Formaldehyde Limits

(Continued from page 46) this HUD requirement.

Panel Adhesives 1O1

Phenolic adhesive, used extensively in the engineered wood industry, is made by reacting formaldehyde with phenol When heated, the resin is cured in an irreversible reaction. Once cured, phenolic adhesive is a rigid polymer that is highly durable and moisture resistant. It has properties completely different from formaldehyde. The curing process is so thorough that all but an insignificant amount of the available formaldehyde is used up in the reaction.

Formaldehyde emission tests (ASTM E-1333) conducted on APA Rated panels showed that their emissions were below 0.1 parts per million. In fact, formaldehyde emissions from the panels were so low they could not be accurately distinguished from background levels.

In the last few years, there has been a remarkable amount of research into the effects of formaldehyde on human health (visit www.formaldehyde.org for an overview of current research). It is widely believed that it would take prolonged exposure to high levels of formaldehyde to affect a person's health. Given their very low emissions, it can be inferred that APA Rated panels present exceedingly low potential for health problems due to formaldehyde exposure.

For information on measuring the formaldehyde-emitting potential of wood products, refer to APA Technical Report: Structural Wood Panels & Formaldehyde, Form SPE- 1040.

Rosboro BigBeonro

This high strength 3000F, 2.lE beam is manufactured to match standard I-joist depths and wall framing widths. This should be your first choice for engineered floor systems.

Rosboro Stock Glulom

Like all of our glulam products, stock glulam is manufactured from kiln dried, mechanically stress rated lumber. This 24F beam is available in Architectural and Framing appearance.

Rosboro lreated Glulom

Our Treated Glulam is a 24F, l.8E glulam beam made from Southern Pine and treated with a safe wood preservative and water-repellent treatment.

Rosborol.SE lJ(

Manufactured flat, with zero camber, 1.8E IJC matches standard2x4 framing widths and is available in depths that match I-joists.

Committed to Product Terhnftol Support

Our free Rosboro KeyBeam@ software takes all of the guesswork out of specifying and selecting glulam. It allows users to easily enter the span and load conditions and automatically determine the best product for an application.

Our technical support team is also here to help architects, distributors and builders. We will quickly and accurately answer questions or troubleshoot problems from the jobsite. Call our Technical Support Hotline: r-811-451-4139.

For Glulam Salesz David Smith l-541-7 36-2158, Cindi Hensstler | -541 -1 36-2114. Toll-Free: I -888-393-2304