes, and Personal Safety

DASMA TDS 191 addresses tornado safety and garage doors directly: no residential garage door is rated or tested to survive a direct tornado strike.

DASMA TDS 192 - How to Secure a Garage Door Before High Wind Events

DASMA TDS 192 gives homeowners and technicians guidance on securing garage doors before a high wind event.

DASMA TDS 193 - Wind Exposure Categories for Garage Door Design

DASMA TDS 193 explains the ASCE 7 wind exposure categories (B, C, and D) and how the site's exposure category affects the required design pressure for a garage door.

DASMA TDS 194 - PSF versus MPH in Garage Door Wind Specifications

DASMA TDS 194 explains the difference between miles per hour (mph) wind speed and pounds per square foot (psf) design pressure in garage door specifications.

DASMA TDS 195 - Condensation on Garage Doors: Causes and Solutions

DASMA TDS 195 explains why condensation forms on garage doors, both on the interior face of the door and on the garage floor near the bottom seal.

DASMA TDS 196 - U-Factor Ratings and the DASMA Thermal Performance Verification Program

DASMA TDS 196 explains the DASMA Thermal Performance Verification Program, which validates manufacturer-published U-factor values for garage doors using independent testing under ANSI/DASMA 105.

DASMA TDS 197 - Water Infiltration Under the Bottom of a Sectional Garage Door

DASMA TDS 197 explains why water enters under a garage door bottom seal and what can be done about it.

DASMA TDS 199 - Garage Door Installation with Prefabricated Wood I-Joist Headers

DASMA TDS 199 addresses garage door track and hardware attachment when the header above the opening is built from prefabricated wood I-joists rather than solid lumber or LVL.

DASMA TDS 362 - Residential Garage Door Operator Pre-Wiring for New Construction

DASMA TDS 362 provides the standard pre-wiring layout for residential garage door operators in new construction.

DASMA TDS 363 - Evaluating Photoelectric Sensors on Garage Door Operators

DASMA TDS 363 describes how photoelectric sensors on garage door and gate operators are evaluated for compliance with UL 325.

DASMA TDS 364 - Photoelectric Sensor Placement Height for Residential Garage Doors

DASMA TDS 364 specifies that photoelectric sensors on residential garage doors must be mounted no more than 6 inches above the floor, with 4 to 6 inches being the standard installation range.

DASMA TDS 369 - FAQ on Automated Residential Garage Door Systems

DASMA TDS 369 answers the most common homeowner questions about automated residential garage door systems, covering topics from auto-reverse testing to what to do when the power goes out.

DASMA TDS 384 - Wall Button Mounting Height: ADA and UL 325 Requirements

DASMA TDS 384 specifies the mounting height requirements for garage door operator wall control buttons under ADA guidelines and ANSI/CAN/UL 325.

DASMA TDS 385 - Opening a Motorized Garage Door During a Power Outage

DASMA TDS 385 provides step-by-step guidance for manually releasing and operating a motorized garage door during a power outage.

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