flexiblefullpage
billboard
interstitial1
catfish1
Currently Reading

How Building Teams Choose Roofing Systems

How Building Teams Choose Roofing Systems


By By Robert Cassidy, Editorial Director | January 7, 2011
This article first appeared in the January 2011 issue of BD+C.

A PDF of the Annual Roofing Survey can be downloaded at the bottom of this page.

 

Key findings of the roofing survey

  • Respondents named metal (56%) and EPDM (50%) as the roofing systems they (or their firms) employed most in projects. However, the results show that they used a wide variety of roofing types, including built-up, shakes and shingles, modified bitumen, TPO, PVC, and tiles.
  • Insulation choice was also spread among several product categories, with polyisocyanurate leading the way (62%) and EPS, XPS, and sprayed polyurethane foam also showing support.
  • More than half of respondents (53%) said their roofing projects were essentially all low-slope jobs (2/12 rise or less), but nearly a third (31%) said steep-slope roofs (>2/12 rise) comprised all or almost all of their roofing-related projects.
  • New construction and retrofits were fairly evenly split among respondents’ roofing-related projects over the last couple of years.
  • Initial cost is not the most important factor in choosing a roofing system. That honor went to durability and reliability, at least from the experience of respondents and their perception of their clients’ priorities.
  • In a related finding, it is not surprising that “leaks or failures” (42%) was the single biggest concern or worry expressed by respondents, along with such related factors as “quality/performance” (17%) and “incorrect installation” (11%). Again, cost was not the key concern, with only 13% of respondents checking it as their number one worry.
  • In terms of “green” factors, energy efficiency (52%) is far and away the crucial component of a roofing system, followed distantly by life cycle cost (25%).
  • Building information modeling is still largely in its infancy in respondents’ roofing-related projects, with less than one-third (32%) saying that they used BIM. However, the use of BIM is expected to grow to about 59% over the next two years or so.
  • Only a small percentage of respondents (4%) said they (or their firms) have made extensive use of photovoltaics on roofs in the last two years, but three in 10 (30%) had used PVs in a few projects. The upside is that 57% plan to do so in the next 18-24 months.
  • Similarly, the extensive use of green vegetative roofs is limited (2%), but 23% of respondents (or their firms) have tried them in at least a few projects in the last two years, and 38% said they intend to do so in the next 18-24 months.

Survey Methodology

The survey was emailed to a representative sample of BD+C’s subscriber list. No incentive was offered; 263 qualified returns were obtained. The majority of responses (52%) came from architects and designers, a group that represents half of BD+C’s subscriber base; however, respondents were spread across the professions and included nearly one-fifth (18%) from among owners and facilities directors. In terms of location, respondents’ roofing-related projects covered the entire U.S. (and a bit in Canada), although the Mid-Atlantic region may have been underrepresented (8%). A margin of error of 6-7% at the 95% confidence level can be applied in most cases.

Note: Some of the tables refer to “Top % rank,” the percentage of respondents who rated the factor as their single most important factor. “Weighted score” was calculated by tripling the number of respondents who rated the factor #1, doubling those who rated the factor #2 by 2, multiplying by one those who rated the factor #3 by 1, and dividing the sum by three to obtain the average.

Download a PDF of the Annual Roofing Survey below

Related Stories

| Apr 24, 2012

AECOM design and engineering team realizes NASA vision for Sustainability Base

LEED Platinum facility opens at NASA Ames Research Center at California’s Moffett Field.

| Apr 23, 2012

Vegas’ CityCenter called financial ‘black hole’

Two and a half years ago, stockholders filed six lawsuits after the stock price fell from $99.75 on Oct. 9, 2007, to $1.89 on March 5, 2009. Bondholders sued over similar steep losses.

| Apr 23, 2012

Innovative engineering behind BIG’s Vancouver Tower

Buro Happold’s structural design supports the top-heavy, complex building in a high seismic zone; engineers are using BIM technology to design a concrete structure with post-tensioned walls.

| Apr 23, 2012

AAMA releases updated specification for anodized aluminum

AAMA 611-12 describes test procedures and requirements for high performance (Class I) and commercial (Class II) architectural quality aluminum oxide coatings applied to aluminum extrusions and panels for architectural products.

| Apr 23, 2012

Thornton Tomasetti project wins AISC Merit Award

Thornton Tomasetti provided structural design services through construction administration to architect HOK for the 1.6-million-sf tower and tiara structure, which comprises 15 steel tube arches spanning approximately 158 feet horizontally and 130 feet vertically from the top of the main building roof.

| Apr 23, 2012

Construction underway on City Winery Chicago

The Building Team is maintaining the old brick and timber construction, while adding 5,000-sf of new construction in the form of a two-story addition within the site’s existing courtyard.

| Apr 20, 2012

McCarthy completes Santa Barbara Cottage Hospital Replacement Facility

The new hospital’s architectural design combines traditional Santa Barbara Spanish colonial architecture with 21st century medical conveniences highlighted by a therapeutic and sustainable atmosphere.

| Apr 20, 2012

Century-old courthouse renovated for Delaware law firm offices

To account for future expansion, Francis Cauffman developed a plan to accommodate the addition of an 8-story tower to the building.

| Apr 20, 2012

RCMA and Oak Ridge National Laboratory to host International Roof Coatings Conference

The International Roof Coatings Conference will feature keynote speakers Marc LaFrance of the U.S. Department of Energy, and Art Rosenfeld of the Lawrence Berkeley National Laboratory.

| Apr 20, 2012

Shawmut completes Yard House Restaurant in Boston

12,000-sf restaurant marks new addition to Boston’s Fenway neighborhood.

boombox1
boombox2
native1

More In Category


Urban Planning

Bridging the gap: How early architect involvement can revolutionize a city’s capital improvement plans

Capital Improvement Plans (CIPs) typically span three to five years and outline future city projects and their costs. While they set the stage, the design and construction of these projects often extend beyond the CIP window, leading to a disconnect between the initial budget and evolving project scope. This can result in financial shortfalls, forcing cities to cut back on critical project features.



Libraries

Reasons to reinvent the Midcentury academic library

DLR Group's Interior Design Leader Gretchen Holy, Assoc. IIDA, shares the idea that a designer's responsibility to embrace a library’s history, respect its past, and create an environment that will serve student populations for the next 100 years.

halfpage1

Most Popular Content

  1. 2021 Giants 400 Report
  2. Top 150 Architecture Firms for 2019
  3. 13 projects that represent the future of affordable housing
  4. Sagrada Familia completion date pushed back due to coronavirus
  5. Top 160 Architecture Firms 2021