We value your feedback! Please complete the form below so that we can tailor our services to your specific needs.
United 15 Lb. & 30 Lb. Felt DESCRIPTION United 15 Lb. & 30 Lb. Felt is an asphalt-saturated organic felts designed for use as an underlayment with asphalt shingles in commercial and residential applications. A shingle underlayment is used to protect roof structures and the interior from water penetration. PREPARATION
WhatsApp: +86 18221755073
11.2 Asphalt Roofing 11.2.1 General1-2 The asphalt roofing industry manufactures asphalt-saturated felt rolls, fiberglass and organic (felt-based) shingles, and surfaced and smooth roll roofing. Most of these products are used in roof construction, but small quantities are used in walls and other building applications. 11.2.2 Process Description1-4
WhatsApp: +86 18221755073
Q. When should asphalt saturated organic felt be covered? A. Immediately! Asphalt saturated organic felt underlayments by themselves are not a waterproof roofing system. Underlayments should be covered by the primary roof covering immediately to protect the integrity of the material as a secondary water-resistant membrane within the roof system.
WhatsApp: +86 18221755073
1.1 This specification covers asphalt-saturated and coated organic felt base sheet with mineral surfacing on the top side, with or without perforations, for use as the first ply of a built-up roof. When not perforated, this sheet is suitable for use as a vapor retarder, with a solid mopping of asphaltic material, under roof insulation or between multiple layers of roof insulation.
WhatsApp: +86 18221755073
During IBHS' wind-driven rain testing in 2014, several different types of asphalt-saturated felt were purchased and installed on the roof of a singlestory residential - ... ASTM standards, meaning they may lack the weight, saturation, and other specified requirements. If a product is not labeled as meeting the ASTM D226 or ASTM D4869
WhatsApp: +86 18221755073
Synthetic underlayment can have a much lower perm rating than more traditional asphalt saturated felt. Before choosing a synthetic underlayment, check its perm rating and verify that its appropriate for your roof. Synthetic underlayment is also more expensive than asphalt-saturated felt, costing up to twice as much, but typically around 50% more.
WhatsApp: +86 18221755073
The meaning of ASPHALTIC FELT is a roofing and waterproofing material consisting of saturated asbestos or rag felt cemented together with asphalt or tar pitch.
WhatsApp: +86 18221755073
Traditional asphalt-saturated felt is generally more affordable, making it a good option for budget-conscious homeowners. However, while synthetic felt may be more expensive upfront, its superior durability can result …
WhatsApp: +86 18221755073
Asphalt saturated felt has been on the market a long time. This is a paper product that is saturated in crude oil byproducts to help protect the paper itself against water. It comes in 15-pound and 30-pound thicknesses with the …
WhatsApp: +86 18221755073
- Asphalt shingles consist of fiberglass mat impregnated and coated on both sides with filled asphalt and surfaced on the exposed-to-weather portion with mineral granules. Asphalt shingles are self-sealing. - Primary weather barrier Underlayment ASTM D226, D4869; CSA 123.3 - Underlayment consists of organic felt saturated with asphalt
WhatsApp: +86 18221755073
Asphalt-saturated felt has long been the go-to choice for roofing underlayment. This type of underlayment, often called roofing felt, felt paper, or tar paper, is made from polyester, cellulose (natural plant fibers), and asphalt …
WhatsApp: +86 18221755073
Asphalt-saturated felt: Commonly known as felt paper or tar paper, this traditional underlayment is made from a base of cellulose, polyester, or bitumen saturated with asphalt. It's cost-effective, offers basic water resistance, and comes in …
WhatsApp: +86 18221755073
Roof underlayment can be made of asphalt-saturated felt, rubberized asphalt or non-bitumen synthetic. Asphalt-saturated felt is perhaps the most popular choice. It is one of the most common underlayments used by residential roofers and can consist of either an organic or fiberglass substrate. Of the two, organic, having a cellulose base, is ...
WhatsApp: +86 18221755073
When the roofing industry began using asphalt-saturated felt underlayment, manufacturers offered two different levels of tar paper thickness: #15 and #30. The #15 and #30 tar paper designators used to mean that a 100-foot roll of 36-inch wide tar paper would weigh either 15 or 30 pounds, respectively, depending on the thickness of the paper.
