Why should I use Prolam Glulam instead of steel
Here are just a few reasons:
- Easier and lighter to handle and fix
- Friendlier on the environment - stores carbon rather than emitting it
- Uses NZ’s only renewable construction material - plantation timber
- Uses 14 times less energy to produce than equivalent steel beam
- Superior Fire Resistance compared to steel
- Lower maintenance - Glulam does not rust or corrode
- Cost effective - No boxing in or covering as with steel beams
- Appearance - natural warmth and beauty of timber cannot be reproduced in steel
- Will not buckle or distort in response to temperature changes
- Direct fixing of plates, joists and other connections is much easier
Why should I use Prolam Glulam instead of solid timber?
Because Prolam Glulam is manufactured from selected grade, kiln-dried material it is more stable than a sawn timber beam of the same section. The tendency of large section sawn timber to twist, split and shrink is greatly minimised in Prolam. A Prolam beam can reduce the overall section of members up to 40% compared to unseasoned timber, as they are pretensioned.
What type of quality assurance comes with Prolam Glulam Beams?
All Prolam Glulam is manufactured to comply with the Australia and New Zealand Standard AS/NZS1328 and AS5096 - Glue Laminated Structural Timber A.
Can Prolam Glulam beams be used in exterior situations?
Yes. Treatment to hazard class 3 (H3.2 or H5) is recommended for all Prolam beams exposed to the weather. Along with this treatment an exterior adhesive resorcinol is used. The finished beams must be suitably coated with either a penetrating sealer or film-forming coating. When painting or staining external Prolam Glulam beams it is preferable to use lighter colours. Dark colours attract heat and may cause surface shrinkage. Because Prolam Glulam is chemically inert it is ideal for corrosive atmospheres such as swimming pools, marine structures, fertilisers and scouring plants where steel is subject to rust and corrosion.