Subscribe via Email

Your email:

Follow Me

American West Roofing Blog

Current Articles | RSS Feed RSS Feed

Felt vs. Synthetic - Roofing underlayment

  
  
  
  
  
  

Felt vs. Synthetic - Roofing Underlayment

There are many factors to consider about roofing: from shingles, leak barriers, pipe boots, ventilation, fixture accessories and underlayment, each play a critical role in providing an environmental barrier for the premises. The barrier is laid to prevent the penetration of water, heat and wind from entering the premises even at significant volumes or velocities for each of the weather elements.

Roofing underlayment is laid between the roofing shingles and the roof decking. This is done for Three reasons:

1.    As a water barrier; preventing external water vapor or precipitation from percolating onto the roofing deck

2.    Prevents parts of the shingles chemical mixture from leaking onto the roofing deck, causing expensive repairs

3.    Acts as a secondary ambient barrier, reinforcing the purpose of heat and sound insulation

When laying your roofing underlayment, you may want to compare the differences and distinctions between Felt and synthetic underlayment. It is the subject of a lot of debate for roofing solutions in the determination of efficiency, cost and durability.

Synthetic

These are artificially manufactured materials from polypropylene, fiberglass, polyethylene and polyester. They are light materials that are placed under the roofing shingles, offering a lighter, water and radiation resistant barrier for the roof deck. The materials make for a more efficient water barrier without the factoring of mass, meaning that the sheets are significantly thinner and lighter compared to felt paper roofing underlayment

Felt

This is essentially made from asphalt saturated paper that is used to increase the density of the underlayment, and increase the water resistance property with increasing weight. It is usually packed in 15 to 30lbs blocks, with 30lbs with the greatest water resistant property. They are however quite heavy, and challenging to install.

feltonroof resized 600

 

Making the Choice

Both solutions have viability and preference based on your needs and constraints.

·         Considering Price, synthetic solutions cost generally more than felt roofing underlayment. This goes back to the cost of manufacturing and refinement process, they are however more efficient in preventing water and seepage.

·         Felt roofing underlayment is effective as the weight increases, it is challenging to install but reliable in preventing seepage.

·         Synthetic underlayment is safe to install, it allows room to move around due to the comparatively low volume per installation area. It is also strong, hence durable, giving you a significant duration between the installation and the next roof repair.

·         Felt is sticky to work with and slippery to walk on due to the asphalt and petroleum parts that make it up, it is therefore harder to install and presents an element of risk.

·         Synthetic underlayment comes in rolls of 250 feet at 48" wide, which means you can cover more area with one roll-out, approximately 1000 square feet under an incredible 40lbs, which compared to felt underlayment, weighs about six times more for the same coverage area.

·         Synthetic underlayment lasts significantly longer than felt roofing underlayment; this is because the chemical composition for synthetic solutions are more stable in response to ambient catalysts, therefore the degradation process is slower.

Looking at all the elements: safety, ease of installation, cost, efficiency in water-proofing, additional features, weight and ease of management and durability, it would seem that synthetic roofing underlayment wins the day, but then again, advantages do not have to prove viability or preference, cost constraints or construction specifications may dictate otherwise. 

 

Comments

Awesome post. Thanks for sharing. I really learned a lot. Keep it up.
Posted @ Sunday, June 09, 2013 11:07 PM by north carolina general contractors
Can syntheitic felt be used with concrete tiles? What is the best brand or type of synthetic felt?
Posted @ Saturday, February 01, 2014 11:08 AM by Phil Swanson
Are Synthetic felt better than paper felt to used on concrete tiles in a very hot weather during summer and 25 degrees during cold weather? if so what brand and how thick synthetic felt should I buy that conform to building standard
Posted @ Tuesday, April 08, 2014 9:33 PM by mario
good article for synthetic felt. 
Posted @ Tuesday, April 29, 2014 12:03 AM by pete thrift
Dear Sirs, 
 
  We have your name and adress from the internet and take this opportunity to set up business relations with you. Our company named as Baoding longjun Building Material Co.,ltd.It is located in Hebei province,China.We are a big factory deal with synthetic roofing underlayment and has meet or exceeds the applicable srandards of ASTM D226,ASTM d4869 Customers are quite satisfiled with our products since they are of good quality and competitive price. We want to have chance to cooperate with you. 
 