WhatsApp: +86 18221755073
Asphalt-Saturated Felt: This traditional underlayment is commonly used in roll roofing applications. It provides excellent protection against water infiltration and acts as an additional barrier against leaks. Synthetic Underlayment: Unlike traditional felt, synthetic underlayment offers higher tear resistance and durability. It's also lighter ...
WhatsApp: +86 18221755073
Often called felt paper or tar paper, asphalt-saturated felt underlayment is a conventional and extensively used roofing underlayment. It …
WhatsApp: +86 18221755073
These materials often define sheathing membrane requirements and are referenced in today's building codes. Let's compare the three most popular types of sheathing membranes. Asphalt saturated felt. Asphalt saturated felt paper (a.k.a. tar paper) is the oldest of the common sheathing membrane types. Recycled organic material (historically ...
WhatsApp: +86 18221755073
ASTM is the standard specification and provides certain test methods for Asphalt-Saturated Organic Felt Shingle Underlayment used in roofing and applies to material used as underlayment in steep-slope roof systems. The standard addresses material characteristics and physical property requirements. CLASSIFICATIONS: ASTM D226
WhatsApp: +86 18221755073
Asphalt-Saturated Felt Underlayment Gorilla Guard® 30 is designed to outperform traditional felt roof underlayment by combining specially developed additives with glass fibers. The superior quality, time and labor saved by using Atlas engineered underlayment encourages more contractors to offer it to customers as a standard product rather than ...
WhatsApp: +86 18221755073
There are two main types of asphalt saturated roofing felts: 15 lb. and 30 lb. The numbers typically represent the weight in pounds per hundred square feet. Roofing felt that's 15 lbs. per hundred square feet is often used in applications where you want to reduce the weight placed on the roof.
WhatsApp: +86 18221755073
Asphalt-saturated felt is the most DIY-friendly option because it's straightforward to install, readily available, and requires minimal specialized tools. The material is easy to cut, lay down, and secure with nails or staples, making it a suitable choice for homeowners with advanced roofing DIY skills and tools. Synthetic underlayment can also ...
WhatsApp: +86 18221755073
#15 Asphalt Saturated Underlayment. Suitable for most standard-pitched roofing applications, #15 felt underlayment features a heavy organic mat with high asphalt saturation and excellent tear strength. #15 Asphalt Saturated Underlayment Benefits. Heavier roll weight; Highly visible alignment lines; Easier roll-out with less sticking
WhatsApp: +86 18221755073
This Standard covers asphalt saturated organic roofing felt, with perforations, to be used with roofing asphalts conforming to CSA A123.4 in the construction of built-up roofing membranes, without perforations, applied as an underlayment beneath asphalt shingles, woods shakes and shingles, tiles, and other roof coverings. The following types of roofing felts are addressed by …
WhatsApp: +86 18221755073
which is currently defined as Type I asphalt-saturated felt in ASTM D 226, Standard Specification for Asphalt-Saturated Organic Felt Used in Roofing and Waterproofing. 1 . Advances in the construction polymer field beginning in the 1960s brought new polymeric WRB products to the market as substitutes for No. 15 asphalt felt (refer to . Figure 2).
WhatsApp: +86 18221755073
No, asphalt-saturated felt paper is NOT a moisture barrier (neither the 15lb. felt nor the 30 lb felt). It may help to slow down moisture and have some wicking qualities, but it does not stop it. If you need a moisture barrier for a floating floor, you will need to use a 3 in 1 underlayment.
WhatsApp: +86 18221755073
Asphalt saturated felt has been around the longest, which makes it a popular choice because roofers are familiar with it. But there is also rubberized asphalt and non-bitumen synthetic underlayment, too.
WhatsApp: +86 18221755073
Saturated Felt Definition: A felt which is impregnated with tar or asphalt.
WhatsApp: +86 18221755073
1.1 This specification covers asphalt-saturated organic felts, with or without perforations, intended to be used with asphalts conforming to the requirements of Specification D 312 in the construction of built-up roofs, and with asphalts conforming to the requirements of Specification D 449 in the construction of water proofing systems.. 1.2 The values stated in either SI units or inch-pound ...
WhatsApp: +86 18221755073
scope: This specification covers asphalt-saturated organic felts, with or without perforations, intended to be used with asphalts conforming to the requirements of Specification D312/D312M in the construction of built-up roofs, and with asphalts conforming to the requirements of Specification D449/D449M in the construction of water proofing systems.
WhatsApp: +86 18221755073
