ULTRA joist from Glenalmond Timber has been super dried to a moisture content of 12% and fully preservative treated to a 60 year service life, incorporating a highly effective water repellent. This means any subsequent moisture content problems are dramatically reduced. Problems such as squeaky floorboards, popping nails and cracks in ceiling finishes are virtually eliminated
Developed in 2004, ULTRA joist has been used by the timber frame and masonry sector extensively and is the leader in medium high rise structural solid joists. ULTRA joist is designed to give a far higher performance in service than any other structural timber currently available on the market. It is approved by both NHBC and Zurich for internal structural applications and is specified extensively for medium rise building due to its unique moisture repellent properties.
ULTRA joist significantly reduces shrinkage and its associated problems, by arriving on site with a moisture content very close to the equilibrium moisture content that the timber will attain once the heating system has been operational for several months
This unique ULTRA joist treatment not only offers the same 60 year protection as other recognised preservatives, but does so using only a fraction of the water (in some cases only 5%) required by other market leading preservatives. This ensures no swelling or resultant shrinkage caused by the treatment process. Also the built-in water repellent significantly reduces the possibility of moisture ingression regardless of on-site conditions