Maintenance

Question 1

Can you give me an example of where you identified inappropriate maintenance to a heritage building

Answer 1

1. Victorian single skin brick work originally with lime mortar pointing which had been repaired with cement mortar leading to erosion of the surrounding brickwork due to the freeze-thaw cycle.
2. Slate roof replaced with a heavier tile on a victorian raised tie roof leading to roof spread as it was not designed to take the heavier loading.
   
   1. Walls bulging outwards, cracking around window frames
   2. Sagging roofline - uneven ridge
   3. Roof spread occurs when the downward pressure of the weight of the roof starts pushing against the rafters enough that the structure itself begins to move. Rafters tend to spring out in a scissor like movement
   4. Raised tie beams had the tie further up the apex of the roof to allow for accomodation within the roof space, however this meant the rafters had to be larger sized as the ability of the ties to restrain the roof is reduced the further up the apex they go and without purlins.

Question 2

Can you give me an example of where you identified inappropriate maintenance to a heritage building

Answer 2

Victorian single skin brick work originally with breathable lime mortar pointing which had been repaired with impermeable cement mortar leading to erosion of the surrounding brickwork due to the freeze-thaw cycle. Also heavy tiles used to replace an original slate roof leading to roof spread as the raised tie roof was not designed to support the additional loading.

Question 3

1. What did you learn in the maintenance strategy CPD?

Question 4

1. What is the difference between reactive and planned maintenance?

Answer 4

1. Reactive - adhoc attends to issues as they arise and can be more costly.
2. Planned maintenance is a proactive asset management strategy
   
   1. Can be budgeted for in advance
   2. Considers the condition of the building and can be reviewed
   3. ensures buildings and their components function adequately
   4. preserves the value of the building
   5. satisfies legal obligations and achieves best value in terms of built assets during the occupancy phase of the building