 Best regard, 
Monika 
Skype:monika.zhang1  
Mail:monika@longjungroup.com  
Tel:86-15031985932 
Posted @ Monday, May 05, 2014 9:25 PM by monika
It has applicable data. Thanks for posting this. Your blog is so intriguing and very informative. Liquid rubber roofing
Posted @ Thursday, July 24, 2014 5:07 AM by ERICA
Robertson's output replica wathces and effectiveness dipped louis vuitton replica the next two seasons, leading chanel outlet to his retirement in 1974. He was elected to the Hall of Fame in 1979 and named replica shoes to the NBA's 35th Anniversary Team in 1980. 
Posted @ Monday, August 04, 2014 1:14 AM by crosunkow
Which synthetic underlayments are radiation resistant? Which metal roofs are radiation resistant?
Posted @ Monday, August 11, 2014 11:16 AM by john
<p>Nike Jordan Shoes, http://www.nike-jordanshoes.com/
 
Polo T Shirts, http://www.polo-tshirts.com/
 
Beats By Dre Outlet, http://www.beatsbydreoutlet.net/
 
Michael Kors Outlet Online, http://www.michaelkorsus.com/
 
North Clearace Outlet, http://www.northsclearance.com/
 
Polo Outlet, http://www.ralph-laurensale.com/
 
Gucci Shoes Outlet, http://www.gucci-shoesuk2014.com/
 
Michael Kors Outlet, http://www.michael-korsstates.com/
 
Polo Outlet Store, http://www.polooutlet-store.com/
 
Ralph Lauren Outlet, http://www.ralph-laurenhome.com/
 
Marc Jacobs On Sale, http://www.marcjacobsonsale.com/
 
MCM Outlet, http://www.mcmworldwides.com/
 
Sac Longchamp Pairs, http://www.salongchamppairs.com/
 
Canada Goose Outlet, http://www.canada-gooser.com/
 
Burberry Outlet, http://www.burberrybags2014.com/
 
Michael Kors Outlet, http://www.michaelkors.so/
 
Coach Outlet Online, http://www.shopbestgoods.com/
 
Hermes Outlet, http://www.hermes-outletonline.com/
 
Oakley Sunglaases Factory, http://www.oakley-sunglassfactory.com/
 
North Face Outlet Online, http://www.north-faceoutlets.net/
 
Moncler Clearance, http://www.moncler-clearance.com/
 
Woolrich Clearance, http://www.woolrich-clearance.com/
 
Barbour Jackets Outlet Online, http://www.barbour-jacketsoutlet.com/
 
Moncler Jackets Outlet Online, http://www.moncler-jacketsoutletonline.com/
 
Monster Beats Outlet, http://www.monsterbeatsbydres.net/
 
Louis Vuitton Outlet, http://www.louis-vuittonblackfriday.com/
 
Louis Vuitton Factory, http://www.lv-guccishoesfactory.com/
 
Discount Clothes Sale, http://www.cheapdiscountoutlet.com/
 
Michael Kors Factory Online, http://www.michael-korsfactoryonline.com/
 
Coach Factory Outlet, http://www.coachsfactoryoutlet.com/
 
Coach Black Friday, http://www.coach-blackfriday2014.com/
 
Coach Store Outlet Online, http://www.coach-storeoutletonline.com/
 
Coach Factory Outlet Online, http://www.coach-factorysoutletonline.com
 
Coach Outlet, http://www.coachccoachoutlet.com/
 
Coach Factory, http://www.coach-factories.net/
 
Coach Purses Outlet Online, http://www.coach-pursesoutletonline.com/
 
