Maintenance and Care for Glulam Houses
Although glulam has an impressive track record of durability, it still requires care in order to prevent damage and deterioration from the elements – specifically water damage – so immediate remedial action must be taken in order to maintain structural integrity and ensure its continued serviceability. Water damage should always be dealt with quickly for best results.
Seasoning checks (longitudinal cracks) in individual glulam members may appear over time as they adjust to changing conditions on a job site and elsewhere. To reduce this effect, protect glulam from direct exposure to rain and sunlight using opaque wrappings with ventilation openings on their bottom side for ventilation purposes.
Water Damage
Glulam is often employed in buildings and structures exposed to weather, like buildings. Although a highly durable material, its lifespan depends on several factors that similarly determine sawn timber’s – species selection for natural durability; robust design detailing (especially fixings); preservative/protective coatings applied during construction/use and managing moisture exposure during use and construction.
When shipping, glulam is often covered in protective lumber wrap to safeguard it against damage and keep it dry until installation. As soon as possible after the wrapping has been removed to allow drying in an enclosed building; if exposed glulam must remain exposed it can be covered temporarily with sheltering to reduce direct exposure to adverse weather conditions.
Long-term exposure of glulam to water can cause it to expand excessively, straining its glue joints and leading to deformation, cracking or warping of its wood structure. Furthermore, this damage may increase decay rates as well as foster the growth of fungus on its surface.
An inspection of any damaged glulam structure must be conducted carefully in order to ascertain its source and extent of damage, with targeted repairs made depending on this information. These repairs can target specific weak points within the structure in order to restore structural integrity of a glulam girder girder glulam structure. Rehabilitating glulam structures supports sustainable construction practices by prolonging their lifespan, recycling materials and contributing to circular economy and environmental responsibility. Binkley Construction can offer expert advice and quality service when conducting inspections of existing or proposed new build glulam structures.
Excess Moisture
As with other wood products, glulam may experience seasoning checks as its moisture content shifts between manufacturing levels and that of finished buildings. The severity of such checks depends on factors such as handling practices at distribution facilities and job sites as well as regional climate conditions and installation environments.
Recently, I worked on a water park project where some glulam lags had become compromised with excessive moisture, showing signs of decay in their wood structure. They are located behind large duct sock without eave vents – their moisture levels read 6%!
To minimize seasoning checks, it is critical that moisture exposure be restricted and protected from weather conditions until the building has been enclosed and relative humidity can gradually be decreased. This can be achieved through limited job site storage space, protective wrapping methods and timely delivery schedules to allow for timely installation.
Deterioration
Long-term moisture damage to glulam structures can wreak havoc with their structural integrity, manifesting as discolored patches on the wood, black mold growth and general weakening of timber surfaces – often to the extent where knives or screwdrivers will easily penetrate them. A careful inspection and targeted repair of weak points can halt further deterioration while potentially saving money on replacement costs.
Glulam beams may become damaged through overloading, stress and age. This may result in their buckling or breaking; however, this issue can often be remedied through load analysis and design changes.
Like sawn lumber, glulam structures can also degrade due to improper specification, transportation and storage practices or installation practices that limit its longevity. Such issues will reduce its durability over time.
Moisture changes are the primary cause of damage to glulam panels, but other factors can contribute to its degradation as well. Metal fasteners such as nails or screws used with glulam panels is particularly problematic since any chemical reaction between metal and timber accelerates rot and delamination.
Maintaining close weather monitoring and protecting glulam from direct exposure to harsh conditions is of the utmost importance for its continued performance and durability. Glulam should ideally be stored in a controlled environment until needed on-site, before moving under cover for storage – this will reduce moisture and temperature fluctuations that cause damage, while good-condition glulam can even be reused by construction projects, providing sustainable resources for construction. If your glulam has begun showing signs of wear or deterioration, contact experts in glulam repairs who can restore it back to its intended performance and durability – the sooner repair will restore its performance and durability – so plan accordingly for when needing repairs will take place if panels or beams still exist for them!
Cracks
Building materials give architects and construction professionals plenty of options when selecting building materials, as they use this decision to determine how long a structure will stand the test of time, its sustainability, aesthetic appeal, or aesthetic durability. One material gaining in popularity is glulam which offers strength, sustainability and beauty all in one revolutionary construction solution.
Glulam is an engineered timber product produced by adhering long laminations of dimension lumber together using moisture-resistant adhesives that bond them together at their grain lines, known as laminations, with durable glues. Once assembled into massive timber sections for structural support and creative architectural features, glulam offers greater structural and load carrying capacities than traditional framing materials.
Due to its superior manufacturing process, glulam is extremely durable. Furthermore, its dimensions remain stable with regular usage; however, rapid humidity fluctuations could cause it to experience swelling or delamination.
Glulam is strong enough to withstand damage from wind-borne debris or seismic loads, as well as resist corrosion caused by chemicals – making it suitable for structures in challenging environments like animal hide curing complexes, fellmongeries and fertiliser storage facilities.
Compared to steel and concrete structures, glulam has superior fireproofing properties and can be designed to meet stringent codes and requirements for structural integrity during a fire. Charring rates of glulam structures can be calculated to ensure their structural integrity remains uncompromised while still offering escape routes for occupants in case of fire outbreak.
Weak Points
Glulam’s engineered design makes it highly flexible, enabling architects to shape it into curves, arches and tapering forms to support architectural features like vaulted ceilings or impressive trusses. Furthermore, they can also add visual interest by being stained, painted or left natural depending on your architectural style or project – no matter how glulam beams are utilized! With their strength and durability glulam beams are an exceptional material choice for high performance construction applications.
As part of its manufacturing process, glulam is coated with an alkyd sealer to provide protection from moisture and fungus that could weaken its structure. Unfortunately, over time this coating will degrade over time unless preservative treatment is applied regularly – something which may be required in high humidity applications like salt storage domes and potash warehouses.
Exterior applications call for wood preservative to be applied to each glulam member’s underside that will come into contact with soil, particularly areas which will have large fluctuations in moisture content as well as potential fungi or insect invasion. This will help avoid drastic swings in moisture content as well as potential invasion from fungus or insects.
Transport and erection of the final product should take place with sufficient protective wrapping to limit exposure to weather conditions, with this remaining in place as long as possible before it can be sealed off in its enclosure from external forces. It is also essential to design heating outlets which do not directly impact glulam members and cause abrupt swings in relative humidity levels.
Although glulam can make for an ideal material choice in various construction applications, its durability may be compromised over time due to environmental conditions or improper handling. Therefore, regular inspection should be undertaken in order to identify damage as early as possible and maintain good repair so that your structure continues to perform at its highest potential for years.