Across from our warehouse is a company that specialises in building wooden lodges for holiday parks. They came to us recently looking for a waterproofing solution for the roofs on 18 super-sized versions of these lodges.
This order wasn’t as straight forward as it sounded. There were a number of challenges associated with it. The biggest was that, although these lodges are built in the warehouse, they are actually split into 6 parts and carried on seperate trucks. Once they get there they are put back together. The problem this causes is that, no matter what waterproofing solution is used, this leaves structural joints that need to be resealed.
The second problem comes about with them actually being transported. When they’re on a lorry there is potentially a great deal of movement. The joints between the boards are going to move and the boards themseves will flex. Any waterproofing solution you use is going to need to accomodate this extreme movement without failing by the time they’ve arrived at their destination.
The first step, as always, was to prepare the boards. As these lodges are built new the condition of the boards on the roof was excellent. However, it is always important to make sure that
1. The surface is clean and free of any debris, grease etc
2. Any holes, cracks or splits are filled with a polurethane sealant. Also, in the case of these lodge, any screw holes and the tops of the screws themselves need some sealant (as you can see from the photos)
3. Any joints between the boards need to be sealed usng the PU sealant.
The joints where the lodges were going to be split, however, were not sealaed. When the boards were primed and Hyperdesmo HAA applied, an inch was left clear each side of these joints. They then got loaded onto the lorries and moved to North Wales (a 4 hour trip on some winding roads!)
Once they arrive there the main joints can be sealed. To do this we had to
1. Hyperseal the joints
2. Apply a primer. As more than 48 hours had passed we had to apply primer with a 4 inch overap with the exisiting waterproofing.
3. Tape the joints
4. Apply the top coat of HAA over the primed area.
When they’re finished these lodges are stunning! They have to be built in a modular fashion because they are so much bigger then a standard lodge but, using Hyperdesmo HAA, you end up with a a beautiful holiday lodge that will be watertight for years to come!
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