Coach Outlet USA, http://www.coach-outletsusa.com/
 
Coach Outlet Online USA, http://www.zxcoachoutlet.com/
 
Coach Factory Outlet Online, http://www.mischristmas.com/
 
Black Friday, http://www.misblackfriday.com/
 
Coach Purses Outlet Online, http://www.newoutletonlinemall.com/
 
Ralph Lauren Polo, http://www.ralphlaurenepolo.com/
 
coachfactory.com, http://www.bestcustomsonline.com/
 
Polo Outlet Online
 
Coach Factory Outlet Online 
Coach Outlet Online, http://www.shopbestgoods.com/
 
Coach Handbags Outlet, http://www.shopbestgoods.com/
 
Louis Vuitton Outlet, http://www.shopbestgoods.com/louis-vuitton-bags-c-1.html
 
Hermes Bags Outlet, http://www.shopbestgoods.com/hermes-bags-c-2.html
 
Prada Outlet Online, http://www.shopbestgoods.com/prada-bags-c-3.html
 
Chanel Outlet, http://www.shopbestgoods.com/chanel-bags-c-4.html
 
Gucci Outlet, http://www.shopbestgoods.com/gucci-bags-c-5.html
 
Burberry Outlet Online, http://www.shopbestgoods.com/burberry-bags-c-6.html
 
Celine Outlet Online, http://www.shopbestgoods.com/celine-bags-c-7.html
 
Balenciaga Outlet Online, http://www.shopbestgoods.com/balenciaga-bags-c-8.html
 
Christian Dior Outlet, http://www.shopbestgoods.com/christian-dior-bags-c-9.html
 
Chloe Outlet, http://www.shopbestgoods.com/chloe-bags-c-10.html
 
Bvlgari Outlet, http://www.shopbestgoods.com/bvlgari-bags-c-11.html
 
Bally Outlet Online, http://www.shopbestgoods.com/bally-bags-c-12.html
 
coach Outlet Online, http://www.shopbestgoods.com/coach-bags-c-13.html
 
Michael Kors Outlet, http://www.shopbestgoods.com/michael-kors-bags-c-14.html
 
MCM Backpack Outlet, http://www.shopbestgoods.com/mcm-bags-c-15.html
 
Fendi Outlet, http://www.shopbestgoods.com/fendi-bags-c-16.html
 
mulberry Outlet Online, http://www.shopbestgoods.com/mulberry-bags-c-17.html
 
Marc Jacobs Outlet Online, http://www.shopbestgoods.com/marc-jacobs-bags-c-18.html
 
Miu Miu Outlet, http://www.shopbestgoods.com/miu-miu-bags-c-19.html
 
Ysl Outlet, http://www.shopbestgoods.com/ysl-bags-c-20.html
 
Tory Burch Outlet, http://www.shopbestgoods.com/tory-burch-bags-c-21.html
 
Givenchy Outlet, http://www.shopbestgoods.com/givenchy-bags-c-22.html
 
Ferragamo Outlet, http://www.shopbestgoods.com/ferragamo-bags-c-23.html
 
Lancel Outlet, http://www.shopbestgoods.com/lancel-bags-c-24.html
 
Loewe Bags Outlet, http://www.shopbestgoods.com/loewe-bags-c-25.html
 
Tods Outlet, http://www.shopbestgoods.com/tods-bags-c-26.html
 
Paul Smith Outlet, http://www.shopbestgoods.com/paul-smith-bags-c-27.html
 
D&G Bags Outlet, http://www.shopbestgoods.com/dg-bags-c-28.html
 
Alexander Wang Outlet, http://www.shopbestgoods.com/alexander-wang-bags-c-29.html
 
Bottega Veneta Outlet, http://www.shopbestgoods.com/bottega-veneta-bags-c-30.html
Posted @ Thursday, August 28, 2014 9:25 PM by polo
Post Comment
Name
 *
Email
 *
Website (optional)
Comment
 *

Allowed tags: <a> link, <b> bold, <i> italics